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diff --git a/test-suite/bugs/closed/shouldsucceed/2375.v b/test-suite/bugs/closed/shouldsucceed/2375.v
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+(* In the following code, the (superfluous) lemma [lem] is responsible 
+for the failure of congruence. *)
+
+Definition  f : nat -> Prop := fun x => True.
+
+Lemma lem : forall x,  (True -> True)   = ( True ->  f x).
+Proof.
+  intros. reflexivity.
+Qed.
+
+Goal forall  (x:nat), x = x.
+Proof.
+  intros.
+  assert (lem := lem).
+  (*clear ax.*)
+  congruence.
+Qed.
+