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<fizzie> ` learn \'A snake is just a directed vertical bridge in the negative orientation.\' # just to complement the entry on ladder
author | HackEso <hackeso@esolangs.org> |
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date | Mon, 03 Aug 2020 18:01:39 +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.