X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=inline;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2Fng_TPTP%2FALG007-1.ma;h=4fd49f617a40c2f3c000d586ca19ca6238c22969;hb=0639dda9142d1cf047b07e61fb557e8877aba4d8;hp=23b7a85d95d23918a5862382e560ee5f4970961d;hpb=c40f28fe5bfa74fc1fcef986c03fc960793902a5;p=helm.git

diff --git a/helm/software/matita/contribs/ng_TPTP/ALG007-1.ma b/helm/software/matita/contribs/ng_TPTP/ALG007-1.ma
index 23b7a85d9..4fd49f617 100644
--- a/helm/software/matita/contribs/ng_TPTP/ALG007-1.ma
+++ b/helm/software/matita/contribs/ng_TPTP/ALG007-1.ma
@@ -52,27 +52,27 @@ include "logic/equality.ma".
 
 (* ----Denial of original third axiom: *)
 ntheorem prove_set_difference_3:
- ∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
+ (∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
 ∀a:Univ.
 ∀b:Univ.
 ∀c:Univ.
 ∀difference:∀_:Univ.∀_:Univ.Univ.
 ∀H0:∀X:Univ.∀Y:Univ.∀Z:Univ.eq Univ (difference (difference X Y) Z) (difference (difference X Z) Y).
 ∀H1:∀X:Univ.∀Y:Univ.eq Univ (difference X (difference X Y)) (difference Y (difference Y X)).
-∀H2:∀X:Univ.∀Y:Univ.eq Univ (difference X (difference Y X)) X.eq Univ (difference (difference a b) c) (difference (difference a c) (difference b c))
+∀H2:∀X:Univ.∀Y:Univ.eq Univ (difference X (difference Y X)) X.eq Univ (difference (difference a b) c) (difference (difference a c) (difference b c)))
 .
-#Univ.
-#X.
-#Y.
-#Z.
-#a.
-#b.
-#c.
-#difference.
-#H0.
-#H1.
-#H2.
-nauto by H0,H1,H2;
+#Univ ##.
+#X ##.
+#Y ##.
+#Z ##.
+#a ##.
+#b ##.
+#c ##.
+#difference ##.
+#H0 ##.
+#H1 ##.
+#H2 ##.
+nauto by H0,H1,H2 ##;
 nqed.
 
 (* -------------------------------------------------------------------------- *)