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fix: remove simp from compare_self #7218

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fix: remove simp from compare_self #7218

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2a20656
fix: remove `simp` from `compare_self`
JovanGerb Feb 24, 2025
12327ac
fix
JovanGerb Feb 25, 2025
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6 changes: 2 additions & 4 deletions src/Std/Classes/Ord.lean
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Original file line number Diff line number Diff line change
Expand Up @@ -33,8 +33,6 @@ export ReflCmp (compare_self)
/-- A typeclasses for ordered types for which `compare a a = .eq` for all `a`. -/
abbrev ReflOrd (α : Type u) [Ord α] := ReflCmp (compare : α → α → Ordering)

attribute [simp] compare_self

end Refl

section Oriented
Expand Down Expand Up @@ -266,7 +264,7 @@ variable {α : Type u} {cmp : α → α → Ordering} [LawfulEqCmp cmp]

@[simp]
theorem compare_eq_iff_eq {a b : α} : cmp a b = .eq ↔ a = b :=
⟨LawfulEqCmp.eq_of_compare, by rintro rfl; simp⟩
⟨LawfulEqCmp.eq_of_compare, by rintro rfl; exact compare_self⟩

@[simp]
theorem compare_beq_iff_eq {a b : α} : cmp a b == .eq ↔ a = b :=
Expand All @@ -293,7 +291,7 @@ theorem beq_eq [Ord α] {a b : α} : (a == b) = (compare a b == .eq) :=
theorem equivBEq_of_transOrd [Ord α] [TransOrd α] : EquivBEq α where
symm {a b} h := by simp_all [OrientedCmp.eq_comm]
trans h₁ h₂ := by simp_all only [beq_eq, beq_iff_eq]; exact TransCmp.eq_trans h₁ h₂
refl := by simp
refl := by simp only [beq_eq, beq_iff_eq]; exact compare_self

theorem lawfulBEq_of_lawfulEqOrd [Ord α] [LawfulEqOrd α] : LawfulBEq α where
eq_of_beq hbeq := by simp_all
Expand Down
2 changes: 1 addition & 1 deletion src/Std/Data/DTreeMap/Internal/Cell.lean
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Expand Up @@ -43,7 +43,7 @@ def ofEq [Ord α] {k : α → Ordering} (k' : α) (v' : β k') (hcmp : ∀ [Orie

/-- Create a cell with a matching key. Internal implementation detail of the tree map -/
def of [Ord α] (k : α) (v : β k) : Cell α β (compare k) :=
.ofEq k v (by intro; simp)
.ofEq k v compare_self

@[simp]
theorem ofEq_inner [Ord α] {k : α → Ordering} {k' : α} {v' : β k'} {h} :
Expand Down
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