X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcsx_gcr.ma;h=24ce3517d2c1162ee8ffbe03d2408298dd103e21;hb=57ae1762497a5f3ea75740e2908e04adb8642cc2;hp=03970d35b9b85bd3fe03c077015806f1de354605;hpb=ff612dc35167ec0c145864c9aa8ae5e1ebe20a48;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_gcr.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_gcr.ma
index 03970d35b..24ce3517d 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_gcr.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_gcr.ma
@@ -20,13 +20,15 @@ include "basic_2/rt_computation/csx_csx_vector.ma".
 
 (* Main properties with generic candidates of reducibility ******************)
 
-theorem csx_gcr: ∀h,o. gcr (cpx h) (tdeq h o) (csx h o) (csx h o).
-#h #o @mk_gcr //
-[ /3 width=1 by csx_applv_cnx/
-|2,3,6: /2 width=1 by csx_applv_beta, csx_applv_sort, csx_applv_cast/
-| /2 width=7 by csx_applv_delta/
-| #G #L #V1b #V2b #HV12b #a #V #T #H #HV
-  @(csx_applv_theta … HV12b) -HV12b
-  @csx_abbr //
+theorem csx_gcr (h):
+        gcr (cpx h) teqx (csx h) (csx h).
+#h @mk_gcr
+[ //
+| #G #L #Vs #Hvs #T #HT #H
+  @(csx_applv_cnx … H) -H // (**) (* auto fails *)
+| /2 width=1 by csx_applv_beta/
+| /2 width=7 by csx_applv_delta_drops/
+| /3 width=3 by csx_applv_theta, csx_abbr/
+| /2 width=1 by csx_applv_cast/
 ]
 qed.