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<shachaf> sled bin/5?//s/1/{1:-w q}/
author HackBot
date Fri, 16 Mar 2018 00:37:58 +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.