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Theorems · Definition · category theory

CategoryTheory.NatTrans.Equifibered

{J : Type u_1} →
  {C : Type u_3} →
    [inst : CategoryTheory.Category.{v_1, u_1} J] →
      [inst_1 : CategoryTheory.Category.{v_2, u_3} C] → CategoryTheory.MorphismProperty (CategoryTheory.Functor J C)

A natural transformation is equifibered if every commutative square of the following form is a pullback. `` F(X) → F(Y) ↓ ↓ G(X) → G(Y) ``

Defined in
Mathlib.CategoryTheory.Limits.Shapes.Pullback.Equifibered
Cited by
41 results in Mathlib
Foundations
Depth 20 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CategoryTheory.CategoryCategoryTheory.Category

Around this declaration

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

CategoryTheory.IsVanKampenColimit · cited by 26CategoryTheory.IsVanKampe…CategoryTheory.IsUniversalColimit · cited by 23CategoryTheory.IsUniversa…CategoryTheory.NatTrans.Equifibered.of_discrete · cited by 11Equifibered.of_discreteCategoryTheory.IsVanKampenColimit.of_iso · cited by 9IsVanKampenColimit.of_isoCategoryTheory.NatTrans.Equifibered.of_isIso · cited by 7Equifibered.of_isIsoCategoryTheory.NatTrans.Equifibered.comp · cited by 6Equifibered.compCategoryTheory.NatTrans.Equifibered.whiskerRight · cited by 5Equifibered.whiskerRightCategoryTheory.IsVanKampenColimit.isUniversal · cited by 4IsVanKampenColimit.isUniv…CategoryTheory.IsVanKampenColimit.precompose_isIso · cited by 4IsVanKampenColimit.precom…CategoryTheory.IsVanKampenColimit.of_mapCocone · cited by 3IsVanKampenColimit.of_map…CategoryTheory.BinaryCofan.isVanKampen_iff · cited by 2BinaryCofan.isVanKampen_i…CategoryTheory.isUniversalColimit_extendCofan · cited by 2CategoryTheory.isUniversa…CategoryTheory.NatTrans.Equifibered.op · cited by 2Equifibered.opCategoryTheory.NatTrans.Equifibered.unop · cited by 2Equifibered.unopCategoryTheory.NatTrans.Equifibered.whiskerLeft · cited by 2Equifibered.whiskerLeftCategoryTheory.Category · cited by 32673CategoryTheory.CategoryQuiver.Hom · cited by 32603Quiver.HomCategoryTheory.Functor · cited by 16252CategoryTheory.FunctorCategoryTheory.Functor.map · cited by 8698Functor.mapCategoryTheory.NatTrans.app · cited by 7406NatTrans.appCategoryTheory.MorphismProperty · cited by 2179CategoryTheory.MorphismPr…CategoryTheory.IsPullback · cited by 320CategoryTheory.IsPullbackNatTrans.EquifiberedCITED BYCITES

Cites7

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Cited by48

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