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Theorems · Theorem · category theory

CategoryTheory.IsPullback.of_hasPullback

∀ {C : Type u₁} [inst : CategoryTheory.Category.{v₁, u₁} C] {X Y Z : C} (f : X ⟶ Z) (g : Y ⟶ Z)
  [inst_1 : CategoryTheory.Limits.HasPullback f g],
  CategoryTheory.IsPullback (CategoryTheory.Limits.pullback.fst f g) (CategoryTheory.Limits.pullback.snd f g) f g

The pullback provided by HasPullback f g fits into an IsPullback.

Defined in
Mathlib.CategoryTheory.Limits.Shapes.Pullback.IsPullback.Defs
Cited by
70 results in Mathlib
Foundations
Depth 33 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CategoryTheory.CategoryCategoryTheory.Limits.HasPullback

Around this declaration

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

AlgebraicGeometry.IsZariskiLocalAtTarget.iff_of_openCover · cited by 18IsZariskiLocalAtTarget.if…CategoryTheory.MorphismProperty.pullback_snd · cited by 12MorphismProperty.pullback…AlgebraicGeometry.Scheme.Hom.support_ker · cited by 6Hom.support_kerAlgebraicGeometry.IsOpenImmersion.isPullback · cited by 4IsOpenImmersion.isPullbackCategoryTheory.MorphismProperty.pullback_fst · cited by 4MorphismProperty.pullback…AlgebraicGeometry.pullback_of_geometrically · cited by 3AlgebraicGeometry.pullbac…AlgebraicGeometry.HasAffineProperty.isStableUnderBaseChange · cited by 3HasAffineProperty.isStabl…CategoryTheory.Subobject.Classifier.surjective_χ · cited by 2Classifier.surjective_χAlgebraicGeometry.AffineSpace.isPullback_map · cited by 2AffineSpace.isPullback_mapCategoryTheory.IsPullback.isoOverPullback_hom_left_comp_snd · cited by 2IsPullback.isoOverPullbac…AlgebraicGeometry.Scheme.Hom.quasiFiniteAt_iff_isOpen_singleton_asFiber · cited by 2Hom.quasiFiniteAt_iff_isO…AlgebraicGeometry.Scheme.isEmpty_pullback · cited by 2Scheme.isEmpty_pullbackCategoryTheory.isUniversalColimit_extendCofan · cited by 2CategoryTheory.isUniversa…AlgebraicGeometry.universallyInjective_eq_diagonal · cited by 2AlgebraicGeometry.univers…CategoryTheory.Abelian.Preradical.isPullback_colon · cited by 2Preradical.isPullback_col…CategoryTheory.Category · cited by 32673CategoryTheory.CategoryQuiver.Hom · cited by 32603Quiver.HomCategoryTheory.Limits.pullback · cited by 864Limits.pullbackCategoryTheory.Limits.pullback.fst · cited by 639pullback.fstCategoryTheory.Limits.pullback.snd · cited by 637pullback.sndCategoryTheory.Limits.cospan · cited by 467Limits.cospanCategoryTheory.Limits.HasPullback · cited by 434Limits.HasPullbackCategoryTheory.IsPullback · cited by 320CategoryTheory.IsPullbackCategoryTheory.Limits.limit.isLimit · cited by 146limit.isLimitCategoryTheory.IsPullback.of_isLimit · cited by 12IsPullback.of_isLimitIsPullback.of_hasPullbackCITED BYCITES

Cites10

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Cited by70

Results whose statement or proof uses this declaration.