First draft implementation of rewriting in an hypothesis.

[helm.git] / helm / matita / tests / rewrite.ma

diff --git a/helm/matita/tests/rewrite.ma b/helm/matita/tests/rewrite.ma
index ebb54f126588f9dd5abb4895a40d6286a155ddc3..194dbd17ecedafbf35a4fbf83f973224a2d6a2e8 100644 (file)
--- a/helm/matita/tests/rewrite.ma
+++ b/helm/matita/tests/rewrite.ma
@@ -47,3 +47,10 @@ theorem foo: \forall n. n = n + 0.
  intros.
  rewrite < t; reflexivity.
 qed.
+
+theorem test_rewrite_in_hyp: \forall n,m. n + 0 = m \to m = n + 0 \to n=m \land m+0=n+0.
+ intros.
+ rewrite < plus_n_O in H.
+ rewrite > plus_n_O in H1.
+ split; [ exact H | exact H1].
+qed.