Fin.succAboveOrderIso

{n : ℕ} → (i : Fin (n + 2)) → Fin (n + 1) ≃o ↥{i}ᶜ

Given i : Fin (n + 2), this is the order isomorphism between Fin (n + 1) and the finite set {i}ᶜ.

Defined in: Mathlib.Order.Fin.SuccAboveOrderIso
Cited by: 1 results in Mathlib
Foundations: Depth 68 from the axioms · uses propext, Classical.choice, Quot.sound

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