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Theorems · Definition · algebraic topology

SSet.RelativeMorphism.Homotopy.refl

{X Y : SSet} →
  {A : X.Subcomplex} → {B : Y.Subcomplex} → {φ : A.toSSet ⟶ B.toSSet} → (f : SSet.RelativeMorphism A B φ) → f.Homotopy f

A relative morphism is homotopic to itself.

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

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