view wisdom/lambek's lemma @ 11442:e5fc980ee1e8

<wob_jonas> slashlearn A//A is one of seven villages in Norway. The BBC invented them by not understanding things on top of letters.
author HackBot
date Mon, 05 Mar 2018 22:24:39 +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.