From a15ea2d3552d06d08295ad9cbb443cb92117d5d7 Mon Sep 17 00:00:00 2001
From: sforman <sforman@hushmail.com>
Date: Thu, 10 Aug 2023 21:45:40 -0700
Subject: [PATCH] It's more efficient to concat the empty list

than to concate a non-empty list onto the empty list.
---
 implementations/defs.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/implementations/defs.txt b/implementations/defs.txt
index 6702daf..f85e92a 100644
--- a/implementations/defs.txt
+++ b/implementations/defs.txt
@@ -61,7 +61,7 @@ mod %
 neg 0 swap -
 not [true] [false] branch
 nulco [nullary] cons
-null [] concat bool not
+null [] swap concat bool not
 nullary [stack] dinfrirst
 of swap at
 over [dup] dip swap