Proof that pred is right adjoint to suc on ℕ._≤_
#2456
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MatthewDaggitt
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Aug 14, 2024
gallais
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Aug 14, 2024
JacquesCarette
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MatthewDaggitt
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Aug 15, 2024
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I'm reluctant to add yet more to
Data.Nat.Properties, but these lemmas seemed missing, and offered a sweet-spot in an application I've been working on, and as a by-product the left-to-right direction permits a possibly useful refactoring of≤-pred.