diff --git a/docs/reference/codireco.md b/docs/reference/codireco.md
index 9551e34..4b5598c 100644
--- a/docs/reference/codireco.md
+++ b/docs/reference/codireco.md
@@ -2,28 +2,23 @@
 
 ## codireco
 
-Basis Function Combinator
+Combinator
 
-codi reco
-
-Gentzen diagram.
+This is part of the [make_generator] function.  You would not use this
+combinator directly.
 
 ### Definition
 
-if not basis.
-
-### Derivation
-
-if not basis.
-
-### Source
-
-if basis
+> [codi] [reco]
 
 ### Discussion
 
-Lorem ipsum.
+See [make_generator] and the 
+["Using `x` to Generate Values" notebook](https://joypy.osdn.io/notebooks/Generator_Programs.html#an-interesting-variation)
+as well as
+[Recursion Theory and Joy](https://www.kevinalbrecht.com/code/joy-mirror/j05cmp.html) by Manfred von Thun.
 
 ### Crosslinks
 
-Lorem ipsum.
+[make_generator]
+
diff --git a/docs/reference/concat.md b/docs/reference/concat.md
index e59e6b1..d1bdcd6 100644
--- a/docs/reference/concat.md
+++ b/docs/reference/concat.md
@@ -2,32 +2,33 @@
 
 ## concat
 
-Basis Function Combinator
+Function
 
-Concatinate the two lists on the top of the stack. :
+Concatinate two lists.
 
-    [a b c] [d e f] concat
+       [a b c] [d e f] concat
     ----------------------------
-        [a b c d e f]
-
-Gentzen diagram.
-
-### Definition
-
-if not basis.
-
-### Derivation
-
-if not basis.
-
-### Source
-
-if basis
-
-### Discussion
-
-Lorem ipsum.
+           [a b c d e f]
 
 ### Crosslinks
 
-Lorem ipsum.
+[first]
+[first_two]
+[flatten]
+[fourth]
+[getitem]
+[remove]
+[rest]
+[reverse]
+[rrest]
+[second]
+[shift]
+[shunt]
+[size]
+[sort]
+[split_at]
+[split_list]
+[swaack]
+[third]
+[zip]
+
diff --git a/docs/reference/cond.md b/docs/reference/cond.md
index 47f77fc..b3d26e4 100644
--- a/docs/reference/cond.md
+++ b/docs/reference/cond.md
@@ -2,39 +2,34 @@
 
 ## cond
 
-Basis Function Combinator
+Combinator
 
 This combinator works like a case statement. It expects a single quote
 on the stack that must contain zero or more condition quotes and a
-default quote. Each condition clause should contain a quoted predicate
+default quote. Each condition quote should contain a quoted predicate
 followed by the function expression to run if that predicate returns
-true. If no predicates return true the default function runs.
+`true`. If no predicates return `true` the default function runs.
+
+    [
+        [ [Predicate0] Function0 ]
+        [ [Predicate1] Function1 ]
+        ...
+        [ [PredicateN] FunctionN ]
+        [Default]
+    ]
+    cond
+
+### Discussion
 
 It works by rewriting into a chain of nested [ifte]{.title-ref}
 expressions, e.g.:
 
-    [[[B0] T0] [[B1] T1] [D]] cond
+          [[[B0] T0] [[B1] T1] [D]] cond
     -----------------------------------------
-    [B0] [T0] [[B1] [T1] [D] ifte] ifte
+       [B0] [T0] [[B1] [T1] [D] ifte] ifte
 
-Gentzen diagram.
-
-### Definition
-
-if not basis.
-
-### Derivation
-
-if not basis.
-
-### Source
-
-if basis
-
-### Discussion
-
-Lorem ipsum.
 
 ### Crosslinks
 
-Lorem ipsum.
+[ifte]
+
diff --git a/docs/reference/cons.md b/docs/reference/cons.md
index cfc19aa..6534b64 100644
--- a/docs/reference/cons.md
+++ b/docs/reference/cons.md
@@ -2,26 +2,20 @@
 
 ## cons
 
-(Basis Function)
+Basis Function
 
 Given an item and a list, append the item to the list to make a new list.
 
-       A [...] cons
+       a [...] cons
     ------------------
-         [A ...]
-
-### Source
-
-    func(cons, [list(A), B|S], [list([B|A])|S]).
+         [a ...]
 
 ### Discussion
 
-Cons is a venerable old function from Lisp.  It doesn't inspect the item
-but it will not cons onto a non-list.  It's inverse operation is called
-`uncons`.
+Cons is a [venerable old function from Lisp](https://en.wikipedia.org/wiki/Cons#Lists).
+Its inverse operation is [uncons].
 
 ### Crosslinks
 
-[ccons](#ccons)
-[uncons](#uncons)
+[uncons]
 
diff --git a/docs/reference/mkref/FuncRef.html b/docs/reference/mkref/FuncRef.html
index 16d0a74..c9d424d 100644
--- a/docs/reference/mkref/FuncRef.html
+++ b/docs/reference/mkref/FuncRef.html
@@ -815,81 +815,67 @@
 <p><a href="#appn">appN</a> <a href="#codireco">codireco</a></p>
 <hr />
 <h2 id="codireco">codireco</h2>
-<p>Basis Function Combinator</p>
-<p>codi reco</p>
-<p>Gentzen diagram.</p>
+<p>Combinator</p>
+<p>This is part of the <a href="#make_generator">make_generator</a> function. You would not use this combinator directly.</p>
 <h3 id="definition-22">Definition</h3>
-<p>if not basis.</p>
-<h3 id="derivation-2">Derivation</h3>
-<p>if not basis.</p>
-<h3 id="source">Source</h3>
-<p>if basis</p>
+<blockquote>
+<p><a href="#codi">codi</a> <a href="#reco">reco</a></p>
+</blockquote>
 <h3 id="discussion-21">Discussion</h3>
-<p>Lorem ipsum.</p>
+<p>See <a href="#make_generator">make_generator</a> and the <a href="https://joypy.osdn.io/notebooks/Generator_Programs.html#an-interesting-variation">&#x201C;Using <code>x</code> to Generate Values&#x201D; notebook</a> as well as <a href="https://www.kevinalbrecht.com/code/joy-mirror/j05cmp.html">Recursion Theory and Joy</a> by Manfred von Thun.</p>
 <h3 id="crosslinks-22">Crosslinks</h3>
-<p>Lorem ipsum.</p>
+<p><a href="#make_generator">make_generator</a></p>
 <hr />
 <h2 id="concat">concat</h2>
-<p>Basis Function Combinator</p>
-<p>Concatinate the two lists on the top of the stack. :</p>
-<pre><code>[a b c] [d e f] concat
+<p>Function</p>
+<p>Concatinate two lists.</p>
+<pre><code>   [a b c] [d e f] concat
 ----------------------------
-    [a b c d e f]</code></pre>
-<p>Gentzen diagram.</p>
-<h3 id="definition-23">Definition</h3>
-<p>if not basis.</p>
-<h3 id="derivation-3">Derivation</h3>
-<p>if not basis.</p>
-<h3 id="source-1">Source</h3>
-<p>if basis</p>
-<h3 id="discussion-22">Discussion</h3>
-<p>Lorem ipsum.</p>
+       [a b c d e f]</code></pre>
 <h3 id="crosslinks-23">Crosslinks</h3>
-<p>Lorem ipsum.</p>
+<p><a href="#first">first</a> <a href="#first_two">first_two</a> <a href="#flatten">flatten</a> <a href="#fourth">fourth</a> <a href="#getitem">getitem</a> <a href="#remove">remove</a> <a href="#rest">rest</a> <a href="#reverse">reverse</a> <a href="#rrest">rrest</a> <a href="#second">second</a> <a href="#shift">shift</a> <a href="#shunt">shunt</a> <a href="#size">size</a> <a href="#sort">sort</a> <a href="#split_at">split_at</a> <a href="#split_list">split_list</a> <a href="#swaack">swaack</a> <a href="#third">third</a> <a href="#zip">zip</a></p>
 <hr />
 <h2 id="cond">cond</h2>
-<p>Basis Function Combinator</p>
-<p>This combinator works like a case statement. It expects a single quote on the stack that must contain zero or more condition quotes and a default quote. Each condition clause should contain a quoted predicate followed by the function expression to run if that predicate returns true. If no predicates return true the default function runs.</p>
+<p>Combinator</p>
+<p>This combinator works like a case statement. It expects a single quote on the stack that must contain zero or more condition quotes and a default quote. Each condition quote should contain a quoted predicate followed by the function expression to run if that predicate returns <code>true</code>. If no predicates return <code>true</code> the default function runs.</p>
+<pre><code>[
+    [ [Predicate0] Function0 ]
+    [ [Predicate1] Function1 ]
+    ...
+    [ [PredicateN] FunctionN ]
+    [Default]
+]
+cond</code></pre>
+<h3 id="discussion-22">Discussion</h3>
 <p>It works by rewriting into a chain of nested <span class="title-ref">ifte</span> expressions, e.g.:</p>
-<pre><code>[[[B0] T0] [[B1] T1] [D]] cond
+<pre><code>      [[[B0] T0] [[B1] T1] [D]] cond
 -----------------------------------------
-[B0] [T0] [[B1] [T1] [D] ifte] ifte</code></pre>
-<p>Gentzen diagram.</p>
-<h3 id="definition-24">Definition</h3>
-<p>if not basis.</p>
-<h3 id="derivation-4">Derivation</h3>
-<p>if not basis.</p>
-<h3 id="source-2">Source</h3>
-<p>if basis</p>
-<h3 id="discussion-23">Discussion</h3>
-<p>Lorem ipsum.</p>
+   [B0] [T0] [[B1] [T1] [D] ifte] ifte</code></pre>
 <h3 id="crosslinks-24">Crosslinks</h3>
-<p>Lorem ipsum.</p>
+<p><a href="#ifte">ifte</a></p>
 <hr />
 <h2 id="cons">cons</h2>
-<p>(Basis Function)</p>
+<p>Basis Function</p>
 <p>Given an item and a list, append the item to the list to make a new list.</p>
-<pre><code>   A [...] cons
+<pre><code>   a [...] cons
 ------------------
-     [A ...]</code></pre>
-<h3 id="source-3">Source</h3>
-<pre><code>func(cons, [list(A), B|S], [list([B|A])|S]).</code></pre>
-<h3 id="discussion-24">Discussion</h3>
-<p>Cons is a venerable old function from Lisp. It doesn&#x2019;t inspect the item but it will not cons onto a non-list. It&#x2019;s inverse operation is called <code>uncons</code>.</p>
+     [a ...]</code></pre>
+<h3 id="discussion-23">Discussion</h3>
+<p>Cons is a <a href="https://en.wikipedia.org/wiki/Cons#Lists">venerable old function from Lisp</a>. Its inverse operation is <a href="#uncons">uncons</a>.</p>
 <h3 id="crosslinks-25">Crosslinks</h3>
-<p><a href="#ccons">ccons</a> <a href="#uncons">uncons</a></p>
+<p><a href="#uncons">uncons</a></p>
 <hr />
 <h2 id="dinfrirst">dinfrirst</h2>
 <p>Basis Function Combinator</p>
 <p>dip infrst</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-25">Definition</h3>
+<h3 id="definition-23">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-5">Derivation</h3>
+<h3 id="derivation-2">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-4">Source</h3>
+<h3 id="source">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-25">Discussion</h3>
+<h3 id="discussion-24">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-26">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -901,13 +887,13 @@
 -------------------
   ... Q x</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-26">Definition</h3>
+<h3 id="definition-24">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-6">Derivation</h3>
+<h3 id="derivation-3">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-5">Source</h3>
+<h3 id="source-1">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-26">Discussion</h3>
+<h3 id="discussion-25">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-27">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -919,13 +905,13 @@
 ---------------------
   ... Q y x</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-27">Definition</h3>
+<h3 id="definition-25">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-7">Derivation</h3>
+<h3 id="derivation-4">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-6">Source</h3>
+<h3 id="source-2">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-27">Discussion</h3>
+<h3 id="discussion-26">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-28">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -937,13 +923,13 @@
 -----------------------
   ... Q z y x</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-28">Definition</h3>
+<h3 id="definition-26">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-8">Derivation</h3>
+<h3 id="derivation-5">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-7">Source</h3>
+<h3 id="source-3">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-28">Discussion</h3>
+<h3 id="discussion-27">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-29">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -952,13 +938,13 @@
 <p>Basis Function Combinator</p>
 <p>The disenstacken operator expects a list on top of the stack and makes that the stack discarding the rest of the stack.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-29">Definition</h3>
+<h3 id="definition-27">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-9">Derivation</h3>
+<h3 id="derivation-6">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-8">Source</h3>
+<h3 id="source-4">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-29">Discussion</h3>
+<h3 id="discussion-28">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-30">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -971,13 +957,13 @@
 <p>divmod(x, y) -&gt; (quotient, remainder)</p>
 <p>Return the tuple (x//y, x%y). Invariant: q * y + r == x.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-30">Definition</h3>
+<h3 id="definition-28">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-10">Derivation</h3>
+<h3 id="derivation-7">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-9">Source</h3>
+<h3 id="source-5">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-30">Discussion</h3>
+<h3 id="discussion-29">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-31">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -986,13 +972,13 @@
 <p>Basis Function Combinator</p>
 <p>[0 &gt;] [dup --] while</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-31">Definition</h3>
+<h3 id="definition-29">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-11">Derivation</h3>
+<h3 id="derivation-8">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-10">Source</h3>
+<h3 id="source-6">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-31">Discussion</h3>
+<h3 id="discussion-30">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-32">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1005,13 +991,13 @@
 ----------------------
     [c d]</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-32">Definition</h3>
+<h3 id="definition-30">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-12">Derivation</h3>
+<h3 id="derivation-9">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-11">Source</h3>
+<h3 id="source-7">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-32">Discussion</h3>
+<h3 id="discussion-31">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-33">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1020,13 +1006,13 @@
 <p>Basis Function Combinator</p>
 <pre><code>(a1 -- a1 a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-33">Definition</h3>
+<h3 id="definition-31">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-13">Derivation</h3>
+<h3 id="derivation-10">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-12">Source</h3>
+<h3 id="source-8">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-33">Discussion</h3>
+<h3 id="discussion-32">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-34">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1035,13 +1021,13 @@
 <p>Basis Function Combinator</p>
 <pre><code>(a2 a1 -- a2 a2 a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-34">Definition</h3>
+<h3 id="definition-32">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-14">Derivation</h3>
+<h3 id="derivation-11">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-13">Source</h3>
+<h3 id="source-9">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-34">Discussion</h3>
+<h3 id="discussion-33">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-35">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1050,13 +1036,13 @@
 <p>Basis Function Combinator</p>
 <pre><code>(a3 a2 a1 -- a3 a3 a2 a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-35">Definition</h3>
+<h3 id="definition-33">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-15">Derivation</h3>
+<h3 id="derivation-12">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-14">Source</h3>
+<h3 id="source-10">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-35">Discussion</h3>
+<h3 id="discussion-34">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-36">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1070,13 +1056,13 @@
 ... a a   [F] dip
 ... a F a</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-36">Definition</h3>
+<h3 id="definition-34">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-16">Derivation</h3>
+<h3 id="derivation-13">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-15">Source</h3>
+<h3 id="source-11">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-36">Discussion</h3>
+<h3 id="discussion-35">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-37">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1085,13 +1071,13 @@
 <p>Basis Function Combinator</p>
 <p>dup dipd</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-37">Definition</h3>
+<h3 id="definition-35">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-17">Derivation</h3>
+<h3 id="derivation-14">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-16">Source</h3>
+<h3 id="source-12">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-37">Discussion</h3>
+<h3 id="discussion-36">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-38">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1100,13 +1086,13 @@
 <p>Basis Function Combinator</p>
 <p>stack [clear] dip</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-38">Definition</h3>
+<h3 id="definition-36">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-18">Derivation</h3>
+<h3 id="derivation-15">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-17">Source</h3>
+<h3 id="source-13">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-38">Discussion</h3>
+<h3 id="discussion-37">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-39">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1115,13 +1101,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as a == b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-39">Definition</h3>
+<h3 id="definition-37">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-19">Derivation</h3>
+<h3 id="derivation-16">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-18">Source</h3>
+<h3 id="source-14">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-39">Discussion</h3>
+<h3 id="discussion-38">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-40">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1130,13 +1116,13 @@
 <p>Basis Function Combinator</p>
 <pre><code>([a1 ...1] -- a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-40">Definition</h3>
+<h3 id="definition-38">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-20">Derivation</h3>
+<h3 id="derivation-17">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-19">Source</h3>
+<h3 id="source-15">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-40">Discussion</h3>
+<h3 id="discussion-39">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-41">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1145,13 +1131,13 @@
 <p>Basis Function Combinator</p>
 <pre><code>([a1 a2 ...1] -- a1 a2)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-41">Definition</h3>
+<h3 id="definition-39">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-21">Derivation</h3>
+<h3 id="derivation-18">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-20">Source</h3>
+<h3 id="source-16">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-41">Discussion</h3>
+<h3 id="discussion-40">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-42">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1160,13 +1146,13 @@
 <p>Basis Function Combinator</p>
 <p>&lt;{} [concat] step</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-42">Definition</h3>
+<h3 id="definition-40">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-22">Derivation</h3>
+<h3 id="derivation-19">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-21">Source</h3>
+<h3 id="source-17">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-42">Discussion</h3>
+<h3 id="discussion-41">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-43">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1176,13 +1162,13 @@
 <p>Return the floor of x as an Integral.</p>
 <p>This is the largest integer &lt;= x.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-43">Definition</h3>
+<h3 id="definition-41">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-23">Derivation</h3>
+<h3 id="derivation-20">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-22">Source</h3>
+<h3 id="source-18">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-43">Discussion</h3>
+<h3 id="discussion-42">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-44">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1191,13 +1177,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as a // b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-44">Definition</h3>
+<h3 id="definition-42">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-24">Derivation</h3>
+<h3 id="derivation-21">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-23">Source</h3>
+<h3 id="source-19">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-44">Discussion</h3>
+<h3 id="discussion-43">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-45">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1206,13 +1192,13 @@
 <p>Basis Function Combinator</p>
 <p>[i] app2</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-45">Definition</h3>
+<h3 id="definition-43">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-25">Derivation</h3>
+<h3 id="derivation-22">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-24">Source</h3>
+<h3 id="source-20">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-45">Discussion</h3>
+<h3 id="discussion-44">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-46">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1221,13 +1207,13 @@
 <p>Basis Function Combinator</p>
 <pre><code>([a1 a2 a3 a4 ...1] -- a4)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-46">Definition</h3>
+<h3 id="definition-44">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-26">Derivation</h3>
+<h3 id="derivation-23">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-25">Source</h3>
+<h3 id="source-21">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-46">Discussion</h3>
+<h3 id="discussion-45">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-47">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1236,13 +1222,13 @@
 <p>Basis Function Combinator</p>
 <p>true [tuck mod dup 0 &gt;] loop pop</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-47">Definition</h3>
+<h3 id="definition-45">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-27">Derivation</h3>
+<h3 id="derivation-24">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-26">Source</h3>
+<h3 id="source-22">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-47">Discussion</h3>
+<h3 id="discussion-46">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-48">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1251,13 +1237,13 @@
 <p>Basis Function Combinator</p>
 <p>Compiled GCD function.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-48">Definition</h3>
+<h3 id="definition-46">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-28">Derivation</h3>
+<h3 id="derivation-25">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-27">Source</h3>
+<h3 id="source-23">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-48">Discussion</h3>
+<h3 id="discussion-47">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-49">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1266,13 +1252,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as a &gt;= b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-49">Definition</h3>
+<h3 id="definition-47">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-29">Derivation</h3>
+<h3 id="derivation-26">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-28">Source</h3>
+<h3 id="source-24">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-49">Discussion</h3>
+<h3 id="discussion-48">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-50">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1297,13 +1283,13 @@
   == [I] [T] [R [P] i] ifte
   == [I] [T] [R P] ifte</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-50">Definition</h3>
+<h3 id="definition-48">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-30">Derivation</h3>
+<h3 id="derivation-27">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-29">Source</h3>
+<h3 id="source-25">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-50">Discussion</h3>
+<h3 id="discussion-49">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-51">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1316,13 +1302,13 @@
 -------------------------
  a</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-51">Definition</h3>
+<h3 id="definition-49">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-31">Derivation</h3>
+<h3 id="derivation-28">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-30">Source</h3>
+<h3 id="source-26">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-51">Discussion</h3>
+<h3 id="discussion-50">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-52">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1331,13 +1317,13 @@
 <p>Basis Function Combinator</p>
 <p>&lt;{} [cons] times</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-52">Definition</h3>
+<h3 id="definition-50">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-32">Derivation</h3>
+<h3 id="derivation-29">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-31">Source</h3>
+<h3 id="source-27">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-52">Discussion</h3>
+<h3 id="discussion-51">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-53">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1346,13 +1332,13 @@
 <p>Basis Function Combinator</p>
 <p>[stack popd] dip</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-53">Definition</h3>
+<h3 id="definition-51">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-33">Derivation</h3>
+<h3 id="derivation-30">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-32">Source</h3>
+<h3 id="source-28">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-53">Discussion</h3>
+<h3 id="discussion-52">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-54">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1361,13 +1347,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as a &gt; b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-54">Definition</h3>
+<h3 id="definition-52">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-34">Derivation</h3>
+<h3 id="derivation-31">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-33">Source</h3>
+<h3 id="source-29">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-54">Discussion</h3>
+<h3 id="discussion-53">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-55">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1376,13 +1362,13 @@
 <p>Basis Function Combinator</p>
 <p>Accepts a quoted symbol on the top of the stack and prints its docs.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-55">Definition</h3>
+<h3 id="definition-53">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-35">Derivation</h3>
+<h3 id="derivation-32">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-34">Source</h3>
+<h3 id="source-30">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-55">Discussion</h3>
+<h3 id="discussion-54">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-56">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1391,13 +1377,13 @@
 <p>Basis Function Combinator</p>
 <p>[sqr] ii + sqrt</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-56">Definition</h3>
+<h3 id="definition-54">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-36">Derivation</h3>
+<h3 id="derivation-33">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-35">Source</h3>
+<h3 id="source-31">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-56">Discussion</h3>
+<h3 id="discussion-55">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-57">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1408,22 +1394,22 @@
 <pre><code>   [Q] i
 -----------
     Q</code></pre>
-<h3 id="source-36">Source</h3>
+<h3 id="source-32">Source</h3>
 <pre><code>combo(i, [list(P)|S], S, Ei, Eo) :- append(P, Ei, Eo).</code></pre>
-<h3 id="discussion-57">Discussion</h3>
+<h3 id="discussion-56">Discussion</h3>
 <p>This is probably the fundamental combinator. You wind up using it in all kinds of places (for example, the <code>x</code> combinator can be defined as <code>dup i</code>.)</p>
 <hr />
 <h2 id="id">id</h2>
 <p>Basis Function Combinator</p>
 <p>The identity function.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-57">Definition</h3>
+<h3 id="definition-55">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-37">Derivation</h3>
+<h3 id="derivation-34">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-37">Source</h3>
+<h3 id="source-33">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-58">Discussion</h3>
+<h3 id="discussion-57">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-58">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1443,13 +1429,13 @@
 ... [else] [then] [...] [if] infra first choice i</code></pre>
 <p>Has the effect of grabbing a copy of the stack on which to run the if-part using infra.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-58">Definition</h3>
+<h3 id="definition-56">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-38">Derivation</h3>
+<h3 id="derivation-35">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-38">Source</h3>
+<h3 id="source-34">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-59">Discussion</h3>
+<h3 id="discussion-58">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-59">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1460,13 +1446,13 @@
 ------------------
  ... Q a Q</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-59">Definition</h3>
+<h3 id="definition-57">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-39">Derivation</h3>
+<h3 id="derivation-36">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-39">Source</h3>
+<h3 id="source-35">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-60">Discussion</h3>
+<h3 id="discussion-59">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-60">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1477,9 +1463,9 @@
 <pre><code>   ... [a b c] [Q] infra
 ---------------------------
     c b a Q [...] swaack</code></pre>
-<h3 id="definition-60">Definition</h3>
+<h3 id="definition-58">Definition</h3>
 <pre><code>swons swaack [i] dip swaack</code></pre>
-<h3 id="discussion-61">Discussion</h3>
+<h3 id="discussion-60">Discussion</h3>
 <p>This is one of the more useful combinators. It allows a quoted expression to serve as a stack for a program, effectively running it in a kind of &#x201C;pocket universe&#x201D;. If the list represents a datastructure then <code>infra</code> lets you work on its internal structure.</p>
 <h3 id="crosslinks-61">Crosslinks</h3>
 <p><a href="#swaack">swaack</a></p>
@@ -1488,13 +1474,13 @@
 <p>Basis Function Combinator</p>
 <p>infra first</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-61">Definition</h3>
+<h3 id="definition-59">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-40">Derivation</h3>
+<h3 id="derivation-37">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-40">Source</h3>
+<h3 id="source-36">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-62">Discussion</h3>
+<h3 id="discussion-61">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-62">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1506,13 +1492,13 @@
 <p>[sqr dup mul] inscribe</p>
 </blockquote>
 <p>Gentzen diagram.</p>
-<h3 id="definition-62">Definition</h3>
+<h3 id="definition-60">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-41">Derivation</h3>
+<h3 id="derivation-38">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-41">Source</h3>
+<h3 id="source-37">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-63">Discussion</h3>
+<h3 id="discussion-62">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-63">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1521,13 +1507,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as a &lt;= b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-63">Definition</h3>
+<h3 id="definition-61">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-42">Derivation</h3>
+<h3 id="derivation-39">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-42">Source</h3>
+<h3 id="source-38">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-64">Discussion</h3>
+<h3 id="discussion-63">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-64">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1543,13 +1529,13 @@
 ------------------------
    ...</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-64">Definition</h3>
+<h3 id="definition-62">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-43">Derivation</h3>
+<h3 id="derivation-40">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-43">Source</h3>
+<h3 id="source-39">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-65">Discussion</h3>
+<h3 id="discussion-64">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-65">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1558,13 +1544,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as a &lt;&lt; b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-65">Definition</h3>
+<h3 id="definition-63">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-44">Derivation</h3>
+<h3 id="derivation-41">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-44">Source</h3>
+<h3 id="source-40">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-66">Discussion</h3>
+<h3 id="discussion-65">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-66">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1573,13 +1559,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as a &lt; b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-66">Definition</h3>
+<h3 id="definition-64">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-45">Derivation</h3>
+<h3 id="derivation-42">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-45">Source</h3>
+<h3 id="source-41">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-67">Discussion</h3>
+<h3 id="discussion-66">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-67">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1588,13 +1574,13 @@
 <p>Basis Function Combinator</p>
 <p>[codireco] ccons</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-67">Definition</h3>
+<h3 id="definition-65">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-46">Derivation</h3>
+<h3 id="derivation-43">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-46">Source</h3>
+<h3 id="source-42">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-68">Discussion</h3>
+<h3 id="discussion-67">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-68">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1603,13 +1589,13 @@
 <p>Basis Function Combinator</p>
 <p>Run the quoted program on TOS on the items in the list under it, push a new list with the results in place of the program and original list.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-68">Definition</h3>
+<h3 id="definition-66">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-47">Derivation</h3>
+<h3 id="derivation-44">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-47">Source</h3>
+<h3 id="source-43">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-69">Discussion</h3>
+<h3 id="discussion-68">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-69">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1618,13 +1604,13 @@
 <p>Basis Function Combinator</p>
 <p>Given a list find the maximum.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-69">Definition</h3>
+<h3 id="definition-67">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-48">Derivation</h3>
+<h3 id="derivation-45">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-48">Source</h3>
+<h3 id="source-44">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-70">Discussion</h3>
+<h3 id="discussion-69">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-70">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1633,13 +1619,13 @@
 <p>Basis Function Combinator</p>
 <p>Given a list find the minimum.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-70">Definition</h3>
+<h3 id="definition-68">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-49">Derivation</h3>
+<h3 id="derivation-46">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-49">Source</h3>
+<h3 id="source-45">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-71">Discussion</h3>
+<h3 id="discussion-70">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-71">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1648,13 +1634,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as a % b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-71">Definition</h3>
+<h3 id="definition-69">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-50">Derivation</h3>
+<h3 id="derivation-47">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-50">Source</h3>
+<h3 id="source-46">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-72">Discussion</h3>
+<h3 id="discussion-71">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-72">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1666,13 +1652,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as a * b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-72">Definition</h3>
+<h3 id="definition-70">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-51">Derivation</h3>
+<h3 id="derivation-48">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-51">Source</h3>
+<h3 id="source-47">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-73">Discussion</h3>
+<h3 id="discussion-72">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-73">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1681,13 +1667,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as a != b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-73">Definition</h3>
+<h3 id="definition-71">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-52">Derivation</h3>
+<h3 id="derivation-49">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-52">Source</h3>
+<h3 id="source-48">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-74">Discussion</h3>
+<h3 id="discussion-73">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-74">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1696,13 +1682,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as -a.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-74">Definition</h3>
+<h3 id="definition-72">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-53">Derivation</h3>
+<h3 id="derivation-50">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-53">Source</h3>
+<h3 id="source-49">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-75">Discussion</h3>
+<h3 id="discussion-74">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-75">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1711,13 +1697,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as not a.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-75">Definition</h3>
+<h3 id="definition-73">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-54">Derivation</h3>
+<h3 id="derivation-51">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-54">Source</h3>
+<h3 id="source-50">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-76">Discussion</h3>
+<h3 id="discussion-75">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-76">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1733,20 +1719,20 @@
    N !-
 ----------  N &gt;= 0
    true</code></pre>
-<h3 id="definition-76">Definition</h3>
+<h3 id="definition-74">Definition</h3>
 <pre><code>0 &gt;=</code></pre>
 <hr />
 <h2 id="nulco">nulco</h2>
 <p>Basis Function Combinator</p>
 <p>[nullary] cons</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-77">Definition</h3>
+<h3 id="definition-75">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-55">Derivation</h3>
+<h3 id="derivation-52">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-55">Source</h3>
+<h3 id="source-51">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-77">Discussion</h3>
+<h3 id="discussion-76">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-77">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1757,16 +1743,16 @@
 <pre><code>   ... [P] nullary
 ---------------------
         ... A</code></pre>
-<h3 id="definition-78">Definition</h3>
+<h3 id="definition-76">Definition</h3>
 <pre><code>[stack] dip infra first</code></pre>
-<h3 id="derivation-56">Derivation</h3>
+<h3 id="derivation-53">Derivation</h3>
 <pre><code>... [P] nullary
 ... [P] [stack] dip infra first
 ... stack [P] infra first
 ... [...] [P] infra first
 ... [A ...] first
 ...  A</code></pre>
-<h3 id="discussion-78">Discussion</h3>
+<h3 id="discussion-77">Discussion</h3>
 <p>A very useful function that runs any other quoted function and returns it&#x2019;s first result without disturbing the stack (under the quoted program.)</p>
 <h3 id="crosslinks-78">Crosslinks</h3>
 <p><a href="#unary">unary</a> <a href="#binary">binary</a> <a href="#ternary">ternary</a></p>
@@ -1775,13 +1761,13 @@
 <p>Basis Function Combinator</p>
 <p>swap at</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-79">Definition</h3>
+<h3 id="definition-77">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-57">Derivation</h3>
+<h3 id="derivation-54">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-56">Source</h3>
+<h3 id="source-52">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-79">Discussion</h3>
+<h3 id="discussion-78">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-79">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1790,13 +1776,13 @@
 <p>Basis Function Combinator</p>
 <p>Same as a | b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-80">Definition</h3>
+<h3 id="definition-78">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-58">Derivation</h3>
+<h3 id="derivation-55">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-57">Source</h3>
+<h3 id="source-53">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-80">Discussion</h3>
+<h3 id="discussion-79">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-80">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1805,13 +1791,13 @@
 <p>Basis Function Combinator</p>
 <pre><code>(a2 a1 -- a2 a1 a2)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-81">Definition</h3>
+<h3 id="definition-79">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-59">Derivation</h3>
+<h3 id="derivation-56">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-58">Source</h3>
+<h3 id="source-54">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-81">Discussion</h3>
+<h3 id="discussion-80">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-81">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1820,13 +1806,13 @@
 <p>Basis Function Combinator</p>
 <p>[i] map</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-82">Definition</h3>
+<h3 id="definition-80">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-60">Derivation</h3>
+<h3 id="derivation-57">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-59">Source</h3>
+<h3 id="source-55">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-82">Discussion</h3>
+<h3 id="discussion-81">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-82">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1841,13 +1827,13 @@
 -------------
 a+b a-b</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-83">Definition</h3>
+<h3 id="definition-81">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-61">Derivation</h3>
+<h3 id="derivation-58">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-60">Source</h3>
+<h3 id="source-56">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-83">Discussion</h3>
+<h3 id="discussion-82">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-83">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1856,13 +1842,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(a1 --)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-84">Definition</h3>
+<h3 id="definition-82">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-62">Derivation</h3>
+<h3 id="derivation-59">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-61">Source</h3>
+<h3 id="source-57">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-84">Discussion</h3>
+<h3 id="discussion-83">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-84">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1871,13 +1857,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(a2 a1 -- a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-85">Definition</h3>
+<h3 id="definition-83">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-63">Derivation</h3>
+<h3 id="derivation-60">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-62">Source</h3>
+<h3 id="source-58">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-85">Discussion</h3>
+<h3 id="discussion-84">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-85">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1886,13 +1872,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(a3 a2 a1 -- a2 a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-86">Definition</h3>
+<h3 id="definition-84">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-64">Derivation</h3>
+<h3 id="derivation-61">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-63">Source</h3>
+<h3 id="source-59">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-86">Discussion</h3>
+<h3 id="discussion-85">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-86">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1901,13 +1887,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(a2 a1 --)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-87">Definition</h3>
+<h3 id="definition-85">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-65">Derivation</h3>
+<h3 id="derivation-62">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-64">Source</h3>
+<h3 id="source-60">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-87">Discussion</h3>
+<h3 id="discussion-86">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-87">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1916,13 +1902,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(a3 a2 a1 -- a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-88">Definition</h3>
+<h3 id="definition-86">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-66">Derivation</h3>
+<h3 id="derivation-63">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-65">Source</h3>
+<h3 id="source-61">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-88">Discussion</h3>
+<h3 id="discussion-87">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-88">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1931,13 +1917,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(a4 a3 a2 a1 -- a2 a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-89">Definition</h3>
+<h3 id="definition-87">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-67">Derivation</h3>
+<h3 id="derivation-64">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-66">Source</h3>
+<h3 id="source-62">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-89">Discussion</h3>
+<h3 id="discussion-88">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-89">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1946,13 +1932,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>pop popop</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-90">Definition</h3>
+<h3 id="definition-88">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-68">Derivation</h3>
+<h3 id="derivation-65">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-67">Source</h3>
+<h3 id="source-63">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-90">Discussion</h3>
+<h3 id="discussion-89">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-90">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1961,13 +1947,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Same as a ** b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-91">Definition</h3>
+<h3 id="definition-89">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-69">Derivation</h3>
+<h3 id="derivation-66">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-68">Source</h3>
+<h3 id="source-64">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-91">Discussion</h3>
+<h3 id="discussion-90">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-91">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -1976,13 +1962,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Decrement TOS.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-92">Definition</h3>
+<h3 id="definition-90">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-70">Derivation</h3>
+<h3 id="derivation-67">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-69">Source</h3>
+<h3 id="source-65">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-92">Discussion</h3>
+<h3 id="discussion-91">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-92">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2003,13 +1989,13 @@ a+b a-b</code></pre>
 ------------------------------------------ n &gt; 0
    n (n-1) [Base] [Recur] primrec Recur</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-93">Definition</h3>
+<h3 id="definition-91">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-71">Derivation</h3>
+<h3 id="derivation-68">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-70">Source</h3>
+<h3 id="source-66">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-93">Discussion</h3>
+<h3 id="discussion-92">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-93">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2018,13 +2004,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>1 swap [*] step</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-94">Definition</h3>
+<h3 id="definition-92">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-72">Derivation</h3>
+<h3 id="derivation-69">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-71">Source</h3>
+<h3 id="source-67">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-94">Discussion</h3>
+<h3 id="discussion-93">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-94">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2033,13 +2019,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>[unit] dip</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-95">Definition</h3>
+<h3 id="definition-93">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-73">Derivation</h3>
+<h3 id="derivation-70">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-72">Source</h3>
+<h3 id="source-68">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-95">Discussion</h3>
+<h3 id="discussion-94">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-95">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2048,13 +2034,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>[0 &lt;=] [1 - dup] anamorphism</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-96">Definition</h3>
+<h3 id="definition-94">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-74">Derivation</h3>
+<h3 id="derivation-71">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-73">Source</h3>
+<h3 id="source-69">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-96">Discussion</h3>
+<h3 id="discussion-95">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-96">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2063,13 +2049,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>unit [down_to_zero] infra</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-97">Definition</h3>
+<h3 id="definition-95">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-75">Derivation</h3>
+<h3 id="derivation-72">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-74">Source</h3>
+<h3 id="source-70">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-97">Discussion</h3>
+<h3 id="discussion-96">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-97">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2078,13 +2064,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>rest cons</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-98">Definition</h3>
+<h3 id="definition-96">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-76">Derivation</h3>
+<h3 id="derivation-73">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-75">Source</h3>
+<h3 id="source-71">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-98">Discussion</h3>
+<h3 id="discussion-97">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-98">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2102,13 +2088,13 @@ a+b a-b</code></pre>
 ------------------------
   [2 3 1]</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-99">Definition</h3>
+<h3 id="definition-97">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-77">Derivation</h3>
+<h3 id="derivation-74">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-76">Source</h3>
+<h3 id="source-72">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-99">Discussion</h3>
+<h3 id="discussion-98">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-99">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2117,13 +2103,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>([a1 ...0] -- [...0])</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-100">Definition</h3>
+<h3 id="definition-98">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-78">Derivation</h3>
+<h3 id="derivation-75">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-77">Source</h3>
+<h3 id="source-73">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-100">Discussion</h3>
+<h3 id="discussion-99">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-100">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2133,13 +2119,13 @@ a+b a-b</code></pre>
 <p>Reverse the list on the top of the stack. :</p>
 <pre><code>reverse == [] swap shunt</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-101">Definition</h3>
+<h3 id="definition-99">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-79">Derivation</h3>
+<h3 id="derivation-76">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-78">Source</h3>
+<h3 id="source-74">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-101">Discussion</h3>
+<h3 id="discussion-100">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-101">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2148,13 +2134,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(a1 a2 a3 -- a2 a3 a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-102">Definition</h3>
+<h3 id="definition-100">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-80">Derivation</h3>
+<h3 id="derivation-77">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-79">Source</h3>
+<h3 id="source-75">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-102">Discussion</h3>
+<h3 id="discussion-101">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-102">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2163,13 +2149,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(a1 a2 a3 -- a3 a1 a2)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-103">Definition</h3>
+<h3 id="definition-101">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-81">Derivation</h3>
+<h3 id="derivation-78">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-80">Source</h3>
+<h3 id="source-76">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-103">Discussion</h3>
+<h3 id="discussion-102">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-103">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2185,13 +2171,13 @@ a+b a-b</code></pre>
 <p>Round a number to a given precision in decimal digits.</p>
 <p>The return value is an integer if ndigits is omitted or None. Otherwise the return value has the same type as the number. ndigits may be negative.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-104">Definition</h3>
+<h3 id="definition-102">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-82">Derivation</h3>
+<h3 id="derivation-79">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-81">Source</h3>
+<h3 id="source-77">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-104">Discussion</h3>
+<h3 id="discussion-103">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-104">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2200,13 +2186,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>([a1 a2 ...1] -- [...1])</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-105">Definition</h3>
+<h3 id="definition-103">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-83">Derivation</h3>
+<h3 id="derivation-80">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-82">Source</h3>
+<h3 id="source-78">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-105">Discussion</h3>
+<h3 id="discussion-104">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-105">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2215,13 +2201,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Same as a &gt;&gt; b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-106">Definition</h3>
+<h3 id="definition-104">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-84">Derivation</h3>
+<h3 id="derivation-81">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-83">Source</h3>
+<h3 id="source-79">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-106">Discussion</h3>
+<h3 id="discussion-105">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-106">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2230,13 +2216,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>&lt;{} infra</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-107">Definition</h3>
+<h3 id="definition-105">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-85">Derivation</h3>
+<h3 id="derivation-82">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-84">Source</h3>
+<h3 id="source-80">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-107">Discussion</h3>
+<h3 id="discussion-106">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-107">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2245,13 +2231,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>([a1 a2 ...1] -- a2)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-108">Definition</h3>
+<h3 id="definition-106">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-86">Derivation</h3>
+<h3 id="derivation-83">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-85">Source</h3>
+<h3 id="source-81">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-108">Discussion</h3>
+<h3 id="discussion-107">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-108">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2269,13 +2255,13 @@ a+b a-b</code></pre>
    B</code></pre>
 <p>The sequence can contain more than two items but not fewer. Currently Python semantics are used to evaluate the "truthiness" of the Boolean value (so empty string, zero, etc. are counted as false, etc.)</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-109">Definition</h3>
+<h3 id="definition-107">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-87">Derivation</h3>
+<h3 id="derivation-84">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-86">Source</h3>
+<h3 id="source-82">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-109">Discussion</h3>
+<h3 id="discussion-108">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-109">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2284,13 +2270,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Print redistribution information.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-110">Definition</h3>
+<h3 id="definition-108">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-88">Derivation</h3>
+<h3 id="derivation-85">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-87">Source</h3>
+<h3 id="source-83">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-110">Discussion</h3>
+<h3 id="discussion-109">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-110">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2299,13 +2285,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>uncons [swons] dip</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-111">Definition</h3>
+<h3 id="definition-109">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-89">Derivation</h3>
+<h3 id="derivation-86">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-88">Source</h3>
+<h3 id="source-84">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-111">Discussion</h3>
+<h3 id="discussion-110">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-111">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2319,13 +2305,13 @@ a+b a-b</code></pre>
 ---------------------------
        [f e d a b c] </code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-112">Definition</h3>
+<h3 id="definition-110">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-90">Derivation</h3>
+<h3 id="derivation-87">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-89">Source</h3>
+<h3 id="source-85">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-112">Discussion</h3>
+<h3 id="discussion-111">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-112">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2334,13 +2320,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>[pop ++] step_zero</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-113">Definition</h3>
+<h3 id="definition-111">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-91">Derivation</h3>
+<h3 id="derivation-88">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-90">Source</h3>
+<h3 id="source-86">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-113">Discussion</h3>
+<h3 id="discussion-112">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-113">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2349,13 +2335,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Given a list return it sorted.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-114">Definition</h3>
+<h3 id="definition-112">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-92">Derivation</h3>
+<h3 id="derivation-89">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-91">Source</h3>
+<h3 id="source-87">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-114">Discussion</h3>
+<h3 id="discussion-113">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-114">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2364,13 +2350,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>[[[abs] ii &lt;=] [[&lt;&gt;] [pop !-] ||] &amp;&amp;] [[!-] [[++]] [[--]] ifte dip] [[pop !-] [--] [++] ifte] ifte</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-115">Definition</h3>
+<h3 id="definition-113">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-93">Derivation</h3>
+<h3 id="derivation-90">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-92">Source</h3>
+<h3 id="source-88">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-115">Discussion</h3>
+<h3 id="discussion-114">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-115">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2379,13 +2365,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>[drop] [take] clop</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-116">Definition</h3>
+<h3 id="definition-114">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-94">Derivation</h3>
+<h3 id="derivation-91">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-93">Source</h3>
+<h3 id="source-89">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-116">Discussion</h3>
+<h3 id="discussion-115">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-116">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2394,13 +2380,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>[take reverse] [drop] clop</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-117">Definition</h3>
+<h3 id="definition-115">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-95">Derivation</h3>
+<h3 id="derivation-92">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-94">Source</h3>
+<h3 id="source-90">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-117">Discussion</h3>
+<h3 id="discussion-116">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-117">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2409,13 +2395,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>dup *</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-118">Definition</h3>
+<h3 id="definition-116">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-96">Derivation</h3>
+<h3 id="derivation-93">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-95">Source</h3>
+<h3 id="source-91">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-118">Discussion</h3>
+<h3 id="discussion-117">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-118">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2424,13 +2410,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Return the square root of the number a. Negative numbers return complex roots.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-119">Definition</h3>
+<h3 id="definition-117">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-97">Derivation</h3>
+<h3 id="derivation-94">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-96">Source</h3>
+<h3 id="source-92">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-119">Discussion</h3>
+<h3 id="discussion-118">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-119">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2439,13 +2425,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(... -- ... [...])</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-120">Definition</h3>
+<h3 id="definition-118">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-98">Derivation</h3>
+<h3 id="derivation-95">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-97">Source</h3>
+<h3 id="source-93">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-120">Discussion</h3>
+<h3 id="discussion-119">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-120">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2454,13 +2440,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>[stack] dip</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-121">Definition</h3>
+<h3 id="definition-119">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-99">Derivation</h3>
+<h3 id="derivation-96">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-98">Source</h3>
+<h3 id="source-94">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-121">Discussion</h3>
+<h3 id="discussion-120">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-121">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2483,13 +2469,13 @@ a+b a-b</code></pre>
       ... a . Q [b c] [Q] step</code></pre>
 <p>The step combinator executes the quotation on each member of the list on top of the stack.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-122">Definition</h3>
+<h3 id="definition-120">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-100">Derivation</h3>
+<h3 id="derivation-97">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-99">Source</h3>
+<h3 id="source-95">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-122">Discussion</h3>
+<h3 id="discussion-121">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-122">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2498,13 +2484,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>0 roll&gt; step</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-123">Definition</h3>
+<h3 id="definition-121">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-101">Derivation</h3>
+<h3 id="derivation-98">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-100">Source</h3>
+<h3 id="source-96">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-123">Discussion</h3>
+<h3 id="discussion-122">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-123">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2513,13 +2499,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(... a1 -- ... a1 a1 [...])</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-124">Definition</h3>
+<h3 id="definition-122">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-102">Derivation</h3>
+<h3 id="derivation-99">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-101">Source</h3>
+<h3 id="source-97">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-124">Discussion</h3>
+<h3 id="discussion-123">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-124">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2528,13 +2514,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(... a2 a1 -- ... a2 a1 a1 a2 [...])</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-125">Definition</h3>
+<h3 id="definition-123">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-103">Derivation</h3>
+<h3 id="derivation-100">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-102">Source</h3>
+<h3 id="source-98">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-125">Discussion</h3>
+<h3 id="discussion-124">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-125">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2543,13 +2529,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Same as a - b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-126">Definition</h3>
+<h3 id="definition-124">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-104">Derivation</h3>
+<h3 id="derivation-101">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-103">Source</h3>
+<h3 id="source-99">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-126">Discussion</h3>
+<h3 id="discussion-125">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-126">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2558,13 +2544,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Increment TOS.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-127">Definition</h3>
+<h3 id="definition-125">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-105">Derivation</h3>
+<h3 id="derivation-102">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-104">Source</h3>
+<h3 id="source-100">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-127">Discussion</h3>
+<h3 id="discussion-126">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-127">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2574,13 +2560,13 @@ a+b a-b</code></pre>
 <p>Given a quoted sequence of numbers return the sum. :</p>
 <pre><code>sum == 0 swap [+] step</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-128">Definition</h3>
+<h3 id="definition-126">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-106">Derivation</h3>
+<h3 id="derivation-103">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-105">Source</h3>
+<h3 id="source-101">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-128">Discussion</h3>
+<h3 id="discussion-127">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-128">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2589,13 +2575,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>([...1] -- [...0])</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-129">Definition</h3>
+<h3 id="definition-127">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-107">Derivation</h3>
+<h3 id="derivation-104">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-106">Source</h3>
+<h3 id="source-102">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-129">Discussion</h3>
+<h3 id="discussion-128">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-129">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2604,13 +2590,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(a1 a2 -- a2 a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-130">Definition</h3>
+<h3 id="definition-128">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-108">Derivation</h3>
+<h3 id="derivation-105">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-107">Source</h3>
+<h3 id="source-103">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-130">Discussion</h3>
+<h3 id="discussion-129">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-130">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2619,13 +2605,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>[swap] dip</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-131">Definition</h3>
+<h3 id="definition-129">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-109">Derivation</h3>
+<h3 id="derivation-106">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-108">Source</h3>
+<h3 id="source-104">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-131">Discussion</h3>
+<h3 id="discussion-130">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-131">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2634,13 +2620,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>swap concat</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-132">Definition</h3>
+<h3 id="definition-130">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-110">Derivation</h3>
+<h3 id="derivation-107">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-109">Source</h3>
+<h3 id="source-105">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-132">Discussion</h3>
+<h3 id="discussion-131">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-132">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2649,13 +2635,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>([...1] a1 -- [a1 ...1])</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-133">Definition</h3>
+<h3 id="definition-131">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-111">Derivation</h3>
+<h3 id="derivation-108">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-110">Source</h3>
+<h3 id="source-106">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-133">Discussion</h3>
+<h3 id="discussion-132">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-133">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2664,13 +2650,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>[i] genrec</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-134">Definition</h3>
+<h3 id="definition-132">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-112">Derivation</h3>
+<h3 id="derivation-109">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-111">Source</h3>
+<h3 id="source-107">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-134">Discussion</h3>
+<h3 id="discussion-133">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-134">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2682,13 +2668,13 @@ a+b a-b</code></pre>
 ----------------------
     [b a]</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-135">Definition</h3>
+<h3 id="definition-133">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-113">Derivation</h3>
+<h3 id="derivation-110">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-112">Source</h3>
+<h3 id="source-108">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-135">Discussion</h3>
+<h3 id="discussion-134">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-135">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2699,9 +2685,9 @@ a+b a-b</code></pre>
 <pre><code>   ... z y x [P] unary
 -------------------------
          ... A</code></pre>
-<h3 id="definition-136">Definition</h3>
+<h3 id="definition-134">Definition</h3>
 <pre><code>binary popd</code></pre>
-<h3 id="discussion-136">Discussion</h3>
+<h3 id="discussion-135">Discussion</h3>
 <p>Runs any other quoted function and returns its first result while consuming exactly three items from the stack.</p>
 <h3 id="crosslinks-136">Crosslinks</h3>
 <p><a href="#binary">binary</a> <a href="#nullary">nullary</a> <a href="#unary">unary</a></p>
@@ -2710,13 +2696,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>([a1 a2 a3 ...1] -- a3)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-137">Definition</h3>
+<h3 id="definition-135">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-114">Derivation</h3>
+<h3 id="derivation-111">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-113">Source</h3>
+<h3 id="source-109">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-137">Discussion</h3>
+<h3 id="discussion-136">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-137">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2738,13 +2724,13 @@ a+b a-b</code></pre>
 -------------------------------------  w/ n &gt; 1
   ... . Q (n - 1) [Q] times</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-138">Definition</h3>
+<h3 id="definition-136">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-115">Derivation</h3>
+<h3 id="derivation-112">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-114">Source</h3>
+<h3 id="source-110">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-138">Discussion</h3>
+<h3 id="discussion-137">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-138">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2756,13 +2742,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(a2 a1 -- a1 a2 a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-139">Definition</h3>
+<h3 id="definition-137">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-116">Derivation</h3>
+<h3 id="derivation-113">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-115">Source</h3>
+<h3 id="source-111">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-139">Discussion</h3>
+<h3 id="discussion-138">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-139">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2773,9 +2759,9 @@ a+b a-b</code></pre>
 <pre><code>   ... x [P] unary
 ---------------------
        ... A</code></pre>
-<h3 id="definition-140">Definition</h3>
+<h3 id="definition-138">Definition</h3>
 <pre><code>nullary popd</code></pre>
-<h3 id="discussion-140">Discussion</h3>
+<h3 id="discussion-139">Discussion</h3>
 <p>Runs any other quoted function and returns its first result while consuming exactly one item from the stack.</p>
 <h3 id="crosslinks-140">Crosslinks</h3>
 <p><a href="#binary">binary</a> <a href="#nullary">nullary</a> <a href="#ternary">ternary</a></p>
@@ -2786,9 +2772,9 @@ a+b a-b</code></pre>
 <pre><code>   [A ...] uncons
 --------------------
       A [...]</code></pre>
-<h3 id="source-116">Source</h3>
+<h3 id="source-112">Source</h3>
 <pre><code>func(uncons, Si, So) :- func(cons, So, Si).</code></pre>
-<h3 id="discussion-141">Discussion</h3>
+<h3 id="discussion-140">Discussion</h3>
 <p>This is the inverse of <code>cons</code>.</p>
 <h3 id="crosslinks-141">Crosslinks</h3>
 <p><a href="#cons">cons</a></p>
@@ -2797,13 +2783,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Given a list remove duplicate items.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-141">Definition</h3>
+<h3 id="definition-139">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-117">Derivation</h3>
+<h3 id="derivation-114">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-117">Source</h3>
+<h3 id="source-113">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-142">Discussion</h3>
+<h3 id="discussion-141">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-142">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2812,13 +2798,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>(a1 -- [a1 ])</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-142">Definition</h3>
+<h3 id="definition-140">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-118">Derivation</h3>
+<h3 id="derivation-115">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-118">Source</h3>
+<h3 id="source-114">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-143">Discussion</h3>
+<h3 id="discussion-142">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-143">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2827,13 +2813,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>[i] dip</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-143">Definition</h3>
+<h3 id="definition-141">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-119">Derivation</h3>
+<h3 id="derivation-116">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-119">Source</h3>
+<h3 id="source-115">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-144">Discussion</h3>
+<h3 id="discussion-143">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-144">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2842,13 +2828,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <pre><code>([a1 ...1] -- [...1] a1)</code></pre>
 <p>Gentzen diagram.</p>
-<h3 id="definition-144">Definition</h3>
+<h3 id="definition-142">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-120">Derivation</h3>
+<h3 id="derivation-117">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-120">Source</h3>
+<h3 id="source-116">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-145">Discussion</h3>
+<h3 id="discussion-144">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-145">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2857,13 +2843,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>True if the form on TOS is void otherwise False.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-145">Definition</h3>
+<h3 id="definition-143">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-121">Derivation</h3>
+<h3 id="derivation-118">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-121">Source</h3>
+<h3 id="source-117">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-146">Discussion</h3>
+<h3 id="discussion-145">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-146">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2872,13 +2858,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Print warranty information.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-146">Definition</h3>
+<h3 id="definition-144">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-122">Derivation</h3>
+<h3 id="derivation-119">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-122">Source</h3>
+<h3 id="source-118">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-147">Discussion</h3>
+<h3 id="discussion-146">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-147">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2887,13 +2873,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>swap nulco dupdipd concat loop</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-147">Definition</h3>
+<h3 id="definition-145">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-123">Derivation</h3>
+<h3 id="derivation-120">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-123">Source</h3>
+<h3 id="source-119">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-148">Discussion</h3>
+<h3 id="discussion-147">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-148">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2902,13 +2888,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Print all the words in alphabetical order.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-148">Definition</h3>
+<h3 id="definition-146">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-124">Derivation</h3>
+<h3 id="derivation-121">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-124">Source</h3>
+<h3 id="source-120">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-149">Discussion</h3>
+<h3 id="discussion-148">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-149">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2918,22 +2904,22 @@ a+b a-b</code></pre>
 <pre><code>   [F] x
 -----------
    [F] F</code></pre>
-<h3 id="definition-149">Definition</h3>
+<h3 id="definition-147">Definition</h3>
 <pre><code>dup i</code></pre>
-<h3 id="discussion-150">Discussion</h3>
+<h3 id="discussion-149">Discussion</h3>
 <p>The <code>x</code> combinator &#x2026;</p>
 <hr />
 <h2 id="xor">xor</h2>
 <p>Basis Function Combinator</p>
 <p>Same as a ^ b.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-150">Definition</h3>
+<h3 id="definition-148">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-125">Derivation</h3>
+<h3 id="derivation-122">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-125">Source</h3>
+<h3 id="source-121">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-151">Discussion</h3>
+<h3 id="discussion-150">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-150">Crosslinks</h3>
 <p>Lorem ipsum.</p>
@@ -2942,13 +2928,13 @@ a+b a-b</code></pre>
 <p>Basis Function Combinator</p>
 <p>Replace the two lists on the top of the stack with a list of the pairs from each list. The smallest list sets the length of the result list.</p>
 <p>Gentzen diagram.</p>
-<h3 id="definition-151">Definition</h3>
+<h3 id="definition-149">Definition</h3>
 <p>if not basis.</p>
-<h3 id="derivation-126">Derivation</h3>
+<h3 id="derivation-123">Derivation</h3>
 <p>if not basis.</p>
-<h3 id="source-126">Source</h3>
+<h3 id="source-122">Source</h3>
 <p>if basis</p>
-<h3 id="discussion-152">Discussion</h3>
+<h3 id="discussion-151">Discussion</h3>
 <p>Lorem ipsum.</p>
 <h3 id="crosslinks-151">Crosslinks</h3>
 <p>Lorem ipsum.</p>
diff --git a/docs/reference/mkref/Functor-Reference.md b/docs/reference/mkref/Functor-Reference.md
index 64ec5c2..4e9d47e 100644
--- a/docs/reference/mkref/Functor-Reference.md
+++ b/docs/reference/mkref/Functor-Reference.md
@@ -895,133 +895,118 @@ useful in a few places.
 
 ## codireco
 
-Basis Function Combinator
+Combinator
 
-codi reco
-
-Gentzen diagram.
+This is part of the [make_generator] function.  You would not use this
+combinator directly.
 
 ### Definition
 
-if not basis.
-
-### Derivation
-
-if not basis.
-
-### Source
-
-if basis
+> [codi] [reco]
 
 ### Discussion
 
-Lorem ipsum.
+See [make_generator] and the 
+["Using `x` to Generate Values" notebook](https://joypy.osdn.io/notebooks/Generator_Programs.html#an-interesting-variation)
+as well as
+[Recursion Theory and Joy](https://www.kevinalbrecht.com/code/joy-mirror/j05cmp.html) by Manfred von Thun.
 
 ### Crosslinks
 
-Lorem ipsum.
+[make_generator]
+
 
 ------------------------------------------------------------------------
 
 ## concat
 
-Basis Function Combinator
+Function
 
-Concatinate the two lists on the top of the stack. :
+Concatinate two lists.
 
-    [a b c] [d e f] concat
+       [a b c] [d e f] concat
     ----------------------------
-        [a b c d e f]
-
-Gentzen diagram.
-
-### Definition
-
-if not basis.
-
-### Derivation
-
-if not basis.
-
-### Source
-
-if basis
-
-### Discussion
-
-Lorem ipsum.
+           [a b c d e f]
 
 ### Crosslinks
 
-Lorem ipsum.
+[first]
+[first_two]
+[flatten]
+[fourth]
+[getitem]
+[remove]
+[rest]
+[reverse]
+[rrest]
+[second]
+[shift]
+[shunt]
+[size]
+[sort]
+[split_at]
+[split_list]
+[swaack]
+[third]
+[zip]
+
 
 ------------------------------------------------------------------------
 
 ## cond
 
-Basis Function Combinator
+Combinator
 
 This combinator works like a case statement. It expects a single quote
 on the stack that must contain zero or more condition quotes and a
-default quote. Each condition clause should contain a quoted predicate
+default quote. Each condition quote should contain a quoted predicate
 followed by the function expression to run if that predicate returns
-true. If no predicates return true the default function runs.
+`true`. If no predicates return `true` the default function runs.
+
+    [
+        [ [Predicate0] Function0 ]
+        [ [Predicate1] Function1 ]
+        ...
+        [ [PredicateN] FunctionN ]
+        [Default]
+    ]
+    cond
+
+### Discussion
 
 It works by rewriting into a chain of nested [ifte]{.title-ref}
 expressions, e.g.:
 
-    [[[B0] T0] [[B1] T1] [D]] cond
+          [[[B0] T0] [[B1] T1] [D]] cond
     -----------------------------------------
-    [B0] [T0] [[B1] [T1] [D] ifte] ifte
+       [B0] [T0] [[B1] [T1] [D] ifte] ifte
 
-Gentzen diagram.
-
-### Definition
-
-if not basis.
-
-### Derivation
-
-if not basis.
-
-### Source
-
-if basis
-
-### Discussion
-
-Lorem ipsum.
 
 ### Crosslinks
 
-Lorem ipsum.
+[ifte]
+
 
 --------------------
 
 ## cons
 
-(Basis Function)
+Basis Function
 
 Given an item and a list, append the item to the list to make a new list.
 
-       A [...] cons
+       a [...] cons
     ------------------
-         [A ...]
-
-### Source
-
-    func(cons, [list(A), B|S], [list([B|A])|S]).
+         [a ...]
 
 ### Discussion
 
-Cons is a venerable old function from Lisp.  It doesn't inspect the item
-but it will not cons onto a non-list.  It's inverse operation is called
-`uncons`.
+Cons is a [venerable old function from Lisp](https://en.wikipedia.org/wiki/Cons#Lists).
+Its inverse operation is [uncons].
 
 ### Crosslinks
 
-[ccons](#ccons)
-[uncons](#uncons)
+[uncons]
 
 
 ------------------------------------------------------------------------