SSet.horn.spineId

{n : ℕ} → (i : Fin (n + 3)) → 0 < i → i < Fin.last (n + 2) → (SSet.horn (n + 2) i).toSSet.Path (n + 2)

Any inner horn contains the spine of the unique non-degenerate n-simplex in Δ[n].

Defined in: Mathlib.AlgebraicTopology.SimplicialSet.Path
Cited by: 4 results in Mathlib
Foundations: Depth 89 from the axioms · uses propext, Classical.choice, Quot.sound

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