Theorems · Theorem · category theory

HomologicalComplex.extend_d_from_eq_zero

∀ {ι : Type u_1} {ι' : Type u_2} {c : ComplexShape ι} {c' : ComplexShape ι'} {C : Type u_3}
  [inst : CategoryTheory.Category.{v_1, u_3} C] [inst_1 : CategoryTheory.Limits.HasZeroObject C]
  [inst_2 : CategoryTheory.Limits.HasZeroMorphisms C] (K : HomologicalComplex C c) (e : c.Embedding c') (i' j' : ι')
  (i : ι), e.f i = i' → ¬c.Rel i (c.next i) → (K.extend e).d i' j' = 0

Defined in

Mathlib.Algebra.Homology.Embedding.Extend

Cited by

2 results in Mathlib

Foundations

Depth 20 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

CategoryTheory.CategoryCategoryTheory.Limits.HasZeroObjectCategoryTheory.Limits.HasZeroMorphisms