Theorems · Theorem · category theory
CategoryTheory.Limits.kernel.condition
∀ {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.HasKernel f],
CategoryTheory.CategoryStruct.comp (CategoryTheory.Limits.kernel.ι f) f = 0- Cited by
- 52 results in Mathlib
- Foundations
- Depth 28 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites10
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- CategoryTheory.Categorystatement and proof · cited by 32,673
- Quiver.Homstatement and proof · cited by 32,603
- CategoryTheory.CategoryStruct.compstatement · cited by 17,999
- CategoryTheory.Limits.HasZeroMorphismsstatement and proof · cited by 3,275
- CategoryTheory.Limits.parallelPairproof · cited by 766
- CategoryTheory.Limits.kernelstatement · cited by 272
- CategoryTheory.Limits.kernel.ιstatement · cited by 214
- CategoryTheory.Limits.HasKernelstatement and proof · cited by 169
- CategoryTheory.Limits.limit.coneproof · cited by 97
- CategoryTheory.Limits.KernelFork.conditionproof · cited by 7
Cited by56
Results whose statement or proof uses this declaration.
- CategoryTheory.Limits.kernelIsKernelstatement · cited by 24
- CategoryTheory.Abelian.factorThruCoimageproof · cited by 12
- CategoryTheory.Limits.kernelSubobject_arrow_compproof · cited by 5
- CategoryTheory.Functor.preservesFiniteLimits_tfaeproof · cited by 5
- CategoryTheory.ObjectProperty.SerreClassLocalization.preservesKernelproof · cited by 3
- CategoryTheory.Abelian.comp_coimage_π_eq_zeroproof · cited by 3
- CategoryTheory.Abelian.epiWithInjectiveKernel_iffproof · cited by 3
- CategoryTheory.Limits.isLimitOfHasKernelOfPreservesLimitproof · cited by 3
- CategoryTheory.Functor.reflects_exact_of_faithfulproof · cited by 3
- CategoryTheory.Functor.preservesHomology_of_map_exactproof · cited by 2
- CategoryTheory.Abelian.isoModSerre_kernel_eq_inverseImage_isomorphismsproof · cited by 2
- CategoryTheory.ShortComplex.exact_iff_exact_coimage_πproof · cited by 2