X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fcontribs%2FLOGIC%2FTrack%2Fpred.ma;h=d190f17fdd1661638514621af5a7fcd5594269dd;hb=f14e9248d0f76d1f366325b5ef74c1c03f485c2f;hp=c4e65c05d3c45c50dffbb7a0f56b4a92c144793e;hpb=cd85befa31c33698c57d5d5d0d7a2384bb2644f9;p=helm.git

diff --git a/matita/contribs/LOGIC/Track/pred.ma b/matita/contribs/LOGIC/Track/pred.ma
index c4e65c05d..d190f17fd 100644
--- a/matita/contribs/LOGIC/Track/pred.ma
+++ b/matita/contribs/LOGIC/Track/pred.ma
@@ -33,7 +33,10 @@ theorem track_pred: \forall Q1,Q2,p1,p2,S1,S2. [Q1, p1, S1] => [Q2, p2, S2] \to
  | lapply linear track_inv_scut to H4; decompose; destruct;
    lapply linear track_inv_lref to H5; decompose; autobatch
  | lapply linear track_inv_scut to H3; decompose; destruct;
-   lapply linear track_inv_prin to H5; destruct; autobatch
+   lapply linear track_inv_prin to H5; destruct;
+   lapply linear rinj_inj to Hcut1;
+   rewrite < Hcut1 in H4; clear Hcut1 a2;
+   autobatch
  | lapply linear track_inv_scut to H3; decompose; destruct;
    lapply linear track_inv_prin to H4; destruct; autobatch
  | lapply linear track_inv_scut to H3; decompose; destruct;