view wisdom/lambek's lemma @ 12481:04e80d56b9e5 draft

<b_jonas> slashlearn kitten//The kittens game is "https://kittensgame.com/", an addictive game that went viral for a short time on #esolangs in 2023-01.
author HackEso <hackeso@esolangs.org>
date Tue, 16 May 2023 20:27:56 +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.