X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2FLOGIC%2FTrack%2Fpred.ma;h=f9c172813bc9466ac52941cece0881d3cc68c736;hb=09c8bb55c25143efdfbd34a20bb2fe6b681760b6;hp=c7f6198f95f01e9fedcefdce6c33504223a60892;hpb=72621f94886f59b8ff65f2bb7388f67308a2d959;p=helm.git

diff --git a/helm/software/matita/contribs/LOGIC/Track/pred.ma b/helm/software/matita/contribs/LOGIC/Track/pred.ma
index c7f6198f9..f9c172813 100644
--- a/helm/software/matita/contribs/LOGIC/Track/pred.ma
+++ b/helm/software/matita/contribs/LOGIC/Track/pred.ma
@@ -19,7 +19,7 @@ set "baseuri" "cic:/matita/LOGIC/Track/pred".
 include "Track/inv.ma".
 include "PRed/defs.ma".
 
-theorem track_pred: \forall Q1,Q2,p1,p2,S1,S2. PRed Q1 p1 S1 Q2 p2 S2 \to
+theorem track_pred: \forall Q1,Q2,p1,p2,S1,S2. [Q1, p1, S1] => [Q2, p2, S2] \to
                     Track Q1 p1 S1 \to Track Q2 p2 S2.
  intros 7; elim H; clear H Q1 Q2 p1 p2 S1 S2;
  [ autobatch