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annotate wisdom/lambek's lemma @ 12278:805908a65518 draft

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<kspalaiologos> fetch /hackenv/bin/asmbf https://hack.esolangs.org/get/bin/asmbf
author HackEso <hackeso@esolangs.org>
date Tue, 31 Dec 2019 18:31:10 +0000
parents d3a12978331a
children
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10491
d3a12978331a <shachaf> le/rn_append lambek\'s lemma//It can be proved with as few as five arrows.
HackBot
parents: 8401
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1 Lambek's Lemma, invented by Joachim "Taneb" Lambek, states that initial algebras have inverses. It can be proved with as few as five arrows.