view wisdom/lambek's lemma @ 12470:71a8d7ee2045 draft

<int-e> learn UML is short for "Umlaut". It powers H\xc3\xa4ckes\xc3\xb6.
author HackEso <hackeso@esolangs.org>
date Fri, 13 Jan 2023 02:06:12 +0000
parents d3a12978331a
children
line wrap: on
line source

Lambek's Lemma, invented by Joachim "Taneb" Lambek, states that initial algebras have inverses. It can be proved with as few as five arrows.