view wisdom/lambek's lemma @ 10923:025d446d79cc

<oerjan> sled bin/sport//s,[\'],,g
author HackBot
date Sat, 20 May 2017 05:44:54 +0000
parents d3a12978331a
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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.