theorem
proved
term proof
comparativeEquiv_symm
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formal statement (Lean)
125theorem comparativeEquiv_symm (R : ComparativeRecognizer C E) (gt_events : Set E)
126 {c₁ c₂ : C} (h : comparativeEquiv R gt_events c₁ c₂) :
127 comparativeEquiv R gt_events c₂ c₁ :=
proof body
Term-mode proof.
128 ⟨h.2, h.1⟩
129