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Theorems · Definition · algebraic topology

SSet.spine

(X : SSet) → (n : ℕ) → X.obj (Opposite.op { len := n }) → X.Path n

The spine of an n-simplex in X is the path of edges of length n formed by traversing in order through the vertices of X _⦋n⦌ₙ₊₁.

Defined in
Mathlib.AlgebraicTopology.SimplicialSet.Path
Cited by
23 results in Mathlib
Foundations
Depth 60 from the axioms · uses propext, Classical.choice, Quot.sound

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