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Theorems · Definition · category theory

HomotopyEquiv.trans

{ι : Type u_1} →
  {V : Type u} →
    [inst : CategoryTheory.Category.{v, u} V] →
      [inst_1 : CategoryTheory.Preadditive V] →
        {c : ComplexShape ι} →
          {C D E : HomologicalComplex V c} → HomotopyEquiv C D → HomotopyEquiv D E → HomotopyEquiv C E

Homotopy equivalence is a transitive relation.

Defined in
Mathlib.Algebra.Homology.Homotopy
Cited by
4 results in Mathlib
Foundations
Depth 57 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CategoryTheory.CategoryCategoryTheory.Preadditive

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