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<b_jonas> learn Hooloovo0 is a calculator brain surgeon.
author HackEso <hackeso@esolangs.org>
date Mon, 18 Nov 2019 02:20:52 +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.