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annotate wisdom/lambek's lemma @ 11391:b2c725ab1062

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<wob_jonas> forget n\xc3\xb8d
author HackBot
date Wed, 28 Feb 2018 02:25:39 +0000
parents d3a12978331a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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.