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Theorems · Definition · category theory

CategoryTheory.Iso.homCongr

{C : Type u} → [inst : CategoryTheory.Category.{v, u} C] → {X Y X₁ Y₁ : C} → (X ≅ X₁) → (Y ≅ Y₁) → (X ⟶ Y) ≃ (X₁ ⟶ Y₁)

If X is isomorphic to X₁ and Y is isomorphic to Y₁, then there is a natural bijection between X ⟶ Y and X₁ ⟶ Y₁. See also Equiv.arrowCongr.

Defined in
Mathlib.CategoryTheory.HomCongr
Cited by
30 results in Mathlib
Foundations
Depth 10 from the axioms · uses Quot.sound
Assumes
CategoryTheory.Category

Around this declaration

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

CategoryTheory.conjugateEquiv · cited by 51CategoryTheory.conjugateE…CategoryTheory.Bicategory.conjugateEquiv · cited by 41Bicategory.conjugateEquivCategoryTheory.Bicategory.mateEquiv · cited by 24Bicategory.mateEquivCategoryTheory.Iso.conj · cited by 16Iso.conjCategoryTheory.LocalizerMorphism.homMap · cited by 10LocalizerMorphism.homMapCategoryTheory.Iso.homCongr_apply · cited by 9Iso.homCongr_applyCategoryTheory.unitCompPartialBijective · cited by 6CategoryTheory.unitCompPa…CategoryTheory.Adjunction.restrictFullyFaithful · cited by 5Adjunction.restrictFullyF…CategoryTheory.Pseudofunctor.presheafHomObjHomEquiv · cited by 5Pseudofunctor.presheafHom…CategoryTheory.LocalizerMorphism.smallHomMap · cited by 5LocalizerMorphism.smallHo…CategoryTheory.LocalizerMorphism.equiv_smallHomMap · cited by 4LocalizerMorphism.equiv_s…CategoryTheory.Adjunction.map_restrictFullyFaithful_unit_app · cited by 4Adjunction.map_restrictFu…CategoryTheory.bijection · cited by 3CategoryTheory.bijectionCategoryTheory.CostructuredArrow.toOverCompYoneda · cited by 2CostructuredArrow.toOverC…CategoryTheory.Localization.hasSmallLocalizedHom_iff_of_isos · cited by 2Localization.hasSmallLoca…CategoryTheory.Category · cited by 32673CategoryTheory.CategoryQuiver.Hom · cited by 32603Quiver.HomCategoryTheory.CategoryStruct.comp · cited by 17999CategoryStruct.compEquiv · cited by 8337EquivCategoryTheory.Iso.hom · cited by 7684Iso.homCategoryTheory.Iso.inv · cited by 6514Iso.invCategoryTheory.Iso · cited by 3963CategoryTheory.IsoIso.homCongrCITED BYCITES

Cites7

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Cited by43

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