view wisdom/lambek's lemma @ 11280:3c005411c086

<oerjan> slwd tanebventions: food//s/mushrooms/mushrooms, nutella/
author HackBot
date Tue, 19 Dec 2017 21:00:25 +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.