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view wisdom/lambek's lemma @ 12322:f63a9a76560c draft
<int-e> ` mv $HACKENV/wisdom/economic{,s}
author | HackEso <hackeso@esolangs.org> |
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date | Fri, 20 Mar 2020 23:56:35 +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.