[ add ] concat [ xs ] ≡ xs
#2530
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JacquesCarette
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Dec 23, 2024
JacquesCarette
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Dec 24, 2024
Taneb
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JacquesCarette
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Dec 24, 2024
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I'm persuaded by the discussion on Zulip (and my own thoughtlessness in responding there) that this is a simple worthwhile addition, with its potential downstream use in #2524 (and elsewhere). Thanks to @ncfavier for clarifying the triangle laws for the
Listmonad!Possible issue(s):
concat∘[_]≗id? (or some prefix version?)[_]as an operator?concat-[-]to eg.concat∘map[_]≗id? (or some more informative prefix version?)