annotate wisdom/lambek's lemma @ 12296:042127c1c142 draft

<fizzie> ` rm /hackenv/bin/bfi; ln -s /hackenv/lib/kps/bfi /hackenv/bin/bfi # no need for actual copies that you can forget to delete though
author HackEso <hackeso@esolangs.org>
date Sat, 04 Jan 2020 13:28:36 +0000
parents d3a12978331a
children
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10491
d3a12978331a <shachaf> le/rn_append lambek\'s lemma//It can be proved with as few as five arrows.
HackBot
parents: 8401
diff changeset
1 Lambek's Lemma, invented by Joachim "Taneb" Lambek, states that initial algebras have inverses. It can be proved with as few as five arrows.