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<shachaf> slwd fizzie//s/sneaky //
author HackEso <hackeso@esolangs.org>
date Wed, 13 Mar 2019 01:03:43 +0000
parents d3a12978331a
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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.