SSet.stdSimplex.finOrderIsoPairCompl

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

The order isomorphism between Fin n and {i, j}ᶜ when i < j are elements in Fin (n + 2).

Defined in: Mathlib.AlgebraicTopology.SimplicialSet.StdSimplex
Cited by: 1 results in Mathlib
Foundations: Depth 69 from the axioms · uses propext, Classical.choice, Quot.sound

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