view wisdom/lambek's lemma @ 12259:5d86806a2603 draft

<int-e> mkx ../bin/"//\\`^ 2 "quote${1:+ }$1"
author HackEso <hackeso@esolangs.org>
date Sat, 07 Dec 2019 23:54:29 +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.