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Theorems · Definition · category theory

TopologicalSpace.Opens.overEquivalence

{X : Type u} →
  [inst : TopologicalSpace X] → (U : TopologicalSpace.Opens X) → CategoryTheory.Over U ≌ TopologicalSpace.Opens ↥U

If X is a topological space and U : Opens X, then the category Over U is equivalent to Opens ↥U.

Defined in
Mathlib.Topology.Sheaves.Over
Cited by
18 results in Mathlib
Foundations
Depth 85 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
TopologicalSpace

Around this declaration

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

TopologicalSpace.Opens.sheafEquivOver · cited by 10Opens.sheafEquivOverAlgebraicGeometry.Scheme.Modules.overFunctorEquiv · cited by 1Modules.overFunctorEquivTopologicalSpace.Opens.mem_overEquivalence_functor_obj · cited by 0Opens.mem_overEquivalence…TopologicalSpace.Opens.coe_overEquivalence_functor_obj · cited by 0Opens.coe_overEquivalence…TopologicalSpace.Opens.coe_overEquivalence_inverse_obj_left · cited by 0Opens.coe_overEquivalence…AlgebraicGeometry.Scheme.Modules.overMapCompOverEquiv · cited by 0Modules.overMapCompOverEq…TopologicalSpace.Opens.overEquivalence_counitIso_hom_app · cited by 0Opens.overEquivalence_cou…TopologicalSpace.Opens.overEquivalence_counitIso_inv_app · cited by 0Opens.overEquivalence_cou…TopologicalSpace.Opens.overEquivalence_inverse_obj_right_as · cited by 0Opens.overEquivalence_inv…TopologicalSpace.Opens.overEquivalence_unitIso_hom_app_left · cited by 0Opens.overEquivalence_uni…TopologicalSpace.Opens.overEquivalence_unitIso_inv_app_left · cited by 0Opens.overEquivalence_uni…TopologicalSpace.Opens.sheafEquivOver_counitIso_hom_app_hom_app · cited by 0Opens.sheafEquivOver_coun…TopologicalSpace.Opens.sheafEquivOver_counitIso_inv_app_hom_app · cited by 0Opens.sheafEquivOver_coun…TopologicalSpace.Opens.sheafEquivOver_functor_map_hom_app · cited by 0Opens.sheafEquivOver_func…TopologicalSpace.Opens.sheafEquivOver_functor_obj_obj_map · cited by 0Opens.sheafEquivOver_func…Quiver.Hom · cited by 32603Quiver.HomTopologicalSpace · cited by 24529TopologicalSpaceSetLike.coe · cited by 8199SetLike.coeSet.image · cited by 5609Set.imageSet.preimage · cited by 4946Set.preimageTopologicalSpace.Opens · cited by 2040TopologicalSpace.OpensCategoryTheory.Over · cited by 935CategoryTheory.OverCategoryTheory.Equivalence · cited by 601CategoryTheory.EquivalenceCategoryTheory.homOfLE · cited by 554CategoryTheory.homOfLECategoryTheory.Over.left · cited by 541Over.leftCategoryTheory.Over.mk · cited by 203Over.mkCategoryTheory.NatIso.ofComponents · cited by 178NatIso.ofComponentsCategoryTheory.Over.homMk · cited by 115Over.homMkCategoryTheory.eqToIso · cited by 97CategoryTheory.eqToIsoCategoryTheory.Over.isoMk · cited by 22Over.isoMkOpens.overEquivalenceCITED BYCITES

Cites15

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

Cited by22

Results whose statement or proof uses this declaration.