Mercurial > repo

view wisdom/lambek's lemma @ 11266:d0b0045333a6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
<oerjan> learn_append A test is a test, in jest, in jest.
author HackBot
date Tue, 12 Dec 2017 22:00:50 +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.