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fix: cslib +typeChanged on two instance-based deprecations #54

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Merged
Kha merged 1 commit into from
Sep 8, 2026
Merged

fix: cslib +typeChanged on two instance-based deprecations #54

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4 changes: 2 additions & 2 deletions cslib/Cslib/Foundations/Relation/Basic.lean
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Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,7 @@ theorem SymmGen.to_eqvGen (h : SymmGen r a b) : EqvGen r a b :=
attribute [scoped grind →] ReflGen.to_eqvGen TransGen.to_eqvGen ReflTransGen.to_eqvGen
SymmGen.to_eqvGen

@[deprecated _root_.refl (since := "2026-09-07")]
@[deprecated _root_.refl +typeChanged (since := "2026-09-07")]
theorem MJoin.refl (a : α) : MJoin r a a := _root_.refl a

theorem MJoin.single (h : ReflTransGen r a b) : MJoin r a b := by
Expand All @@ -69,7 +69,7 @@ theorem reflTransGen_mono_closed (h₁ : r₁ ≤ r₂) (h₂ : r₂ ≤ ReflTra
ext a b
exact ⟨ReflTransGen.mono h₁ a b, reflTransGen_closed h₂ a b⟩

@[deprecated Relation.ReflGen.stdSymm (since := "2026-09-03")]
@[deprecated Relation.ReflGen.stdSymm +typeChanged (since := "2026-09-03")]
lemma ReflGen.symmGen_symm : ReflGen (SymmGen r) a b → ReflGen (SymmGen r) b a :=
Std.Symm.symm a b

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