view wisdom/lambek's lemma @ 11191:68bceb27eddd

<shachaf> le////rn `2017//Not confusingly not the obvious generalization of `1.
author HackBot
date Fri, 15 Sep 2017 01:53:07 +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.