Theorems · Theorem · category theory
CategoryTheory.Presheaf.isSheaf_iff_multifork
∀ {C : Type u₁} [inst : CategoryTheory.Category.{v₁, u₁} C] {A : Type u₂} [inst_1 : CategoryTheory.Category.{v₂, u₂} A]
(J : CategoryTheory.GrothendieckTopology C) (P : CategoryTheory.Functor Cᵒᵖ A),
CategoryTheory.Presheaf.IsSheaf J P ↔
∀ (X : C) (S : J.Cover X), Nonempty (CategoryTheory.Limits.IsLimit (S.multifork P))- Defined in
- Mathlib.CategoryTheory.Sites.Sheaf
- Cited by
- 5 results in Mathlib
- Foundations
- Depth 42 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites49
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- DFunLike.coeproof · cited by 62,936
- CategoryTheory.Categorystatement and proof · cited by 32,673
- Quiver.Homproof · cited by 32,603
- CategoryTheory.Functor.objproof · cited by 19,642
- CategoryTheory.CategoryStruct.compproof · cited by 17,999
- CategoryTheory.Functorstatement and proof · cited by 16,252
- CategoryTheory.Functor.mapproof · cited by 8,698
- Oppositestatement and proof · cited by 8,081
- CategoryTheory.NatTrans.appproof · cited by 7,406
- CategoryTheory.Functor.compproof · cited by 6,529
- CategoryTheory.Category.assocproof · cited by 6,433
- CategoryTheory.GrothendieckTopologystatement and proof · cited by 1,415
Cited by5
Results whose statement or proof uses this declaration.
- CategoryTheory.Sheaf.isSheaf_of_isLimitproof · cited by 3
- CategoryTheory.Functor.OneHypercoverDenseData.isSheaf_iffproof · cited by 1
- CategoryTheory.GrothendieckTopology.OneHypercoverFamily.isSheaf_iffproof · cited by 1
- CategoryTheory.Presheaf.isSheaf_iff_multiequalizerproof · cited by 1
- CategoryTheory.ran_isSheaf_of_isCocontinuousproof · cited by 0