view wisdom/lambek's lemma @ 11985:eace96d0f9db draft

<b_jonas> `` >>share/whatis echo \'ddate(1) - convert Gregorian dates to Discordian dates\'
author HackEso <hackeso@esolangs.org>
date Thu, 24 Oct 2019 07:13:24 +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.