X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2Fng_TPTP%2FGRP023-2.ma;h=13bfa941defdebca4dfb8ad10c934f1e1b348abd;hb=0639dda9142d1cf047b07e61fb557e8877aba4d8;hp=b5e55b39ae150a8d9b136baf032545c4500e416f;hpb=11e495dda047bcdfa4267c06cad2d074fcffe3e3;p=helm.git

diff --git a/helm/software/matita/contribs/ng_TPTP/GRP023-2.ma b/helm/software/matita/contribs/ng_TPTP/GRP023-2.ma
index b5e55b39a..13bfa941d 100644
--- a/helm/software/matita/contribs/ng_TPTP/GRP023-2.ma
+++ b/helm/software/matita/contribs/ng_TPTP/GRP023-2.ma
@@ -112,7 +112,7 @@ include "logic/equality.ma".
 
 (* ----Redundant two axioms *)
 ntheorem prove_inverse_of_id_is_id:
- ∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
+ (∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
 ∀identity:Univ.
 ∀inverse:∀_:Univ.Univ.
 ∀multiply:∀_:Univ.∀_:Univ.Univ.
@@ -120,21 +120,21 @@ ntheorem prove_inverse_of_id_is_id:
 ∀H1:∀X:Univ.eq Univ (multiply X identity) X.
 ∀H2:∀X:Univ.∀Y:Univ.∀Z:Univ.eq Univ (multiply (multiply X Y) Z) (multiply X (multiply Y Z)).
 ∀H3:∀X:Univ.eq Univ (multiply (inverse X) X) identity.
-∀H4:∀X:Univ.eq Univ (multiply identity X) X.eq Univ (inverse identity) identity
+∀H4:∀X:Univ.eq Univ (multiply identity X) X.eq Univ (inverse identity) identity)
 .
-#Univ.
-#X.
-#Y.
-#Z.
-#identity.
-#inverse.
-#multiply.
-#H0.
-#H1.
-#H2.
-#H3.
-#H4.
-nauto by H0,H1,H2,H3,H4;
+#Univ ##.
+#X ##.
+#Y ##.
+#Z ##.
+#identity ##.
+#inverse ##.
+#multiply ##.
+#H0 ##.
+#H1 ##.
+#H2 ##.
+#H3 ##.
+#H4 ##.
+nauto by H0,H1,H2,H3,H4 ##;
 nqed.
 
 (* -------------------------------------------------------------------------- *)