Left exactness of sheafification #
In this file we show that sheafification commutes with finite limits.
def
CategoryTheory.GrothendieckTopology.coneCompEvaluationOfConeCompDiagramFunctorCompEvaluation
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
{X : C}
{K : Type (max v u)}
[CategoryTheory.SmallCategory K]
{F : CategoryTheory.Functor K (CategoryTheory.Functor Cᵒᵖ D)}
{W : J.Cover X}
(i : W.Arrow)
(E : CategoryTheory.Limits.Cone
(F.comp ((J.diagramFunctor D X).comp ((CategoryTheory.evaluation (J.Cover X)ᵒᵖ D).obj (Opposite.op W)))))
:
CategoryTheory.Limits.Cone (F.comp ((CategoryTheory.evaluation Cᵒᵖ D).obj (Opposite.op i.Y)))
An auxiliary definition to be used in the proof of the fact that
J.diagramFunctor D X
preserves limits.
Equations
- One or more equations did not get rendered due to their size.
Instances For
@[simp]
theorem
CategoryTheory.GrothendieckTopology.coneCompEvaluationOfConeCompDiagramFunctorCompEvaluation_π_app
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
{X : C}
{K : Type (max v u)}
[CategoryTheory.SmallCategory K]
{F : CategoryTheory.Functor K (CategoryTheory.Functor Cᵒᵖ D)}
{W : J.Cover X}
(i : W.Arrow)
(E : CategoryTheory.Limits.Cone
(F.comp ((J.diagramFunctor D X).comp ((CategoryTheory.evaluation (J.Cover X)ᵒᵖ D).obj (Opposite.op W)))))
(k : K)
:
(CategoryTheory.GrothendieckTopology.coneCompEvaluationOfConeCompDiagramFunctorCompEvaluation i E).π.app k = CategoryTheory.CategoryStruct.comp (E.π.app k) (CategoryTheory.Limits.Multiequalizer.ι (W.index (F.obj k)) i)
@[simp]
theorem
CategoryTheory.GrothendieckTopology.coneCompEvaluationOfConeCompDiagramFunctorCompEvaluation_pt
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
{X : C}
{K : Type (max v u)}
[CategoryTheory.SmallCategory K]
{F : CategoryTheory.Functor K (CategoryTheory.Functor Cᵒᵖ D)}
{W : J.Cover X}
(i : W.Arrow)
(E : CategoryTheory.Limits.Cone
(F.comp ((J.diagramFunctor D X).comp ((CategoryTheory.evaluation (J.Cover X)ᵒᵖ D).obj (Opposite.op W)))))
:
@[reducible, inline]
abbrev
CategoryTheory.GrothendieckTopology.liftToDiagramLimitObj
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
{X : C}
{K : Type (max v u)}
[CategoryTheory.SmallCategory K]
[CategoryTheory.Limits.HasLimitsOfShape K D]
{W : (J.Cover X)ᵒᵖ}
(F : CategoryTheory.Functor K (CategoryTheory.Functor Cᵒᵖ D))
(E : CategoryTheory.Limits.Cone (F.comp ((J.diagramFunctor D X).comp ((CategoryTheory.evaluation (J.Cover X)ᵒᵖ D).obj W))))
:
E.pt ⟶ (J.diagram (CategoryTheory.Limits.limit F) X).obj W
An auxiliary definition to be used in the proof of the fact that
J.diagramFunctor D X
preserves limits.
Equations
- One or more equations did not get rendered due to their size.
Instances For
instance
CategoryTheory.GrothendieckTopology.preservesLimit_diagramFunctor
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
(X : C)
(K : Type (max v u))
[CategoryTheory.SmallCategory K]
[CategoryTheory.Limits.HasLimitsOfShape K D]
(F : CategoryTheory.Functor K (CategoryTheory.Functor Cᵒᵖ D))
:
CategoryTheory.Limits.PreservesLimit F (J.diagramFunctor D X)
Equations
- One or more equations did not get rendered due to their size.
instance
CategoryTheory.GrothendieckTopology.preservesLimitsOfShape_diagramFunctor
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
(X : C)
(K : Type (max v u))
[CategoryTheory.SmallCategory K]
[CategoryTheory.Limits.HasLimitsOfShape K D]
:
CategoryTheory.Limits.PreservesLimitsOfShape K (J.diagramFunctor D X)
Equations
instance
CategoryTheory.GrothendieckTopology.preservesLimits_diagramFunctor
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
(X : C)
[CategoryTheory.Limits.HasLimits D]
:
CategoryTheory.Limits.PreservesLimits (J.diagramFunctor D X)
Equations
- One or more equations did not get rendered due to their size.
def
CategoryTheory.GrothendieckTopology.liftToPlusObjLimitObj
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
{K : Type (max v u)}
[CategoryTheory.SmallCategory K]
[CategoryTheory.FinCategory K]
[CategoryTheory.Limits.HasLimitsOfShape K D]
[CategoryTheory.Limits.PreservesLimitsOfShape K (CategoryTheory.forget D)]
[CategoryTheory.Limits.ReflectsLimitsOfShape K (CategoryTheory.forget D)]
(F : CategoryTheory.Functor K (CategoryTheory.Functor Cᵒᵖ D))
(X : C)
(S : CategoryTheory.Limits.Cone (F.comp ((J.plusFunctor D).comp ((CategoryTheory.evaluation Cᵒᵖ D).obj (Opposite.op X)))))
:
S.pt ⟶ (J.plusObj (CategoryTheory.Limits.limit F)).obj (Opposite.op X)
An auxiliary definition to be used in the proof that J.plusFunctor D
commutes
with finite limits.
Equations
- One or more equations did not get rendered due to their size.
Instances For
theorem
CategoryTheory.GrothendieckTopology.liftToPlusObjLimitObj_fac
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
{K : Type (max v u)}
[CategoryTheory.SmallCategory K]
[CategoryTheory.FinCategory K]
[CategoryTheory.Limits.HasLimitsOfShape K D]
[CategoryTheory.Limits.PreservesLimitsOfShape K (CategoryTheory.forget D)]
[CategoryTheory.Limits.ReflectsLimitsOfShape K (CategoryTheory.forget D)]
(F : CategoryTheory.Functor K (CategoryTheory.Functor Cᵒᵖ D))
(X : C)
(S : CategoryTheory.Limits.Cone (F.comp ((J.plusFunctor D).comp ((CategoryTheory.evaluation Cᵒᵖ D).obj (Opposite.op X)))))
(k : K)
:
CategoryTheory.CategoryStruct.comp (CategoryTheory.GrothendieckTopology.liftToPlusObjLimitObj F X S)
((J.plusMap (CategoryTheory.Limits.limit.π F k)).app (Opposite.op X)) = S.π.app k
instance
CategoryTheory.GrothendieckTopology.preservesLimitsOfShape_plusFunctor
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
(K : Type (max v u))
[CategoryTheory.SmallCategory K]
[CategoryTheory.FinCategory K]
[CategoryTheory.Limits.HasLimitsOfShape K D]
[CategoryTheory.Limits.PreservesLimitsOfShape K (CategoryTheory.forget D)]
[CategoryTheory.Limits.ReflectsLimitsOfShape K (CategoryTheory.forget D)]
:
CategoryTheory.Limits.PreservesLimitsOfShape K (J.plusFunctor D)
Equations
- One or more equations did not get rendered due to their size.
instance
CategoryTheory.GrothendieckTopology.preserveFiniteLimits_plusFunctor
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
[CategoryTheory.Limits.HasFiniteLimits D]
[CategoryTheory.Limits.PreservesFiniteLimits (CategoryTheory.forget D)]
[(CategoryTheory.forget D).ReflectsIsomorphisms]
:
CategoryTheory.Limits.PreservesFiniteLimits (J.plusFunctor D)
Equations
- One or more equations did not get rendered due to their size.
instance
CategoryTheory.GrothendieckTopology.preservesLimitsOfShape_sheafification
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
(K : Type (max v u))
[CategoryTheory.SmallCategory K]
[CategoryTheory.FinCategory K]
[CategoryTheory.Limits.HasLimitsOfShape K D]
[CategoryTheory.Limits.PreservesLimitsOfShape K (CategoryTheory.forget D)]
[CategoryTheory.Limits.ReflectsLimitsOfShape K (CategoryTheory.forget D)]
:
CategoryTheory.Limits.PreservesLimitsOfShape K (J.sheafification D)
Equations
- CategoryTheory.GrothendieckTopology.preservesLimitsOfShape_sheafification K = CategoryTheory.Limits.compPreservesLimitsOfShape (J.plusFunctor D) (J.plusFunctor D)
instance
CategoryTheory.GrothendieckTopology.preservesFiniteLimits_sheafification
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
[CategoryTheory.Limits.HasFiniteLimits D]
[CategoryTheory.Limits.PreservesFiniteLimits (CategoryTheory.forget D)]
[(CategoryTheory.forget D).ReflectsIsomorphisms]
:
CategoryTheory.Limits.PreservesFiniteLimits (J.sheafification D)
Equations
- CategoryTheory.GrothendieckTopology.preservesFiniteLimits_sheafification = CategoryTheory.Limits.compPreservesFiniteLimits (J.plusFunctor D) (J.plusFunctor D)
instance
CategoryTheory.preservesLimitsOfShape_presheafToSheaf
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
[CategoryTheory.Limits.PreservesLimits (CategoryTheory.forget D)]
[(CategoryTheory.forget D).ReflectsIsomorphisms]
(K : Type w')
[CategoryTheory.SmallCategory K]
[CategoryTheory.FinCategory K]
[CategoryTheory.Limits.HasLimitsOfShape K D]
:
Equations
- One or more equations did not get rendered due to their size.
instance
CategoryTheory.preservesfiniteLimits_presheafToSheaf
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
[CategoryTheory.Limits.PreservesLimits (CategoryTheory.forget D)]
[(CategoryTheory.forget D).ReflectsIsomorphisms]
[CategoryTheory.Limits.HasFiniteLimits D]
:
Equations
- One or more equations did not get rendered due to their size.
def
CategoryTheory.plusPlusSheafIsoPresheafToSheaf
{C : Type u}
[CategoryTheory.Category.{v, u} C]
(J : CategoryTheory.GrothendieckTopology C)
(D : Type w)
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
[CategoryTheory.Limits.PreservesLimits (CategoryTheory.forget D)]
[(CategoryTheory.forget D).ReflectsIsomorphisms]
:
plusPlusSheaf
is isomorphic to an arbitrary choice of left adjoint.
Equations
- CategoryTheory.plusPlusSheafIsoPresheafToSheaf J D = (CategoryTheory.plusPlusAdjunction J D).leftAdjointUniq (CategoryTheory.sheafificationAdjunction J D)
Instances For
def
CategoryTheory.plusPlusFunctorIsoSheafification
{C : Type u}
[CategoryTheory.Category.{v, u} C]
(J : CategoryTheory.GrothendieckTopology C)
(D : Type w)
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
[CategoryTheory.Limits.PreservesLimits (CategoryTheory.forget D)]
[(CategoryTheory.forget D).ReflectsIsomorphisms]
:
J.sheafification D ≅ CategoryTheory.sheafification J D
plusPlusFunctor
is isomorphic to sheafification
.
Equations
Instances For
def
CategoryTheory.plusPlusIsoSheafify
{C : Type u}
[CategoryTheory.Category.{v, u} C]
(J : CategoryTheory.GrothendieckTopology C)
(D : Type w)
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
[CategoryTheory.Limits.PreservesLimits (CategoryTheory.forget D)]
[(CategoryTheory.forget D).ReflectsIsomorphisms]
(P : CategoryTheory.Functor Cᵒᵖ D)
:
J.sheafify P ≅ CategoryTheory.sheafify J P
plusPlus
is isomorphic to sheafify
.
Equations
- CategoryTheory.plusPlusIsoSheafify J D P = (CategoryTheory.sheafToPresheaf J D).mapIso ((CategoryTheory.plusPlusSheafIsoPresheafToSheaf J D).app P)
Instances For
@[simp]
theorem
CategoryTheory.toSheafify_plusPlusIsoSheafify_hom
{C : Type u}
[CategoryTheory.Category.{v, u} C]
(J : CategoryTheory.GrothendieckTopology C)
(D : Type w)
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
[CategoryTheory.Limits.PreservesLimits (CategoryTheory.forget D)]
[(CategoryTheory.forget D).ReflectsIsomorphisms]
(P : CategoryTheory.Functor Cᵒᵖ D)
:
CategoryTheory.CategoryStruct.comp (J.toSheafify P) (CategoryTheory.plusPlusIsoSheafify J D P).hom = CategoryTheory.toSheafify J P
@[simp]
theorem
CategoryTheory.toSheafify_plusPlusIsoSheafify_hom_assoc
{C : Type u}
[CategoryTheory.Category.{v, u} C]
(J : CategoryTheory.GrothendieckTopology C)
(D : Type w)
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
[CategoryTheory.Limits.PreservesLimits (CategoryTheory.forget D)]
[(CategoryTheory.forget D).ReflectsIsomorphisms]
(P : CategoryTheory.Functor Cᵒᵖ D)
{Z : CategoryTheory.Functor Cᵒᵖ D}
(h : CategoryTheory.sheafify J P ⟶ Z)
:
CategoryTheory.CategoryStruct.comp (J.toSheafify P)
(CategoryTheory.CategoryStruct.comp (CategoryTheory.plusPlusIsoSheafify J D P).hom h) = CategoryTheory.CategoryStruct.comp (CategoryTheory.toSheafify J P) h
instance
CategoryTheory.instHasSheafifyOfHasFiniteLimits
{C : Type u}
[CategoryTheory.Category.{v, u} C]
(J : CategoryTheory.GrothendieckTopology C)
(D : Type w)
[CategoryTheory.Category.{max v u, w} D]
[∀ (P : CategoryTheory.Functor Cᵒᵖ D) (X : C) (S : J.Cover X), CategoryTheory.Limits.HasMultiequalizer (S.index P)]
[∀ (X : C), CategoryTheory.Limits.HasColimitsOfShape (J.Cover X)ᵒᵖ D]
[CategoryTheory.ConcreteCategory D]
[(X : C) → CategoryTheory.Limits.PreservesColimitsOfShape (J.Cover X)ᵒᵖ (CategoryTheory.forget D)]
[CategoryTheory.Limits.PreservesLimits (CategoryTheory.forget D)]
[(CategoryTheory.forget D).ReflectsIsomorphisms]
[CategoryTheory.Limits.HasFiniteLimits D]
:
Equations
- ⋯ = ⋯
instance
CategoryTheory.instFinitaryExtensiveSheafOfHasPullbacksOfHasSheafify
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{w', w} D]
[CategoryTheory.FinitaryExtensive D]
[CategoryTheory.Limits.HasPullbacks D]
[CategoryTheory.HasSheafify J D]
:
Equations
- ⋯ = ⋯
instance
CategoryTheory.instAdhesiveSheafOfHasPullbacksOfHasPushoutsOfHasSheafify
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
{D : Type w}
[CategoryTheory.Category.{w', w} D]
[CategoryTheory.Adhesive D]
[CategoryTheory.Limits.HasPullbacks D]
[CategoryTheory.Limits.HasPushouts D]
[CategoryTheory.HasSheafify J D]
:
Equations
- ⋯ = ⋯
instance
CategoryTheory.SheafOfTypes.finitary_extensive
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
[CategoryTheory.HasSheafify J (Type w)]
:
Equations
- ⋯ = ⋯
instance
CategoryTheory.SheafOfTypes.adhesive
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
[CategoryTheory.HasSheafify J (Type w)]
:
Equations
- ⋯ = ⋯
instance
CategoryTheory.SheafOfTypes.balanced
{C : Type u}
[CategoryTheory.Category.{v, u} C]
{J : CategoryTheory.GrothendieckTopology C}
[CategoryTheory.HasSheafify J (Type w)]
:
Equations
- ⋯ = ⋯