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-rw-r--r--test-suite/bugs/closed/bug_12676.v13
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+
+
+Definition nat_eq_dec(i j:nat) : {i=j}+{i<>j}.
+Proof.
+ pose (diseq := false).
+ decide equality.
+Defined.
+
+Set Mangle Names.
+Definition nat_eq_dec_mangle (i j:nat) : {i=j}+{i<>j}.
+Proof.
+ decide equality. (*Error: Anomaly "variable diseq unbound." ...*)
+Defined.