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.
Cites7
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- CategoryTheory.Categorystatement and proof · cited by 32,673
- Quiver.Homstatement and proof · cited by 32,603
- CategoryTheory.CategoryStruct.compproof · cited by 17,999
- Equivstatement · cited by 8,337
- CategoryTheory.Iso.homproof · cited by 7,684
- CategoryTheory.Iso.invproof · cited by 6,514
- CategoryTheory.Isostatement and proof · cited by 3,963
Cited by43
Results whose statement or proof uses this declaration.
- CategoryTheory.conjugateEquivproof · cited by 51
- CategoryTheory.Bicategory.conjugateEquivproof · cited by 41
- CategoryTheory.Bicategory.mateEquivproof · cited by 24
- CategoryTheory.Iso.conjproof · cited by 16
- CategoryTheory.LocalizerMorphism.homMapproof · cited by 10
- CategoryTheory.Iso.homCongr_applystatement and proof · cited by 9
- CategoryTheory.unitCompPartialBijectiveproof · cited by 6
- CategoryTheory.Adjunction.restrictFullyFaithfulproof · cited by 5
- CategoryTheory.Pseudofunctor.presheafHomObjHomEquivproof · cited by 5
- CategoryTheory.LocalizerMorphism.smallHomMapproof · cited by 5
- CategoryTheory.LocalizerMorphism.equiv_smallHomMapproof · cited by 4
- CategoryTheory.Adjunction.map_restrictFullyFaithful_unit_appproof · cited by 4