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fix(category_theory/eq_to_hom): remove bad simp lemmas (#1346)
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semorrison authored and mergify[bot] committed Aug 19, 2019
1 parent 9eefd40 commit 5a309a3
Showing 1 changed file with 3 additions and 3 deletions.
6 changes: 3 additions & 3 deletions src/category_theory/eq_to_hom.lean
Original file line number Diff line number Diff line change
Expand Up @@ -70,15 +70,15 @@ by subst h; simp

end functor

@[simp] lemma eq_to_hom_map (F : C ⥤ D) {X Y : C} (p : X = Y) :
lemma eq_to_hom_map (F : C ⥤ D) {X Y : C} (p : X = Y) :
F.map (eq_to_hom p) = eq_to_hom (congr_arg F.obj p) :=
by cases p; simp

@[simp] lemma eq_to_iso_map (F : C ⥤ D) {X Y : C} (p : X = Y) :
lemma eq_to_iso_map (F : C ⥤ D) {X Y : C} (p : X = Y) :
F.map_iso (eq_to_iso p) = eq_to_iso (congr_arg F.obj p) :=
by ext; cases p; simp

@[simp] lemma eq_to_hom_app {F G : C ⥤ D} (h : F = G) (X : C) :
lemma eq_to_hom_app {F G : C ⥤ D} (h : F = G) (X : C) :
(eq_to_hom h : F ⟶ G).app X = eq_to_hom (functor.congr_obj h X) :=
by subst h; refl

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