view wisdom/lambek's lemma @ 11243:5c41fb3f6567

<oerjan> # Stolen from Roger9//`learn Bureaucracy (from French bureau, "burrow") is a political system in which squirrels rule the nation, and burrow their nuts.
author HackBot
date Wed, 22 Nov 2017 00:43:46 +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.