X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2Fng_TPTP%2FROB004-1.ma;fp=helm%2Fsoftware%2Fmatita%2Fcontribs%2Fng_TPTP%2FROB004-1.ma;h=4b2757f558fffc958f1a2dc08b2aa3dd94b0e47d;hb=0639dda9142d1cf047b07e61fb557e8877aba4d8;hp=981a05054078ae13dacf8730f48f703dd0b2656e;hpb=c40f28fe5bfa74fc1fcef986c03fc960793902a5;p=helm.git

diff --git a/helm/software/matita/contribs/ng_TPTP/ROB004-1.ma b/helm/software/matita/contribs/ng_TPTP/ROB004-1.ma
index 981a05054..4b2757f55 100644
--- a/helm/software/matita/contribs/ng_TPTP/ROB004-1.ma
+++ b/helm/software/matita/contribs/ng_TPTP/ROB004-1.ma
@@ -96,7 +96,7 @@ include "logic/equality.ma".
 
 (* -------------------------------------------------------------------------- *)
 ntheorem prove_huntingtons_axiom:
- ∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
+ (∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
 ∀a:Univ.
 ∀add:∀_:Univ.∀_:Univ.Univ.
 ∀b:Univ.
@@ -108,25 +108,25 @@ ntheorem prove_huntingtons_axiom:
 ∀H2:eq Univ (negate d) c.
 ∀H3:∀X:Univ.∀Y:Univ.eq Univ (negate (add (negate (add X Y)) (negate (add X (negate Y))))) X.
 ∀H4:∀X:Univ.∀Y:Univ.∀Z:Univ.eq Univ (add (add X Y) Z) (add X (add Y Z)).
-∀H5:∀X:Univ.∀Y:Univ.eq Univ (add X Y) (add Y X).eq Univ (add (negate (add a (negate b))) (negate (add (negate a) (negate b)))) b
+∀H5:∀X:Univ.∀Y:Univ.eq Univ (add X Y) (add Y X).eq Univ (add (negate (add a (negate b))) (negate (add (negate a) (negate b)))) b)
 .
-#Univ.
-#X.
-#Y.
-#Z.
-#a.
-#add.
-#b.
-#c.
-#d.
-#negate.
-#H0.
-#H1.
-#H2.
-#H3.
-#H4.
-#H5.
-nauto by H0,H1,H2,H3,H4,H5;
+#Univ ##.
+#X ##.
+#Y ##.
+#Z ##.
+#a ##.
+#add ##.
+#b ##.
+#c ##.
+#d ##.
+#negate ##.
+#H0 ##.
+#H1 ##.
+#H2 ##.
+#H3 ##.
+#H4 ##.
+#H5 ##.
+nauto by H0,H1,H2,H3,H4,H5 ##;
 nqed.
 
 (* -------------------------------------------------------------------------- *)