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<oerjan> addquote <int-e> @tell boily arguably, PHP started out as esoteric, then it became mainstream, and then it became a programming language
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date Sat, 13 Jan 2018 00:24:49 +0000
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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.