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Theorems · Definition · category theory

CategoryTheory.Limits.cokernel.map

{C : Type u} →
  [inst : CategoryTheory.Category.{v, u} C] →
    [inst_1 : CategoryTheory.Limits.HasZeroMorphisms C] →
      {X Y : C} →
        (f : X ⟶ Y) →
          [inst_2 : CategoryTheory.Limits.HasCokernel f] →
            {X' Y' : C} →
              (f' : X' ⟶ Y') →
                [inst_3 : CategoryTheory.Limits.HasCokernel f'] →
                  (p : X ⟶ X') →
                    (q : Y ⟶ Y') →
                      CategoryTheory.CategoryStruct.comp f q = CategoryTheory.CategoryStruct.comp p f' →
                        (CategoryTheory.Limits.cokernel f ⟶ CategoryTheory.Limits.cokernel f')

A commuting square induces a morphism of cokernels.

Defined in
Mathlib.CategoryTheory.Limits.Shapes.Kernels
Cited by
23 results in Mathlib
Foundations
Depth 33 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CategoryTheory.CategoryCategoryTheory.Limits.HasZeroMorphismsCategoryTheory.Limits.HasCokernelCategoryTheory.Limits.HasCokernel

Around this declaration

Dashed lines are statement dependencies; solid lines are citations in proofs.

CategoryTheory.kernelCokernelCompSequence.snakeInput · cited by 31kernelCokernelCompSequenc…CategoryTheory.Limits.cokernel.mapIso · cited by 4cokernel.mapIsoCategoryTheory.Abelian.PreservesCoimage.factorThruCoimage_iso_inv · cited by 2PreservesCoimage.factorTh…CategoryTheory.Abelian.PreservesCoimage.iso_hom_π · cited by 2PreservesCoimage.iso_hom_πCategoryTheory.Limits.cokernel.map.congr_simp · cited by 2map.congr_simpCategoryTheory.Limits.cokernel_map_comp_cokernelComparison · cited by 2Limits.cokernel_map_comp_…CategoryTheory.Abelian.coimageImageComparisonFunctor · cited by 2Abelian.coimageImageCompa…CategoryTheory.Limits.preserves_cokernel_iso_comp_cokernel_map · cited by 1Limits.preserves_cokernel…CategoryTheory.ObjectProperty.epiModSerre.isoModSerre_image_ι · cited by 1epiModSerre.isoModSerre_i…CategoryTheory.Limits.cokernel.mapIso_hom · cited by 1cokernel.mapIso_homCategoryTheory.Limits.cokernel.mapIso_inv · cited by 1cokernel.mapIso_invCategoryTheory.Limits.cokernel.map_desc · cited by 1cokernel.map_descCategoryTheory.kernelCokernelCompSequence · cited by 1CategoryTheory.kernelCoke…CategoryTheory.Limits.preserves_cokernel_iso_comp_cokernel_map_assoc · cited by 0Limits.preserves_cokernel…CategoryTheory.Abelian.FunctorCategory.coimageObjIso_hom · cited by 0FunctorCategory.coimageOb…CategoryTheory.Category · cited by 32673CategoryTheory.CategoryQuiver.Hom · cited by 32603Quiver.HomCategoryTheory.CategoryStruct.comp · cited by 17999CategoryStruct.compCategoryTheory.Limits.HasZeroMorphisms · cited by 3275Limits.HasZeroMorphismsCategoryTheory.Limits.cokernel · cited by 229Limits.cokernelCategoryTheory.Limits.cokernel.π · cited by 194cokernel.πCategoryTheory.Limits.HasCokernel · cited by 131Limits.HasCokernelCategoryTheory.Limits.cokernel.desc · cited by 53cokernel.desccokernel.mapCITED BYCITES

Cites8

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Cited by27

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