view wisdom/lambek's lemma @ 11331:a7f50f1f75f7

<wob_jonas> perl -e open$h,"<",($f="wisdom/font");local$/;$_=<$h>; s"& \\S+/twitter\\.com/\\S+""; if (1) { open $o,">",$f;print$o $_; } print;
author HackBot
date Wed, 17 Jan 2018 21:03:18 +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.