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-rw-r--r--plugins/rtauto/Bintree.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/plugins/rtauto/Bintree.v b/plugins/rtauto/Bintree.v
index 7394cebd..36460187 100644
--- a/plugins/rtauto/Bintree.v
+++ b/plugins/rtauto/Bintree.v
@@ -266,7 +266,7 @@ Qed.
Lemma push_not_empty: forall a S, (push a S) <> empty.
intros a [ind cont];unfold push,empty.
-simpl;intro H;injection H; intros _ ; apply Pos.succ_not_1.
+intros [= H%Pos.succ_not_1]. assumption.
Qed.
Fixpoint In (x:A) (S:Store) (F:Full S) {struct F}: Prop :=