X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fcontribs%2FLOGIC%2FInsert%2Ffun.ma;h=7c7aba28a8eaa4e0ca9c44ae1becf26b7343e662;hb=cf5540f056d6d4fa1612e08d41253d1d009f5d44;hp=f0cc5e514e7951e1d9f0e1af4f17e2ed69511672;hpb=72a05c70f5ab9dabb704f1dc334920b10a8f4bb9;p=helm.git

diff --git a/matita/contribs/LOGIC/Insert/fun.ma b/matita/contribs/LOGIC/Insert/fun.ma
index f0cc5e514..7c7aba28a 100644
--- a/matita/contribs/LOGIC/Insert/fun.ma
+++ b/matita/contribs/LOGIC/Insert/fun.ma
@@ -27,8 +27,8 @@ qed.
 theorem insert_inj: \forall S1,i,P, Q. Insert S1 i P Q \to 
                     \forall S2. Insert S2 i P Q \to S1 = S2.
  intros 5; elim H; clear H i P Q;
- [ lapply linear insert_inv_zero to H1; subst; autobatch
- | lapply linear insert_inv_succ to H3; decompose; subst; autobatch
+ [ lapply linear insert_inv_zero to H1; destruct; autobatch
+ | lapply linear insert_inv_succ to H3; decompose; destruct; autobatch
  ].
 qed.
 *)