Theorems · Theorem · category theory

CategoryTheory.Abelian.PreservesImage.factorThruImage_iso_hom

∀ {C : Type u₁} [inst : CategoryTheory.Category.{v₁, u₁} C] [inst_1 : CategoryTheory.Limits.HasZeroMorphisms C]
  {D : Type u₂} [inst_2 : CategoryTheory.Category.{v₂, u₂} D] [inst_3 : CategoryTheory.Limits.HasZeroMorphisms D]
  (F : CategoryTheory.Functor C D) [inst_4 : F.PreservesZeroMorphisms] {X Y : C} (f : X ⟶ Y)
  [inst_5 : CategoryTheory.Limits.HasCokernel f]
  [inst_6 : CategoryTheory.Limits.HasKernel (CategoryTheory.Limits.cokernel.π f)]
  [inst_7 : CategoryTheory.Limits.PreservesColimit (CategoryTheory.Limits.parallelPair f 0) F]
  [inst_8 :
    CategoryTheory.Limits.PreservesLimit (CategoryTheory.Limits.parallelPair (CategoryTheory.Limits.cokernel.π f) 0) F]
  [inst_9 : CategoryTheory.Limits.HasCokernel (F.map f)]
  [inst_10 : CategoryTheory.Limits.HasKernel (CategoryTheory.Limits.cokernel.π (F.map f))],
  CategoryTheory.CategoryStruct.comp (F.map (CategoryTheory.Abelian.factorThruImage f))
      (CategoryTheory.Abelian.PreservesImage.iso F f).hom =
    CategoryTheory.Abelian.factorThruImage (F.map f)

Defined in

Mathlib.CategoryTheory.Limits.Preserves.Shapes.AbelianImages

Cited by

2 results in Mathlib

Foundations

Depth 44 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

CategoryTheory.CategoryCategoryTheory.Limits.HasZeroMorphismsCategoryTheory.CategoryCategoryTheory.Limits.HasZeroMorphismsCategoryTheory.Functor.PreservesZeroMorphismsCategoryTheory.Limits.HasCokernelCategoryTheory.Limits.HasKernelCategoryTheory.Limits.PreservesColimitCategoryTheory.Limits.PreservesLimitCategoryTheory.Limits.HasCokernelCategoryTheory.Limits.HasKernel