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Start with increment and decrement:

    -- ≡ 1 -
    ++ ≡ 1 +

Common symbols for operations:

    = ≡ eq
    + ≡ add
    > ≡ gt
    < ≡ lt
    >= ≡ ge
    <= ≡ le
    != ≡ ne
    <> ≡ ne

    % ≡ mod
    + ≡ add
    - ≡ sub
    * ≡ mul
    / ≡ floordiv
    div ≡ floordiv

    & ≡ and
    | ≡ or
    ! ≡ not

    << ≡ lshift
    >> ≡ rshift


• ≡


? ≡ dup bool


&& ≡ nulco [nullary [false]] dip branch
|| ≡ nulco [nullary] dip [true] branch


!- ≡ 0 >=

<{} ≡ [] swap
<<{} ≡ [] rollup

abs ≡ dup 0 < [] [neg] branch

anamorphism ≡ [pop []] swap [dip swons] genrec

app1 ≡ grba infrst
app2 ≡ [grba swap grba swap] dip [infrst] cons ii
app3 ≡ 3 appN
appN ≡ [grabN] codi map reverse disenstacken

at ≡ drop first

b ≡ [i] dip i
dipd ≡ [dip] codi
genrec ≡ [[genrec] ccccons] nullary swons concat ifte
tailrec ≡ [i] genrec
ifte ≡ [nullary] dipd swap branch
ii ≡ [dip] dupdip i
infra ≡ swons swaack [i] dip swaack
x ≡ dup i
pam ≡ [i] map


    nullary ≡ [stack] dip infra first
    unary ≡ nullary popd
    binary ≡ unary popd
    ternary ≡ binary popd

ccccons ≡ ccons ccons
ccons ≡ cons cons

clear ≡ [] swaack pop

cleave ≡ fork popdd
clop ≡ cleave popdd
fork ≡ [i] app2

cmp ≡ [[>] swap] dipd [ifte] ccons [=] swons ifte

codi ≡ cons dip
codireco ≡ codi reco

dinfrirst ≡ dip infrst


disenstacken ≡ ? [uncons ?] loop pop
enstacken ≡ stack [clear] dip

down_to_zero ≡ [0 >] [dup --] while

drop ≡ [rest] times

dupd ≡ [dup] dip
dupdd ≡ [dup] dipd
dupdip ≡ dupd dip
dupdipd ≡ dup dipd


      rest ≡ uncons popd
     first ≡ uncons pop
    second ≡ rest first
     third ≡ rest second
    fourth ≡ rest third


flatten ≡ <{} [concat] step

gcd ≡ true [tuck mod dup 0 >] loop pop


grabN ≡ <{} [cons] times
grba ≡ [stack popd] dip

hypot [sqr] ii + sqrt

infrst ≡ infra first

make_generator ≡ [codireco] ccons

manual ≡ [] words [help] step pop

neg ≡ 0 swap -
not ≡ [true] [false] branch

nulco ≡ [nullary] cons
of ≡ swap at

over ≡ [dup] dip swap

pm ≡ [+] [-] clop

popd ≡ [pop] dip
popdd ≡ [pop] dipd
popop ≡ pop pop
popopop ≡ pop popop
popopd ≡ [popop] dip
popopdd ≡ [popop] dipd

product ≡ 1 swap [*] step

quoted ≡ [unit] dip

range ≡ [0 <=] [1 - dup] anamorphism
range_to_zero ≡ unit [down_to_zero] infra

reco ≡ rest cons


reverse ≡ <{} shunt

roll> ≡ swap swapd
roll< ≡ swapd swap
rollup ≡ roll>
rolldown roll<

rrest ≡ rest rest

run ≡ <{} infra
shift ≡ uncons [swons] dip
shunt ≡ [swons] step
size ≡ [pop ++] step_zero
spiral_next ≡ [[[abs] ii <=] [[<>] [pop !-] ||] &&] [[!-] [[++]] [[--]] ifte dip] [[pop !-] [--] [++] ifte] ifte
split_at ≡ [drop] [take] clop
split_list ≡ [take reverse] [drop] clop
sqr ≡ dup *
stackd ≡ [stack] dip
step_zero ≡ 0 roll> step
stuncons ≡ stack uncons
sum ≡ [+] step_zero
swapd ≡ [swap] dip
swons ≡ swap cons
swoncat ≡ swap concat
sqr ≡ dup mul
take ≡ <<{} [shift] times pop
tuck ≡ dup swapd
uncons ≡ [first] [rest] cleave
unit ≡ [] cons
unquoted ≡ [i] dip
unswons ≡ uncons swap
while ≡ swap nulco dupdipd concat loop

step ≡ [_step0] x
_step0 ≡ _step1 [popopop] [_stept] branch
_step1 ≡ [?] dipd roll<
_stept ≡ [uncons] dipd [dupdipd] dip x

times ≡ [_times0] x
_times0 ≡ _times1 [popopop] [_timest] branch
_times1 ≡ [dup 0 >] dipd roll<
_timest ≡ [[--] dip dupdipd] dip x

map ≡ [_map0] cons [[] [_map?] [_mape]] dip tailrec
_map? ≡ pop bool not
_mape ≡ popd reverse
_map0 ≡ [_map1] dipd _map2
_map1 ≡ stackd shift
_map2 ≡ [infrst] cons dipd roll< swons