Theorems · Theorem · category theory

CategoryTheory.CommSq.shortComplex_g

∀ {C : Type u_1} [inst : CategoryTheory.Category.{v_1, u_1} C] [inst_1 : CategoryTheory.Preadditive C] {X₁ X₂ X₃ X₄ : C}
  [inst_2 : CategoryTheory.Limits.HasBinaryBiproduct X₂ X₃] {f : X₁ ⟶ X₂} {g : X₁ ⟶ X₃} {inl : X₂ ⟶ X₄} {inr : X₃ ⟶ X₄}
  (sq : CategoryTheory.CommSq f g inl inr), sq.shortComplex.g = CategoryTheory.Limits.biprod.desc inl inr

Defined in

Mathlib.Algebra.Homology.CommSq

Cited by

1 results in Mathlib

Foundations

Depth 33 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

CategoryTheory.CategoryCategoryTheory.PreadditiveCategoryTheory.Limits.HasBinaryBiproduct