- bug fix in destruct

[helm.git] / matita / contribs / RELATIONAL / NLE / order.ma

diff --git a/matita/contribs/RELATIONAL/NLE/order.ma b/matita/contribs/RELATIONAL/NLE/order.ma
index c50e7befd15b761cb0ee55035fecb7f95a2daf38..cc3cc3030a44cdf3b4065ada67e42480791ce13f 100644 (file)
--- a/matita/contribs/RELATIONAL/NLE/order.ma
+++ b/matita/contribs/RELATIONAL/NLE/order.ma
@@ -24,7 +24,7 @@ theorem nle_trans: \forall x,y. x <= y \to
                    \forall z. y <= z \to x <= z.
  intros 3. elim H; clear H x y;
  [ autobatch
- | lapply linear nle_inv_succ_1 to H3. decompose. subst. 
+ | lapply linear nle_inv_succ_1 to H3. decompose. destruct. 
    autobatch
  ].
 qed.
@@ -38,7 +38,7 @@ theorem nle_irrefl: \forall x. x < x \to False.
 qed.
 
 theorem nle_irrefl_ei: \forall x, z. z <= x \to z = succ x \to False.
- intros 3. elim H; clear H x z; subst. autobatch.
+ intros 3. elim H; clear H x z; destruct. autobatch.
 qed.
 
 theorem nle_irrefl_smart: \forall x. x < x \to False.