mathlib-initiative/mathlib-tactics huggingface dataset:
Module: Mathlib.Topology.Sheaves.SheafCondition.UniqueGluing

Goal state before:
pp: case refine_1
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
V : Opens ↑X
iUV : (i : ι) → U i ⟶ V
hcover : V ≤ iSup U
sf : (i : ι) → ToType (F.obj.obj (op (U i)))
h : IsCompatible F.obj U sf
V_eq_supr_U : V = iSup U
gl : ToType (F.obj.obj (op (iSup U)))
gl_spec : IsGluing F.obj U sf gl
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
⊢ (fun s ↦ ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (iUV i).op)) s = sf i)
    ((ConcreteCategory.hom (F.obj.map (eqToHom V_eq_supr_U).op)) gl)

pp: case refine_2
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
V : Opens ↑X
iUV : (i : ι) → U i ⟶ V
hcover : V ≤ iSup U
sf : (i : ι) → ToType (F.obj.obj (op (U i)))
h : IsCompatible F.obj U sf
V_eq_supr_U : V = iSup U
gl : ToType (F.obj.obj (op (iSup U)))
gl_spec : IsGluing F.obj U sf gl
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
⊢ ∀ (y : ToType (F.obj.obj (op V))),
    (fun s ↦ ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (iUV i).op)) s = sf i) y →
      y = (ConcreteCategory.hom (F.obj.map (eqToHom V_eq_supr_U).op)) gl

Tactic:
·

Goal state after:
case refine_1
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
V : Opens ↑X
iUV : (i : ι) → U i ⟶ V
hcover : V ≤ iSup U
sf : (i : ι) → ToType (F.obj.obj (op (U i)))
h : IsCompatible F.obj U sf
V_eq_supr_U : V = iSup U
gl : ToType (F.obj.obj (op (iSup U)))
gl_spec : IsGluing F.obj U sf gl
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
⊢ (fun s ↦ ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (iUV i).op)) s = sf i)
    ((ConcreteCategory.hom (F.obj.map (eqToHom V_eq_supr_U).op)) gl)
Module: Mathlib.Topology.Sheaves.SheafCondition.UniqueGluing

Goal state before:
pp: case refine_2
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
V : Opens ↑X
iUV : (i : ι) → U i ⟶ V
hcover : V ≤ iSup U
sf : (i : ι) → ToType (F.obj.obj (op (U i)))
h : IsCompatible F.obj U sf
V_eq_supr_U : V = iSup U
gl : ToType (F.obj.obj (op (iSup U)))
gl_spec : IsGluing F.obj U sf gl
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
⊢ ∀ (y : ToType (F.obj.obj (op V))),
    (fun s ↦ ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (iUV i).op)) s = sf i) y →
      y = (ConcreteCategory.hom (F.obj.map (eqToHom V_eq_supr_U).op)) gl

Tactic:
·

Goal state after:
case refine_2
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
V : Opens ↑X
iUV : (i : ι) → U i ⟶ V
hcover : V ≤ iSup U
sf : (i : ι) → ToType (F.obj.obj (op (U i)))
h : IsCompatible F.obj U sf
V_eq_supr_U : V = iSup U
gl : ToType (F.obj.obj (op (iSup U)))
gl_spec : IsGluing F.obj U sf gl
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
⊢ ∀ (y : ToType (F.obj.obj (op V))),
    (fun s ↦ ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (iUV i).op)) s = sf i) y →
      y = (ConcreteCategory.hom (F.obj.map (eqToHom V_eq_supr_U).op)) gl
Module: Mathlib.Topology.Sheaves.SheafCondition.UniqueGluing

Goal state before:
pp: case e'_2
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
V : Opens ↑X
iUV : (i : ι) → U i ⟶ V
hcover : V ≤ iSup U
sf : (i : ι) → ToType (F.obj.obj (op (U i)))
h : IsCompatible F.obj U sf
V_eq_supr_U : V = iSup U
gl : ToType (F.obj.obj (op (iSup U)))
gl_spec : IsGluing F.obj U sf gl
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
gl' : ToType (F.obj.obj (op V))
gl'_spec : ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (iUV i).op)) gl' = sf i
⊢ gl' = (ConcreteCategory.hom (F.obj.map ((eqToHom ⋯).op ≫ (eqToHom V_eq_supr_U).op))) gl'

pp: case refine_2.convert_3
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
V : Opens ↑X
iUV : (i : ι) → U i ⟶ V
hcover : V ≤ iSup U
sf : (i : ι) → ToType (F.obj.obj (op (U i)))
h : IsCompatible F.obj U sf
V_eq_supr_U : V = iSup U
gl : ToType (F.obj.obj (op (iSup U)))
gl_spec : IsGluing F.obj U sf gl
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
gl' : ToType (F.obj.obj (op V))
gl'_spec : ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (iUV i).op)) gl' = sf i
i : ι
⊢ (ConcreteCategory.hom (F.obj.map ((eqToHom ⋯).op ≫ (leSupr U i).op))) gl' = sf i

Tactic:
·

Goal state after:
case e'_2
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
V : Opens ↑X
iUV : (i : ι) → U i ⟶ V
hcover : V ≤ iSup U
sf : (i : ι) → ToType (F.obj.obj (op (U i)))
h : IsCompatible F.obj U sf
V_eq_supr_U : V = iSup U
gl : ToType (F.obj.obj (op (iSup U)))
gl_spec : IsGluing F.obj U sf gl
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
gl' : ToType (F.obj.obj (op V))
gl'_spec : ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (iUV i).op)) gl' = sf i
⊢ gl' = (ConcreteCategory.hom (F.obj.map ((eqToHom ⋯).op ≫ (eqToHom V_eq_supr_U).op))) gl'
Module: Mathlib.Topology.Sheaves.SheafCondition.UniqueGluing

Goal state before:
pp: case refine_2.convert_3
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
V : Opens ↑X
iUV : (i : ι) → U i ⟶ V
hcover : V ≤ iSup U
sf : (i : ι) → ToType (F.obj.obj (op (U i)))
h : IsCompatible F.obj U sf
V_eq_supr_U : V = iSup U
gl : ToType (F.obj.obj (op (iSup U)))
gl_spec : IsGluing F.obj U sf gl
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
gl' : ToType (F.obj.obj (op V))
gl'_spec : ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (iUV i).op)) gl' = sf i
i : ι
⊢ (ConcreteCategory.hom (F.obj.map ((eqToHom ⋯).op ≫ (leSupr U i).op))) gl' = sf i

Tactic:
·

Goal state after:
case refine_2.convert_3
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
V : Opens ↑X
iUV : (i : ι) → U i ⟶ V
hcover : V ≤ iSup U
sf : (i : ι) → ToType (F.obj.obj (op (U i)))
h : IsCompatible F.obj U sf
V_eq_supr_U : V = iSup U
gl : ToType (F.obj.obj (op (iSup U)))
gl_spec : IsGluing F.obj U sf gl
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
gl' : ToType (F.obj.obj (op V))
gl'_spec : ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (iUV i).op)) gl' = sf i
i : ι
⊢ (ConcreteCategory.hom (F.obj.map ((eqToHom ⋯).op ≫ (leSupr U i).op))) gl' = sf i
Module: Mathlib.Topology.Sheaves.SheafCondition.PairwiseIntersections

Goal state before:
pp: case single.single
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (single i)
i' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (single i')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := single i, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := single i, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := single i', hom := b }

pp: case single.pair
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (single i)
i' j' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i' j')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := single i, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := single i, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := Pairwise.pair i' j', hom := b }

pp: case pair.single
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i j : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i j)
i' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (single i')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := single i', hom := b }

pp: case pair.pair
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i j : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i j)
i' j' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i' j')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := Pairwise.pair i' j', hom := b }

Tactic:
·

Goal state after:
case single.single
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (single i)
i' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (single i')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := single i, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := single i, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := single i', hom := b }
Module: Mathlib.Topology.Sheaves.SheafCondition.UniqueGluing

Goal state before:
pp: C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
s t : ToType (F.obj.obj (op (iSup U)))
h :
  ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (leSupr U i).op)) s = (ConcreteCategory.hom (F.obj.map (leSupr U i).op)) t
sf : (i : ι) → ToType (F.obj.obj (op (U i))) := ⋯
sf_compatible : IsCompatible F.obj U sf
gl : ToType (F.obj.obj (op (iSup U)))
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
⊢ s = gl

pp: C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
s t : ToType (F.obj.obj (op (iSup U)))
h :
  ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (leSupr U i).op)) s = (ConcreteCategory.hom (F.obj.map (leSupr U i).op)) t
sf : (i : ι) → ToType (F.obj.obj (op (U i))) := ⋯
sf_compatible : IsCompatible F.obj U sf
gl : ToType (F.obj.obj (op (iSup U)))
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
⊢ gl = t

Tactic:
·

Goal state after:
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
s t : ToType (F.obj.obj (op (iSup U)))
h :
  ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (leSupr U i).op)) s = (ConcreteCategory.hom (F.obj.map (leSupr U i).op)) t
sf : (i : ι) → ToType (F.obj.obj (op (U i))) := ⋯
sf_compatible : IsCompatible F.obj U sf
gl : ToType (F.obj.obj (op (iSup U)))
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
⊢ s = gl
Module: Mathlib.Topology.Sheaves.SheafCondition.PairwiseIntersections

Goal state before:
pp: case single.pair
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (single i)
i' j' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i' j')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := single i, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := single i, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := Pairwise.pair i' j', hom := b }

pp: case pair.single
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i j : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i j)
i' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (single i')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := single i', hom := b }

pp: case pair.pair
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i j : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i j)
i' j' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i' j')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := Pairwise.pair i' j', hom := b }

Tactic:
·

Goal state after:
case single.pair
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (single i)
i' j' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i' j')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := single i, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := single i, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := Pairwise.pair i' j', hom := b }
Module: Mathlib.Topology.Sheaves.SheafCondition.UniqueGluing

Goal state before:
pp: C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
s t : ToType (F.obj.obj (op (iSup U)))
h :
  ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (leSupr U i).op)) s = (ConcreteCategory.hom (F.obj.map (leSupr U i).op)) t
sf : (i : ι) → ToType (F.obj.obj (op (U i))) := ⋯
sf_compatible : IsCompatible F.obj U sf
gl : ToType (F.obj.obj (op (iSup U)))
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
⊢ gl = t

Tactic:
·

Goal state after:
C : Type u_1
inst✝⁵ : Category.{v_1, u_1} C
FC : C → C → Type u_2
CC : C → Type u_3
inst✝⁴ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)
inst✝³ : ConcreteCategory C FC
inst✝² : HasLimitsOfSize.{x, x, v_1, u_1} C
inst✝¹ : (CategoryTheory.forget C).ReflectsIsomorphisms
inst✝ : PreservesLimitsOfSize.{x, x, v_1, u_3, u_1, u_3 + 1} (CategoryTheory.forget C)
X : TopCat
F : Sheaf C X
ι : Type u_4
U : ι → Opens ↑X
s t : ToType (F.obj.obj (op (iSup U)))
h :
  ∀ (i : ι), (ConcreteCategory.hom (F.obj.map (leSupr U i).op)) s = (ConcreteCategory.hom (F.obj.map (leSupr U i).op)) t
sf : (i : ι) → ToType (F.obj.obj (op (U i))) := ⋯
sf_compatible : IsCompatible F.obj U sf
gl : ToType (F.obj.obj (op (iSup U)))
gl_uniq : ∀ (y : ToType (F.obj.obj (op (iSup U)))), (fun s ↦ IsGluing F.obj U sf s) y → y = gl
⊢ gl = t
Module: Mathlib.Topology.Sheaves.SheafCondition.PairwiseIntersections

Goal state before:
pp: case pair.single
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i j : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i j)
i' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (single i')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := single i', hom := b }

pp: case pair.pair
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i j : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i j)
i' j' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i' j')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := Pairwise.pair i' j', hom := b }

Tactic:
·

Goal state after:
case pair.single
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i j : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i j)
i' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (single i')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := single i', hom := b }
Module: Mathlib.Topology.Sheaves.SheafCondition.PairwiseIntersections

Goal state before:
pp: case pair.pair
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i j : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i j)
i' j' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i' j')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := Pairwise.pair i' j', hom := b }

Tactic:
·

Goal state after:
case pair.pair
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
ι : Type u_2
U : ι → Opens ↑X
V : OpensLeCover U
i j : ι
a : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i j)
i' j' : ι
b : (Functor.fromPUnit V).obj { as := PUnit.unit } ⟶ (pairwiseToOpensLeCover U).obj (Pairwise.pair i' j')
⊢ ∃ l,
    List.IsChain Zag ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l) ∧
      ({ left := { as := PUnit.unit }, right := Pairwise.pair i j, hom := a } :: l).getLast ⋯ =
        { left := { as := PUnit.unit }, right := Pairwise.pair i' j', hom := b }
Module: Mathlib.Topology.Sheaves.SheafCondition.PairwiseIntersections

Goal state before:
pp: case mp
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
F : Sheaf C X
U V : Opens ↑X
s : PullbackCone (F.obj.map (homOfLE ⋯).op) (F.obj.map (homOfLE ⋯).op)
ι : ULift.{w, 0} WalkingPair → Opens ↑X := ⋯
x✝ : ↑X
⊢ x✝ ∈ ↑(U ⊔ V) → ∃ i, x✝ ∈ ↑(WalkingPair.casesOn i.down U V)

pp: case mpr
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
F : Sheaf C X
U V : Opens ↑X
s : PullbackCone (F.obj.map (homOfLE ⋯).op) (F.obj.map (homOfLE ⋯).op)
ι : ULift.{w, 0} WalkingPair → Opens ↑X := ⋯
x✝ : ↑X
⊢ (∃ i, x✝ ∈ ↑(WalkingPair.casesOn i.down U V)) → x✝ ∈ ↑(U ⊔ V)

Tactic:
·

Goal state after:
case mp
C : Type u_1
inst✝ : Category.{v_1, u_1} C
X : TopCat
F : Sheaf C X
U V : Opens ↑X
s : PullbackCone (F.obj.map (homOfLE ⋯).op) (F.obj.map (homOfLE ⋯).op)
ι : ULift.{w, 0} WalkingPair → Opens ↑X := ⋯
x✝ : ↑X
⊢ x✝ ∈ ↑(U ⊔ V) → ∃ i, x✝ ∈ ↑(WalkingPair.casesOn i.down U V)