X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2Fng_TPTP%2FGRP001-4.ma;h=49cf50177ca3ffae382625d1ec4ae829b92a7752;hb=a88be1ca42c0969dbab9a5c76240f5931df876d9;hp=dcf656eba06f4fbbd8adc3667d1bb27aebbe8007;hpb=11e495dda047bcdfa4267c06cad2d074fcffe3e3;p=helm.git

diff --git a/helm/software/matita/contribs/ng_TPTP/GRP001-4.ma b/helm/software/matita/contribs/ng_TPTP/GRP001-4.ma
index dcf656eba..49cf50177 100644
--- a/helm/software/matita/contribs/ng_TPTP/GRP001-4.ma
+++ b/helm/software/matita/contribs/ng_TPTP/GRP001-4.ma
@@ -4,7 +4,7 @@ include "logic/equality.ma".
 
 (* -------------------------------------------------------------------------- *)
 
-(*  File     : GRP001-4 : TPTP v3.2.0. Released v1.0.0. *)
+(*  File     : GRP001-4 : TPTP v3.7.0. Released v1.0.0. *)
 
 (*  Domain   : Group Theory *)
 
@@ -54,7 +54,7 @@ include "logic/equality.ma".
 
 (* ----There exists an identity element 'e' defined below. *)
 ntheorem prove_b_times_a_is_c:
- ∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
+ (∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
 ∀a:Univ.
 ∀b:Univ.
 ∀c:Univ.
@@ -63,22 +63,23 @@ ntheorem prove_b_times_a_is_c:
 ∀H0:eq Univ (multiply a b) c.
 ∀H1:∀X:Univ.eq Univ (multiply X X) identity.
 ∀H2:∀X:Univ.eq Univ (multiply identity X) X.
-∀H3:∀X:Univ.∀Y:Univ.∀Z:Univ.eq Univ (multiply (multiply X Y) Z) (multiply X (multiply Y Z)).eq Univ (multiply b a) c
+∀H3:∀X:Univ.∀Y:Univ.∀Z:Univ.eq Univ (multiply (multiply X Y) Z) (multiply X (multiply Y Z)).eq Univ (multiply b a) c)
 .
-#Univ.
-#X.
-#Y.
-#Z.
-#a.
-#b.
-#c.
-#identity.
-#multiply.
-#H0.
-#H1.
-#H2.
-#H3.
-nauto by H0,H1,H2,H3;
+#Univ ##.
+#X ##.
+#Y ##.
+#Z ##.
+#a ##.
+#b ##.
+#c ##.
+#identity ##.
+#multiply ##.
+#H0 ##.
+#H1 ##.
+#H2 ##.
+#H3 ##.
+nauto by H0,H1,H2,H3 ##;
+ntry (nassumption) ##;
 nqed.
 
 (* -------------------------------------------------------------------------- *)