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annotate wisdom/lambek's lemma @ 11390:1839bf085c00

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<wob_jonas> forget mark
author HackBot
date Wed, 28 Feb 2018 02:24:09 +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
diff changeset
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.