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Theorems · Definition · category theory

CategoryTheory.Functor.Elements

{C : Type u} → [inst : CategoryTheory.Category.{v, u} C] → CategoryTheory.Functor C (Type w) → Type (max u w)

The type of objects for the category of elements of a functor F : C ⥤ Type is a pair (X : C, x : F.obj X).

Defined in
Mathlib.CategoryTheory.Elements
Cited by
141 results in Mathlib
Foundations
Depth 11 from the axioms, rests on 53 definitions · uses no axioms
Assumes
CategoryTheory.Category

Around this declaration

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

CategoryTheory.GrothendieckTopology.Point.presheafFiber · cited by 89Point.presheafFiberCategoryTheory.CategoryOfElements.π · cited by 48CategoryOfElements.πCategoryTheory.Functor.elementsMk · cited by 14Functor.elementsMkCategoryTheory.CategoryOfElements.homMk · cited by 13CategoryOfElements.homMkCategoryTheory.ActionCategory · cited by 12CategoryTheory.ActionCate…CategoryTheory.Grothendieck.grothendieckTypeToCat · cited by 12Grothendieck.grothendieck…CategoryTheory.Grothendieck.grothendieckTypeToCatFunctor · cited by 9Grothendieck.grothendieck…CategoryTheory.Grothendieck.grothendieckTypeToCatInverse · cited by 9Grothendieck.grothendieck…CategoryTheory.CategoryOfElements.costructuredArrowYonedaEquivalence · cited by 9CategoryOfElements.costru…CategoryTheory.GrothendieckTopology.Point.presheafFiberDesc · cited by 7Point.presheafFiberDescCategoryTheory.CategoryOfElements.costructuredArrowULiftYonedaEquivalence · cited by 7CategoryOfElements.costru…CategoryTheory.CategoryOfElements.fromCostructuredArrow · cited by 7CategoryOfElements.fromCo…CategoryTheory.Presheaf.functorToRepresentables · cited by 7Presheaf.functorToReprese…PresheafOfModules.Elements · cited by 6PresheafOfModules.ElementsCategoryTheory.GrothendieckTopology.Point.presheafFiberCompIso · cited by 6Point.presheafFiberCompIsoCategoryTheory.Category · cited by 32673CategoryTheory.CategoryCategoryTheory.Functor.obj · cited by 19642Functor.objCategoryTheory.Functor · cited by 16252CategoryTheory.FunctorFunctor.ElementsCITED BYCITES

Cites3

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Cited by214

Results whose statement or proof uses this declaration.