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Theorems · Definition · category theory

CategoryTheory.Limits.pushout.desc

{C : Type u} →
  [inst : CategoryTheory.Category.{v, u} C] →
    {W X Y Z : C} →
      {f : X ⟶ Y} →
        {g : X ⟶ Z} →
          [inst_1 : CategoryTheory.Limits.HasPushout f g] →
            (h : Y ⟶ W) →
              (k : Z ⟶ W) →
                autoParam (CategoryTheory.CategoryStruct.comp f h = CategoryTheory.CategoryStruct.comp g k)
                    CategoryTheory.Limits.pushout.desc._auto_1 →
                  (CategoryTheory.Limits.pushout f g ⟶ W)

A pair of morphisms h : Y ⟶ W and k : Z ⟶ W satisfying f ≫ h = g ≫ k induces a morphism pushout.desc : pushout f g ⟶ W.

Defined in
Mathlib.CategoryTheory.Limits.Shapes.Pullback.HasPullback
Cited by
46 results in Mathlib
Foundations
Depth 24 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CategoryTheory.CategoryCategoryTheory.Limits.HasPushout

Around this declaration

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

CategoryTheory.Functor.PushoutObjObj.ofHasPushout · cited by 34PushoutObjObj.ofHasPushoutCategoryTheory.Under.pushout · cited by 21Under.pushoutCategoryTheory.MorphismProperty.Under.pushout · cited by 15Under.pushoutCategoryTheory.Limits.pushout.map · cited by 14pushout.mapAlgebraicGeometry.pushoutSection · cited by 12AlgebraicGeometry.pushout…CategoryTheory.SmallObject.πFunctorObj · cited by 11SmallObject.πFunctorObjCategoryTheory.Limits.pushoutComparison · cited by 8Limits.pushoutComparisonCategoryTheory.MonoidalCategory.Arrow.PushoutProduct.associator · cited by 8PushoutProduct.associatorCategoryTheory.Limits.pushout.codiagonal · cited by 8pushout.codiagonalCategoryTheory.Limits.pushout.inl_desc · cited by 8pushout.inl_descCategoryTheory.Limits.pushout.inr_desc · cited by 8pushout.inr_descCategoryTheory.Limits.pushout.desc.congr_simp · cited by 7desc.congr_simpCategoryTheory.Limits.pushoutIsPushout · cited by 7Limits.pushoutIsPushoutCategoryTheory.Functor.LeibnizAdjunction.adj · cited by 5LeibnizAdjunction.adjHomotopicalAlgebra.Precylinder.trans · cited by 5Precylinder.transCategoryTheory.Category · cited by 32673CategoryTheory.CategoryQuiver.Hom · cited by 32603Quiver.HomCategoryTheory.CategoryStruct.comp · cited by 17999CategoryStruct.compCategoryTheory.Limits.span · cited by 294Limits.spanCategoryTheory.Limits.pushout · cited by 284Limits.pushoutCategoryTheory.Limits.HasPushout · cited by 192Limits.HasPushoutCategoryTheory.Limits.PushoutCocone.mk · cited by 89PushoutCocone.mkCategoryTheory.Limits.colimit.desc · cited by 63colimit.descpushout.descCITED BYCITES

Cites8

Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.

Cited by71

Results whose statement or proof uses this declaration.