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annotate wisdom/lambek's lemma @ 11247:3984b7cae85f

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<shachaf> swrjan s/pt/ek/
author HackBot
date Tue, 28 Nov 2017 08:53:44 +0000
parents d3a12978331a
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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.