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[Merged by Bors] - chore: classify broken ext porting notes #11042

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[Merged by Bors] - chore: classify broken ext porting notes #11042

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12 changes: 6 additions & 6 deletions Mathlib/Algebra/Category/ModuleCat/Adjunctions.lean
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Original file line number Diff line number Diff line change
Expand Up @@ -89,7 +89,7 @@ def μ (α β : Type u) : (free R).obj α ⊗ (free R).obj β ≅ (free R).obj (
theorem μ_natural {X Y X' Y' : Type u} (f : X ⟶ Y) (g : X' ⟶ Y') :
((free R).map f ⊗ (free R).map g) ≫ (μ R Y Y').hom = (μ R X X').hom ≫ (free R).map (f ⊗ g) := by
intros
-- Porting note: broken ext
-- Porting note (#11041): broken ext
apply TensorProduct.ext
apply Finsupp.lhom_ext'
intro x
Expand All @@ -114,7 +114,7 @@ theorem left_unitality (X : Type u) :
(λ_ ((free R).obj X)).hom =
(ε R ⊗ 𝟙 ((free R).obj X)) ≫ (μ R (𝟙_ (Type u)) X).hom ≫ map (free R).obj (λ_ X).hom := by
intros
-- Porting note: broken ext
-- Porting note (#11041): broken ext
apply TensorProduct.ext
apply LinearMap.ext_ring
apply Finsupp.lhom_ext'
Expand All @@ -135,7 +135,7 @@ theorem right_unitality (X : Type u) :
(ρ_ ((free R).obj X)).hom =
(𝟙 ((free R).obj X) ⊗ ε R) ≫ (μ R X (𝟙_ (Type u))).hom ≫ map (free R).obj (ρ_ X).hom := by
intros
-- Porting note: broken ext
-- Porting note (#11041): broken ext
apply TensorProduct.ext
apply Finsupp.lhom_ext'
intro x
Expand All @@ -157,7 +157,7 @@ theorem associativity (X Y Z : Type u) :
(α_ ((free R).obj X) ((free R).obj Y) ((free R).obj Z)).hom ≫
(𝟙 ((free R).obj X) ⊗ (μ R Y Z).hom) ≫ (μ R X (Y ⊗ Z)).hom := by
intros
-- Porting note: broken ext
-- Porting note (#11041): broken ext
apply TensorProduct.ext
apply TensorProduct.ext
apply Finsupp.lhom_ext'
Expand Down Expand Up @@ -198,13 +198,13 @@ instance : LaxMonoidal.{u} (free R).obj := .ofTensorHom

instance : IsIso (@LaxMonoidal.ε _ _ _ _ _ _ (free R).obj _ _) := by
refine' ⟨⟨Finsupp.lapply PUnit.unit, ⟨_, _⟩⟩⟩
· -- Porting note: broken ext
· -- Porting note (#11041): broken ext
apply LinearMap.ext_ring
-- Porting note (#10959): simp used to be able to close this goal
dsimp
erw [ModuleCat.comp_def, LinearMap.comp_apply, ε_apply, Finsupp.lapply_apply,
Finsupp.single_eq_same, id_apply]
· -- Porting note: broken ext
· -- Porting note (#11041): broken ext
apply Finsupp.lhom_ext'
intro ⟨⟩
apply LinearMap.ext_ring
Expand Down
4 changes: 2 additions & 2 deletions Mathlib/Algebra/Category/ModuleCat/Monoidal/Basic.lean
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Expand Up @@ -164,7 +164,7 @@ theorem pentagon (W X Y Z : ModuleCat R) :

theorem leftUnitor_naturality {M N : ModuleCat R} (f : M ⟶ N) :
tensorHom (𝟙 (ModuleCat.of R R)) f ≫ (leftUnitor N).hom = (leftUnitor M).hom ≫ f := by
-- Porting note: broken ext
-- Porting note (#11041): broken ext
apply TensorProduct.ext
apply LinearMap.ext_ring
apply LinearMap.ext; intro x
Expand All @@ -178,7 +178,7 @@ theorem leftUnitor_naturality {M N : ModuleCat R} (f : M ⟶ N) :

theorem rightUnitor_naturality {M N : ModuleCat R} (f : M ⟶ N) :
tensorHom f (𝟙 (ModuleCat.of R R)) ≫ (rightUnitor N).hom = (rightUnitor M).hom ≫ f := by
-- Porting note: broken ext
-- Porting note (#11041): broken ext
apply TensorProduct.ext
apply LinearMap.ext; intro x
apply LinearMap.ext_ring
Expand Down