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Theorems · Definition · category theory

CategoryTheory.forget

(C : Type u_1) →
  [inst : CategoryTheory.Category.{v_1, u_1} C] →
    {FC : outParam (C → C → Type u_2)} →
      {CC : outParam (C → Type w)} →
        [inst_1 : outParam ((X Y : C) → FunLike (FC X Y) (CC X) (CC Y))] →
          [CategoryTheory.ConcreteCategory C FC] → CategoryTheory.Functor C (Type w)

The forgetful functor from a concrete category to the category of types.

Defined in
Mathlib.CategoryTheory.ConcreteCategory.Forget
Cited by
418 results in Mathlib
Foundations
Depth 19 from the axioms, rests on 104 definitions · uses propext, Quot.sound
Assumes
CategoryTheory.CategoryoutParamCategoryTheory.ConcreteCategory

Around this declaration

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

AlgebraicGeometry.Scheme.forget · cited by 78Scheme.forgetTopCat.Presheaf.exists_germ_eq · cited by 14Presheaf.exists_germ_eqsmoothSheafCommRing.forgetStalk · cited by 13smoothSheafCommRing.forge…CategoryTheory.ConcreteCategory.forget_map_eq_ofHom · cited by 13ConcreteCategory.forget_m…CategoryTheory.PreGaloisCategory.AutGalois · cited by 12PreGaloisCategory.AutGalo…CategoryTheory.ConcreteCategory.isIso_iff_bijective · cited by 12ConcreteCategory.isIso_if…CategoryTheory.ConcreteCategory.mono_of_injective · cited by 12ConcreteCategory.mono_of_…TopCat.epi_iff_surjective · cited by 11TopCat.epi_iff_surjectiveLightCondensed.forget · cited by 10LightCondensed.forgetCategoryTheory.Functor.RepresentableBy.homEquiv' · cited by 10RepresentableBy.homEquiv'SheafOfModules.Presentation.relations · cited by 10Presentation.relationsTopCat.Presheaf.germ_eq · cited by 9Presheaf.germ_eqCategoryTheory.GrothendieckTopology.Plus.mk · cited by 9Plus.mkCategoryTheory.ConcreteCategory.epi_of_surjective · cited by 9ConcreteCategory.epi_of_s…MonCat.FilteredColimits.M · cited by 8FilteredColimits.MDFunLike.coe · cited by 62936DFunLike.coeCategoryTheory.Category · cited by 32673CategoryTheory.CategoryQuiver.Hom · cited by 32603Quiver.HomCategoryTheory.Functor · cited by 16252CategoryTheory.FunctorCategoryTheory.ConcreteCategory.hom · cited by 4022ConcreteCategory.homFunLike · cited by 2560FunLikeCategoryTheory.ConcreteCategory · cited by 421CategoryTheory.ConcreteCa…TypeCat.ofHom · cited by 389TypeCat.ofHomCategoryTheory.ToType · cited by 219CategoryTheory.ToTypeCategoryTheory.forgetCITED BYCITES

Cites9

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Cited by640

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