- bug fix in destruct

[helm.git] / matita / contribs / RELATIONAL / NPlusList / props.ma

diff --git a/matita/contribs/RELATIONAL/NPlusList/props.ma b/matita/contribs/RELATIONAL/NPlusList/props.ma
index 3f53d92cf6bfb348b2c27fe29a6ed2875b31d338..f7fc4305e4a8ce2457230bcb96d56e21669e4e5f 100644 (file)
--- a/matita/contribs/RELATIONAL/NPlusList/props.ma
+++ b/matita/contribs/RELATIONAL/NPlusList/props.ma
@@ -22,7 +22,7 @@ axiom npluslist_gen_cons: \forall l,q,r.
 (* 
  intros. inversion H; clear H; intros;
  [ id
- | subst.
+ | destruct.
 *)
 
 theorem npluslist_inj_2: \forall ns1,ns2,n.