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Theorems · Definition · category theory

CategoryTheory.Limits.KernelFork.isLimitMapConeEquiv

{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] →
            {X Y : C} →
              {f : X ⟶ Y} →
                (c : CategoryTheory.Limits.KernelFork f) →
                  (G : CategoryTheory.Functor C D) →
                    [inst_4 : G.PreservesZeroMorphisms] →
                      CategoryTheory.Limits.IsLimit (G.mapCone c) ≃ CategoryTheory.Limits.IsLimit (c.map G)

The underlying cone of a kernel fork is mapped to a limit cone if and only if the mapped kernel fork is limit.

Defined in
Mathlib.CategoryTheory.Limits.Preserves.Shapes.Kernels
Cited by
7 results in Mathlib
Foundations
Depth 35 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CategoryTheory.CategoryCategoryTheory.Limits.HasZeroMorphismsCategoryTheory.CategoryCategoryTheory.Limits.HasZeroMorphismsCategoryTheory.Functor.PreservesZeroMorphisms

Around this declaration

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

CategoryTheory.kernelCokernelCompSequence.snakeInput · cited by 31kernelCokernelCompSequenc…HomologicalComplex.HomologySequence.snakeInput · cited by 27HomologySequence.snakeInp…CategoryTheory.Limits.KernelFork.mapIsLimit · cited by 5KernelFork.mapIsLimitCategoryTheory.Functor.preservesFiniteLimits_tfae · cited by 5Functor.preservesFiniteLi…CategoryTheory.ObjectProperty.SerreClassLocalization.preservesKernel · cited by 3SerreClassLocalization.pr…CategoryTheory.Functor.preservesHomology_of_map_exact · cited by 2Functor.preservesHomology…CategoryTheory.ObjectProperty.SerreClassLocalization.hasKernels · cited by 1SerreClassLocalization.ha…CategoryTheory.Limits.isLimitMapConeForkEquiv' · cited by 1Limits.isLimitMapConeFork…CochainComplex.Lifting.exists_hom · cited by 1Lifting.exists_homCategoryTheory.ObjectProperty.SerreClassLocalization.preservesFiniteLimits_comp_iff · cited by 1SerreClassLocalization.pr…CategoryTheory.Limits.kerIsKernel · cited by 0Limits.kerIsKernelCategoryTheory.ObjectProperty.SerreClassLocalization.isNormalMonoCategory · cited by 0SerreClassLocalization.is…CategoryTheory.Category · cited by 32673CategoryTheory.CategoryQuiver.Hom · cited by 32603Quiver.HomCategoryTheory.Functor.obj · cited by 19642Functor.objCategoryTheory.Functor · cited by 16252CategoryTheory.FunctorCategoryTheory.Functor.map · cited by 8698Functor.mapEquiv · cited by 8337EquivCategoryTheory.Iso.hom · cited by 7684Iso.homCategoryTheory.Functor.comp · cited by 6529Functor.compEquiv.symm · cited by 3681Equiv.symmCategoryTheory.Limits.HasZeroMorphisms · cited by 3275Limits.HasZeroMorphismsCategoryTheory.Limits.Cone.pt · cited by 1298Cone.ptCategoryTheory.Limits.WalkingParallelPair · cited by 781Limits.WalkingParallelPairCategoryTheory.Limits.parallelPair · cited by 766Limits.parallelPairCategoryTheory.Iso.refl · cited by 727Iso.reflCategoryTheory.Limits.IsLimit · cited by 664Limits.IsLimitKernelFork.isLimitMapConeEquivCITED BYCITES

Cites25

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Cited by12

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