annotate wisdom/lambek's lemma @ 12137:db60ce0f0bb3 draft

<b_jonas> fetch /hackenv/bin/uptime https://hack.esolangs.org/get/bin/uptime
author HackEso <hackeso@esolangs.org>
date Sun, 17 Nov 2019 19:16:20 +0000
parents d3a12978331a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10491
d3a12978331a <shachaf> le/rn_append lambek\'s lemma//It can be proved with as few as five arrows.
HackBot
parents: 8401
diff changeset
1 Lambek's Lemma, invented by Joachim "Taneb" Lambek, states that initial algebras have inverses. It can be proved with as few as five arrows.