Porting note: change `rw` to `erw`

[Pietro Monticone]

Classifies porting notes claiming:

change rw to erw

Examples

mathlib4/Mathlib/AlgebraicGeometry/Pullbacks.lean

Lines 269 to 282 in ee3a8f2

 /-- The first projection from the glued scheme into `X`. -/ 
 def p1 : (gluing 𝒰 f g).glued ⟶ X := by 
   fapply Multicoequalizer.desc 
   exact fun i => pullback.fst ≫ 𝒰.map i 
   rintro ⟨i, j⟩ 
   change pullback.fst ≫ _ ≫ 𝒰.map i = (_ ≫ _) ≫ _ ≫ 𝒰.map j 
   -- Porting note: change `rw` to `erw` 
   erw [pullback.condition] 
   rw [← Category.assoc] 
   congr 1 
   rw [Category.assoc] 
   exact (t_fst_fst _ _ _ _ _).symm 
 #align algebraic_geometry.Scheme.pullback.p1 AlgebraicGeometry.Scheme.Pullback.p1 
  

mathlib4/Mathlib/Geometry/RingedSpace/LocallyRingedSpace/HasColimits.lean

Lines 216 to 227 in ee3a8f2

 theorem imageBasicOpen_image_open : 
     IsOpen ((coequalizer.π f.1 g.1).base '' (imageBasicOpen f g U s).1) := by 
   rw [← (TopCat.homeoOfIso (PreservesCoequalizer.iso (SheafedSpace.forget _) f.1 
     g.1)).isOpen_preimage, TopCat.coequalizer_isOpen_iff, ← Set.preimage_comp] 
   erw [← coe_comp] 
   rw [PreservesCoequalizer.iso_hom, ι_comp_coequalizerComparison] 
   dsimp only [SheafedSpace.forget] 
   -- Porting note: change `rw` to `erw` 
   erw [imageBasicOpen_image_preimage] 
   exact (imageBasicOpen f g U s).2 
 #align algebraic_geometry.LocallyRingedSpace.has_coequalizer.image_basic_open_image_open AlgebraicGeometry.LocallyRingedSpace.HasCoequalizer.imageBasicOpen_image_open