view wisdom/lambek's lemma @ 12329:23c487fea86d draft

<b_jonas> ` rm -v /hackenv/stuff
author HackEso <hackeso@esolangs.org>
date Fri, 01 May 2020 23:20:41 +0000
parents d3a12978331a
children
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Lambek's Lemma, invented by Joachim "Taneb" Lambek, states that initial algebras have inverses. It can be proved with as few as five arrows.