view wisdom/lambek's lemma @ 11216:b1dbfb6bf061

<b_jonas> `` cd share/mtg && <MagicCompRules-20170925.txt tr -d \\\\r | iconv -f cp1252 -t utf8 > rules.txt
author HackBot
date Wed, 04 Oct 2017 11:40:50 +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.