X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2Fng_TPTP%2FROB001-1.ma;h=5c5b99fd17d094dd56c067540830d2aade835413;hb=f6c887944d48d718f372a57f1609f3d059908aa8;hp=9c782b0e0d62680955290f87f67f40878c163ec5;hpb=11e495dda047bcdfa4267c06cad2d074fcffe3e3;p=helm.git

diff --git a/helm/software/matita/contribs/ng_TPTP/ROB001-1.ma b/helm/software/matita/contribs/ng_TPTP/ROB001-1.ma
index 9c782b0e0..5c5b99fd1 100644
--- a/helm/software/matita/contribs/ng_TPTP/ROB001-1.ma
+++ b/helm/software/matita/contribs/ng_TPTP/ROB001-1.ma
@@ -94,27 +94,27 @@ 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.
 ∀negate:∀_:Univ.Univ.
 ∀H0:∀X:Univ.∀Y:Univ.eq Univ (negate (add (negate (add X Y)) (negate (add X (negate Y))))) X.
 ∀H1:∀X:Univ.∀Y:Univ.∀Z:Univ.eq Univ (add (add X Y) Z) (add X (add Y Z)).
-∀H2:∀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
+∀H2:∀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.
-#negate.
-#H0.
-#H1.
-#H2.
-nauto by H0,H1,H2;
+#Univ ##.
+#X ##.
+#Y ##.
+#Z ##.
+#a ##.
+#add ##.
+#b ##.
+#negate ##.
+#H0 ##.
+#H1 ##.
+#H2 ##.
+nauto by H0,H1,H2 ##;
 nqed.
 
 (* -------------------------------------------------------------------------- *)