mathlib-initiative/mathlib-tactics huggingface dataset:
Module: Mathlib.CategoryTheory.Bicategory.Functor.StrictlyUnitary

Goal state before:
pp: case map₂
B : Type u₁
inst✝¹ : Bicategory B
C : Type u₂
inst✝ : Bicategory C
F : StrictlyUnitaryLaxFunctor B C
⊢ @PrelaxFunctorStruct.map₂ B inst✝¹.toQuiver (fun a b ↦ (homCategory a b).toQuiver) C inst✝.toQuiver
      (fun a b ↦ (homCategory a b).toQuiver) ((id B).comp F).toPrelaxFunctorStruct ≍
    @PrelaxFunctorStruct.map₂ B inst✝¹.toQuiver (fun a b ↦ (homCategory a b).toQuiver) C inst✝.toQuiver
      (fun a b ↦ (homCategory a b).toQuiver) F.toPrelaxFunctorStruct

Tactic:
·

Goal state after:
case map₂
B : Type u₁
inst✝¹ : Bicategory B
C : Type u₂
inst✝ : Bicategory C
F : StrictlyUnitaryLaxFunctor B C
⊢ @PrelaxFunctorStruct.map₂ B inst✝¹.toQuiver (fun a b ↦ (homCategory a b).toQuiver) C inst✝.toQuiver
      (fun a b ↦ (homCategory a b).toQuiver) ((id B).comp F).toPrelaxFunctorStruct ≍
    @PrelaxFunctorStruct.map₂ B inst✝¹.toQuiver (fun a b ↦ (homCategory a b).toQuiver) C inst✝.toQuiver
      (fun a b ↦ (homCategory a b).toQuiver) F.toPrelaxFunctorStruct
Module: Mathlib.CategoryTheory.Bicategory.Functor.StrictlyUnitary

Goal state before:
pp: case mapId
B : Type u₁
inst✝¹ : Bicategory B
C : Type u₂
inst✝ : Bicategory C
F : StrictlyUnitaryLaxFunctor B C
⊢ ((id B).comp F).mapId ≍ F.mapId

Tactic:
·

Goal state after:
case mapId
B : Type u₁
inst✝¹ : Bicategory B
C : Type u₂
inst✝ : Bicategory C
F : StrictlyUnitaryLaxFunctor B C
⊢ ((id B).comp F).mapId ≍ F.mapId
Module: Mathlib.CategoryTheory.Bicategory.Functor.StrictlyUnitary

Goal state before:
pp: case mapComp
B : Type u₁
inst✝¹ : Bicategory B
C : Type u₂
inst✝ : Bicategory C
F : StrictlyUnitaryLaxFunctor B C
⊢ @LaxFunctor.mapComp B inst✝¹ C inst✝ ((id B).comp F).toLaxFunctor ≍
    @LaxFunctor.mapComp B inst✝¹ C inst✝ F.toLaxFunctor

Tactic:
·

Goal state after:
case mapComp
B : Type u₁
inst✝¹ : Bicategory B
C : Type u₂
inst✝ : Bicategory C
F : StrictlyUnitaryLaxFunctor B C
⊢ @LaxFunctor.mapComp B inst✝¹ C inst✝ ((id B).comp F).toLaxFunctor ≍
    @LaxFunctor.mapComp B inst✝¹ C inst✝ F.toLaxFunctor
Module: Mathlib.CategoryTheory.Bicategory.Functor.StrictlyUnitary

Goal state before:
pp: case obj
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
x✝ : B
⊢ ((F.comp G).comp H).obj x✝ = (F.comp (G.comp H)).obj x✝

pp: case map
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ @Prefunctor.map B inst✝³.toQuiver E inst✝.toQuiver ((F.comp G).comp H).toPrefunctor ≍
    @Prefunctor.map B inst✝³.toQuiver E inst✝.toQuiver (F.comp (G.comp H)).toPrefunctor

pp: case map₂
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ @PrelaxFunctorStruct.map₂ B inst✝³.toQuiver (fun a b ↦ (homCategory a b).toQuiver) E inst✝.toQuiver
      (fun a b ↦ (homCategory a b).toQuiver) ((F.comp G).comp H).toPrelaxFunctorStruct ≍
    @PrelaxFunctorStruct.map₂ B inst✝³.toQuiver (fun a b ↦ (homCategory a b).toQuiver) E inst✝.toQuiver
      (fun a b ↦ (homCategory a b).toQuiver) (F.comp (G.comp H)).toPrelaxFunctorStruct

pp: case mapId
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ ((F.comp G).comp H).mapId ≍ (F.comp (G.comp H)).mapId

pp: case mapComp
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ @LaxFunctor.mapComp B inst✝³ E inst✝ ((F.comp G).comp H).toLaxFunctor ≍
    @LaxFunctor.mapComp B inst✝³ E inst✝ (F.comp (G.comp H)).toLaxFunctor

Tactic:
·

Goal state after:
case obj
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
x✝ : B
⊢ ((F.comp G).comp H).obj x✝ = (F.comp (G.comp H)).obj x✝
Module: Mathlib.CategoryTheory.Bicategory.Functor.StrictlyUnitary

Goal state before:
pp: case map
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ @Prefunctor.map B inst✝³.toQuiver E inst✝.toQuiver ((F.comp G).comp H).toPrefunctor ≍
    @Prefunctor.map B inst✝³.toQuiver E inst✝.toQuiver (F.comp (G.comp H)).toPrefunctor

Tactic:
·

Goal state after:
case map
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ @Prefunctor.map B inst✝³.toQuiver E inst✝.toQuiver ((F.comp G).comp H).toPrefunctor ≍
    @Prefunctor.map B inst✝³.toQuiver E inst✝.toQuiver (F.comp (G.comp H)).toPrefunctor
Module: Mathlib.CategoryTheory.Bicategory.Functor.StrictlyUnitary

Goal state before:
pp: case map₂
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ @PrelaxFunctorStruct.map₂ B inst✝³.toQuiver (fun a b ↦ (homCategory a b).toQuiver) E inst✝.toQuiver
      (fun a b ↦ (homCategory a b).toQuiver) ((F.comp G).comp H).toPrelaxFunctorStruct ≍
    @PrelaxFunctorStruct.map₂ B inst✝³.toQuiver (fun a b ↦ (homCategory a b).toQuiver) E inst✝.toQuiver
      (fun a b ↦ (homCategory a b).toQuiver) (F.comp (G.comp H)).toPrelaxFunctorStruct

Tactic:
·

Goal state after:
case map₂
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ @PrelaxFunctorStruct.map₂ B inst✝³.toQuiver (fun a b ↦ (homCategory a b).toQuiver) E inst✝.toQuiver
      (fun a b ↦ (homCategory a b).toQuiver) ((F.comp G).comp H).toPrelaxFunctorStruct ≍
    @PrelaxFunctorStruct.map₂ B inst✝³.toQuiver (fun a b ↦ (homCategory a b).toQuiver) E inst✝.toQuiver
      (fun a b ↦ (homCategory a b).toQuiver) (F.comp (G.comp H)).toPrelaxFunctorStruct
Module: Mathlib.CategoryTheory.Bicategory.Functor.StrictlyUnitary

Goal state before:
pp: case mapId
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ ((F.comp G).comp H).mapId ≍ (F.comp (G.comp H)).mapId

Tactic:
·

Goal state after:
case mapId
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ ((F.comp G).comp H).mapId ≍ (F.comp (G.comp H)).mapId
Module: Mathlib.CategoryTheory.Bicategory.Functor.StrictlyUnitary

Goal state before:
pp: case mapComp
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ @LaxFunctor.mapComp B inst✝³ E inst✝ ((F.comp G).comp H).toLaxFunctor ≍
    @LaxFunctor.mapComp B inst✝³ E inst✝ (F.comp (G.comp H)).toLaxFunctor

Tactic:
·

Goal state after:
case mapComp
B : Type u₁
inst✝³ : Bicategory B
C : Type u₂
inst✝² : Bicategory C
D : Type u₃
inst✝¹ : Bicategory D
E : Type u₄
inst✝ : Bicategory E
F : StrictlyUnitaryLaxFunctor B C
G : StrictlyUnitaryLaxFunctor C D
H : StrictlyUnitaryLaxFunctor D E
⊢ @LaxFunctor.mapComp B inst✝³ E inst✝ ((F.comp G).comp H).toLaxFunctor ≍
    @LaxFunctor.mapComp B inst✝³ E inst✝ (F.comp (G.comp H)).toLaxFunctor
Module: Mathlib.AlgebraicGeometry.Group.Affine

Goal state before:
pp: case h₁
R✝ R A : CommRingCat
inst✝¹ : Bialgebra ↑R ↑A
inst✝ : IsCocomm ↑R ↑A
this :
  (pullbackSpecIso ↑R ↑A ↑A).hom ≫
      Spec.map
        (Under.Hom.right (↑(Bialgebra.comulBialgHom ↑R ↑A)).toUnder ≫
          Under.Hom.right (↑↑(Bialgebra.TensorProduct.comm ↑R ↑A ↑A)).toUnder) =
    (pullbackSpecIso ↑R ↑A ↑A).hom ≫ Spec.map (Under.Hom.right (↑(Bialgebra.comulBialgHom ↑R ↑A)).toUnder)
h₁ :
  ↑Algebra.TensorProduct.includeRight =
    (↑(Bialgebra.TensorProduct.comm ↑R ↑A ↑A)).comp Algebra.TensorProduct.includeLeftRingHom
h₂ :
  Algebra.TensorProduct.includeLeftRingHom =
    (↑(Bialgebra.TensorProduct.comm ↑R ↑A ↑A)).comp ↑Algebra.TensorProduct.includeRight
e_1✝ :
  (pullback (Spec A ↘ Spec R) (Spec A ↘ Spec R) ⟶ Spec A) =
    (pullback (Spec.map (CommRingCat.ofHom (algebraMap ↑R ↑A))) (Spec.map (CommRingCat.ofHom (algebraMap ↑R ↑A))) ⟶
      ((algSpec R).obj (op (CommAlgCat.of ↑R ↑A))).left)
⊢ ((pullbackSpecIso ↑R ↑A ↑A).inv ≫ (pullbackSymmetry (Spec A ↘ Spec R) (Spec A ↘ Spec R)).hom) ≫
      pullback.snd (Spec A ↘ Spec R) (Spec A ↘ Spec R) =
    (Spec.map (Under.Hom.right (↑↑(Bialgebra.TensorProduct.comm ↑R ↑A ↑A)).toUnder) ≫ (pullbackSpecIso ↑R ↑A ↑A).inv) ≫
      pullback.snd (Spec A ↘ Spec R) (Spec A ↘ Spec R)

Tactic:
·

Goal state after:
case h₁
R✝ R A : CommRingCat
inst✝¹ : Bialgebra ↑R ↑A
inst✝ : IsCocomm ↑R ↑A
this :
  (pullbackSpecIso ↑R ↑A ↑A).hom ≫
      Spec.map
        (Under.Hom.right (↑(Bialgebra.comulBialgHom ↑R ↑A)).toUnder ≫
          Under.Hom.right (↑↑(Bialgebra.TensorProduct.comm ↑R ↑A ↑A)).toUnder) =
    (pullbackSpecIso ↑R ↑A ↑A).hom ≫ Spec.map (Under.Hom.right (↑(Bialgebra.comulBialgHom ↑R ↑A)).toUnder)
h₁ :
  ↑Algebra.TensorProduct.includeRight =
    (↑(Bialgebra.TensorProduct.comm ↑R ↑A ↑A)).comp Algebra.TensorProduct.includeLeftRingHom
h₂ :
  Algebra.TensorProduct.includeLeftRingHom =
    (↑(Bialgebra.TensorProduct.comm ↑R ↑A ↑A)).comp ↑Algebra.TensorProduct.includeRight
e_1✝ :
  (pullback (Spec A ↘ Spec R) (Spec A ↘ Spec R) ⟶ Spec A) =
    (pullback (Spec.map (CommRingCat.ofHom (algebraMap ↑R ↑A))) (Spec.map (CommRingCat.ofHom (algebraMap ↑R ↑A))) ⟶
      ((algSpec R).obj (op (CommAlgCat.of ↑R ↑A))).left)
⊢ ((pullbackSpecIso ↑R ↑A ↑A).inv ≫ (pullbackSymmetry (Spec A ↘ Spec R) (Spec A ↘ Spec R)).hom) ≫
      pullback.snd (Spec A ↘ Spec R) (Spec A ↘ Spec R) =
    (Spec.map (Under.Hom.right (↑↑(Bialgebra.TensorProduct.comm ↑R ↑A ↑A)).toUnder) ≫ (pullbackSpecIso ↑R ↑A ↑A).inv) ≫
      pullback.snd (Spec A ↘ Spec R) (Spec A ↘ Spec R)
Module: Mathlib.AlgebraicGeometry.Group.Affine

Goal state before:
pp: case e_a.h₀
R✝¹ R✝ A : CommRingCat
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Bialgebra R S
inst✝ : Algebra R T
f g : WithConv (S →ₐ[R] T)
⊢ ((map (CommRingCat.ofHom ↑(Algebra.TensorProduct.lmul' R)) ≫
          map (CommRingCat.ofHom ↑(Algebra.TensorProduct.map f.ofConv g.ofConv))) ≫
        (pullbackSpecIso R S S).inv) ≫
      pullback.fst (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))
        (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R)) =
    pullback.lift (map (CommRingCat.ofHom ↑f.ofConv)) (map (CommRingCat.ofHom ↑g.ofConv)) ⋯ ≫
      pullback.fst (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))
        (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))

Tactic:
·

Goal state after:
case e_a.h₀
R✝¹ R✝ A : CommRingCat
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Bialgebra R S
inst✝ : Algebra R T
f g : WithConv (S →ₐ[R] T)
⊢ ((map (CommRingCat.ofHom ↑(Algebra.TensorProduct.lmul' R)) ≫
          map (CommRingCat.ofHom ↑(Algebra.TensorProduct.map f.ofConv g.ofConv))) ≫
        (pullbackSpecIso R S S).inv) ≫
      pullback.fst (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))
        (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R)) =
    pullback.lift (map (CommRingCat.ofHom ↑f.ofConv)) (map (CommRingCat.ofHom ↑g.ofConv)) ⋯ ≫
      pullback.fst (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))
        (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))
Module: Mathlib.AlgebraicGeometry.Group.Affine

Goal state before:
pp: case h₁
R✝¹ R✝ A : CommRingCat
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Bialgebra R S
inst✝ : Algebra R T
f g : WithConv (S →ₐ[R] T)
⊢ ((map (CommRingCat.ofHom ↑(Algebra.TensorProduct.lmul' R)) ≫
          map (CommRingCat.ofHom ↑(Algebra.TensorProduct.map f.ofConv g.ofConv))) ≫
        (pullbackSpecIso R S S).inv) ≫
      pullback.snd (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))
        (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R)) =
    pullback.lift (map (CommRingCat.ofHom ↑f.ofConv)) (map (CommRingCat.ofHom ↑g.ofConv)) ⋯ ≫
      pullback.snd (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))
        (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))

Tactic:
·

Goal state after:
case h₁
R✝¹ R✝ A : CommRingCat
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Bialgebra R S
inst✝ : Algebra R T
f g : WithConv (S →ₐ[R] T)
⊢ ((map (CommRingCat.ofHom ↑(Algebra.TensorProduct.lmul' R)) ≫
          map (CommRingCat.ofHom ↑(Algebra.TensorProduct.map f.ofConv g.ofConv))) ≫
        (pullbackSpecIso R S S).inv) ≫
      pullback.snd (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))
        (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R)) =
    pullback.lift (map (CommRingCat.ofHom ↑f.ofConv)) (map (CommRingCat.ofHom ↑g.ofConv)) ⋯ ≫
      pullback.snd (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))
        (Spec (CommRingCat.of S) ↘ Spec (CommRingCat.of R))
Module: Mathlib.AlgebraicGeometry.Group.Affine

Goal state before:
pp: case h₀
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Algebra R S
inst✝ : Algebra R T
⊢ ((pullbackSpecIso' R T S).inv ≫ (pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom) ≫
      pullback.fst (Spec (of S) ↘ Spec (of R)) (Spec (of T) ↘ Spec (of R)) =
    (Spec.map (ofHom ↑(Algebra.TensorProduct.comm R S T)) ≫ (pullbackSpecIso' R S T).inv) ≫
      pullback.fst (Spec (of S) ↘ Spec (of R)) (Spec (of T) ↘ Spec (of R))

pp: case h₁
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Algebra R S
inst✝ : Algebra R T
⊢ ((pullbackSpecIso' R T S).inv ≫ (pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom) ≫
      pullback.snd (Spec (of S) ↘ Spec (of R)) (Spec (of T) ↘ Spec (of R)) =
    (Spec.map (ofHom ↑(Algebra.TensorProduct.comm R S T)) ≫ (pullbackSpecIso' R S T).inv) ≫
      pullback.snd (Spec (of S) ↘ Spec (of R)) (Spec (of T) ↘ Spec (of R))

Tactic:
·

Goal state after:
case h₀
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Algebra R S
inst✝ : Algebra R T
⊢ ((pullbackSpecIso' R T S).inv ≫ (pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom) ≫
      pullback.fst (Spec (of S) ↘ Spec (of R)) (Spec (of T) ↘ Spec (of R)) =
    (Spec.map (ofHom ↑(Algebra.TensorProduct.comm R S T)) ≫ (pullbackSpecIso' R S T).inv) ≫
      pullback.fst (Spec (of S) ↘ Spec (of R)) (Spec (of T) ↘ Spec (of R))
Module: Mathlib.AlgebraicGeometry.Group.Affine

Goal state before:
pp: case h₀
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Algebra R S
inst✝ : Algebra R T
⊢ pullback.fst (pullback.snd (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S))))
        (pullback.snd (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S)))) ≫
      pullback.fst (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S))) =
    Over.Hom.left
        (Hom.asOver
            ((pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom ≫
              (pullbackSpecIso' R S T).hom)
            (Spec (of S)) ⊗ₘ
          Hom.asOver
            ((pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom ≫
              (pullbackSpecIso' R S T).hom)
            (Spec (of S))) ≫
      (pullbackSpecIso S (S ⊗[R] T) (S ⊗[R] T)).hom ≫
        Spec.map (ofHom (mapRingHom (algebraMap R S) ↑includeRight ↑includeRight ⋯ ⋯)) ≫
          Spec.map (ofHom includeLeftRingHom)

pp: case h₁
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Algebra R S
inst✝ : Algebra R T
⊢ pullback.snd (pullback.snd (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S))))
        (pullback.snd (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S)))) ≫
      pullback.fst (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S))) =
    Over.Hom.left
        (Hom.asOver
            ((pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom ≫
              (pullbackSpecIso' R S T).hom)
            (Spec (of S)) ⊗ₘ
          Hom.asOver
            ((pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom ≫
              (pullbackSpecIso' R S T).hom)
            (Spec (of S))) ≫
      (pullbackSpecIso S (S ⊗[R] T) (S ⊗[R] T)).hom ≫
        Spec.map (ofHom (mapRingHom (algebraMap R S) ↑includeRight ↑includeRight ⋯ ⋯)) ≫ Spec.map (ofHom ↑includeRight)

Tactic:
·

Goal state after:
case h₀
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Algebra R S
inst✝ : Algebra R T
⊢ pullback.fst (pullback.snd (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S))))
        (pullback.snd (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S)))) ≫
      pullback.fst (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S))) =
    Over.Hom.left
        (Hom.asOver
            ((pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom ≫
              (pullbackSpecIso' R S T).hom)
            (Spec (of S)) ⊗ₘ
          Hom.asOver
            ((pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom ≫
              (pullbackSpecIso' R S T).hom)
            (Spec (of S))) ≫
      (pullbackSpecIso S (S ⊗[R] T) (S ⊗[R] T)).hom ≫
        Spec.map (ofHom (mapRingHom (algebraMap R S) ↑includeRight ↑includeRight ⋯ ⋯)) ≫
          Spec.map (ofHom includeLeftRingHom)
Module: Mathlib.RingTheory.Etale.QuasiFinite

Goal state before:
pp: case h.zero.refine_2
R : Type u
S : Type (max u v)
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : Algebra R S
inst✝¹ : Module.Finite R S
p : Ideal R
inst✝ : p.IsPrime
this✝ : IsArtinianRing (p.ResidueField ⊗[R] S)
hpSfin : (p.primesOver S).Finite
IH :
  ∀ m < 0,
    ∀ {R : Type u} {S : Type (max u v)} [inst : CommRing R] [inst_1 : CommRing S] [inst_2 : Algebra R S]
      [Module.Finite R S] (p : Ideal R) [inst_4 : p.IsPrime],
      (p.primesOver S).ncard = m →
        ∃ R' x x_1,
          ∃ (_ : Etale R R'),
            ∃ P,
              ∃ (x_3 : P.IsPrime) (x_4 : P.LiesOver p),
                ∃ n e,
                  ∃ (_ : CompleteOrthogonalIdempotents e),
                    ∃ P',
                      ∃ (_ : ∀ (i : Fin n), (P' i).IsPrime) (_ : ∀ (i : Fin n), (P' i).LiesOver P),
                        Function.Bijective ⇑(Ideal.ResidueField.mapₐ p P (ofId R R') ⋯) ∧
                          (∀ (i : Fin n), e i.castSucc ∉ P' i) ∧
                            ∀ (P'' : Ideal (R' ⊗[R] S)),
                              P''.IsPrime →
                                P''.LiesOver P → e (Fin.last n) ∈ P'' ∧ ∀ (i : Fin n), e i.castSucc ∉ P'' → P'' = P' i
h : (p.primesOver S).ncard = 0
this : p.primesOver S = ∅
⊢ ∀ (P'' : Ideal (R ⊗[R] S)),
    P''.IsPrime →
      P''.LiesOver p → 1 (Fin.last 0) ∈ P'' ∧ ∀ (i : Fin 0), 1 i.castSucc ∉ P'' → P'' = (fun a ↦ nomatch a) i

Tactic:
·

Goal state after:
case h.zero.refine_2
R : Type u
S : Type (max u v)
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : Algebra R S
inst✝¹ : Module.Finite R S
p : Ideal R
inst✝ : p.IsPrime
this✝ : IsArtinianRing (p.ResidueField ⊗[R] S)
hpSfin : (p.primesOver S).Finite
IH :
  ∀ m < 0,
    ∀ {R : Type u} {S : Type (max u v)} [inst : CommRing R] [inst_1 : CommRing S] [inst_2 : Algebra R S]
      [Module.Finite R S] (p : Ideal R) [inst_4 : p.IsPrime],
      (p.primesOver S).ncard = m →
        ∃ R' x x_1,
          ∃ (_ : Etale R R'),
            ∃ P,
              ∃ (x_3 : P.IsPrime) (x_4 : P.LiesOver p),
                ∃ n e,
                  ∃ (_ : CompleteOrthogonalIdempotents e),
                    ∃ P',
                      ∃ (_ : ∀ (i : Fin n), (P' i).IsPrime) (_ : ∀ (i : Fin n), (P' i).LiesOver P),
                        Function.Bijective ⇑(Ideal.ResidueField.mapₐ p P (ofId R R') ⋯) ∧
                          (∀ (i : Fin n), e i.castSucc ∉ P' i) ∧
                            ∀ (P'' : Ideal (R' ⊗[R] S)),
                              P''.IsPrime →
                                P''.LiesOver P → e (Fin.last n) ∈ P'' ∧ ∀ (i : Fin n), e i.castSucc ∉ P'' → P'' = P' i
h : (p.primesOver S).ncard = 0
this : p.primesOver S = ∅
⊢ ∀ (P'' : Ideal (R ⊗[R] S)),
    P''.IsPrime →
      P''.LiesOver p → 1 (Fin.last 0) ∈ P'' ∧ ∀ (i : Fin 0), 1 i.castSucc ∉ P'' → P'' = (fun a ↦ nomatch a) i
Module: Mathlib.AlgebraicGeometry.Group.Affine

Goal state before:
pp: case h₁
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Algebra R S
inst✝ : Algebra R T
⊢ pullback.snd (pullback.snd (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S))))
        (pullback.snd (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S)))) ≫
      pullback.fst (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S))) =
    Over.Hom.left
        (Hom.asOver
            ((pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom ≫
              (pullbackSpecIso' R S T).hom)
            (Spec (of S)) ⊗ₘ
          Hom.asOver
            ((pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom ≫
              (pullbackSpecIso' R S T).hom)
            (Spec (of S))) ≫
      (pullbackSpecIso S (S ⊗[R] T) (S ⊗[R] T)).hom ≫
        Spec.map (ofHom (mapRingHom (algebraMap R S) ↑includeRight ↑includeRight ⋯ ⋯)) ≫ Spec.map (ofHom ↑includeRight)

Tactic:
·

Goal state after:
case h₁
R S T : Type u
inst✝⁴ : CommRing R
inst✝³ : CommRing S
inst✝² : CommRing T
inst✝¹ : Algebra R S
inst✝ : Algebra R T
⊢ pullback.snd (pullback.snd (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S))))
        (pullback.snd (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S)))) ≫
      pullback.fst (Spec.map (ofHom (algebraMap R T))) (Spec.map (ofHom (algebraMap R S))) =
    Over.Hom.left
        (Hom.asOver
            ((pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom ≫
              (pullbackSpecIso' R S T).hom)
            (Spec (of S)) ⊗ₘ
          Hom.asOver
            ((pullbackSymmetry (Spec (of T) ↘ Spec (of R)) (Spec (of S) ↘ Spec (of R))).hom ≫
              (pullbackSpecIso' R S T).hom)
            (Spec (of S))) ≫
      (pullbackSpecIso S (S ⊗[R] T) (S ⊗[R] T)).hom ≫
        Spec.map (ofHom (mapRingHom (algebraMap R S) ↑includeRight ↑includeRight ⋯ ⋯)) ≫ Spec.map (ofHom ↑includeRight)