tacticals are really tactics now, they have an AST at the same level of

[helm.git] / helm / software / matita / contribs / ng_TPTP / ROB006-2.ma

diff --git a/helm/software/matita/contribs/ng_TPTP/ROB006-2.ma b/helm/software/matita/contribs/ng_TPTP/ROB006-2.ma
index 054ecfb45acc926ec36b7876db642c3988b98662..49f37838bb548e683b059231d1693a335d44cf76 100644 (file)
--- a/helm/software/matita/contribs/ng_TPTP/ROB006-2.ma
+++ b/helm/software/matita/contribs/ng_TPTP/ROB006-2.ma
@@ -100,7 +100,7 @@ include "logic/equality.ma".
 
 (* -------------------------------------------------------------------------- *)
 ntheorem prove_idempotence:
- ∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
+ (∀Univ:Type.∀X:Univ.∀Y:Univ.∀Z:Univ.
 ∀add:∀_:Univ.∀_:Univ.Univ.
 ∀c:Univ.
 ∀d:Univ.
@@ -108,25 +108,24 @@ ntheorem prove_idempotence:
 ∀H0:eq Univ (add c d) d.
 ∀H1:∀X:Univ.∀Y:Univ.eq Univ (negate (add (negate (add X Y)) (negate (add X (negate Y))))) X.
 ∀H2:∀X:Univ.∀Y:Univ.∀Z:Univ.eq Univ (add (add X Y) Z) (add X (add Y Z)).
-∀H3:∀X:Univ.∀Y:Univ.eq Univ (add X Y) (add Y X).∃X:Univ.eq Univ (add X X) X
+∀H3:∀X:Univ.∀Y:Univ.eq Univ (add X Y) (add Y X).∃X:Univ.eq Univ (add X X) X)
 .
-#Univ.
-#X.
-#Y.
-#Z.
-#add.
-#c.
-#d.
-#negate.
-#H0.
-#H1.
-#H2.
-#H3.
-napply ex_intro[
-nid2:
-nauto by H0,H1,H2,H3;
-nid|
-skip]
+#Univ ##.
+#X ##.
+#Y ##.
+#Z ##.
+#add ##.
+#c ##.
+#d ##.
+#negate ##.
+#H0 ##.
+#H1 ##.
+#H2 ##.
+#H3 ##.
+napply (ex_intro ? ? ? ?) ##[
+##2:
+nauto by H0,H1,H2,H3 ##;
+##| ##skip ##]
 nqed.
 
 (* -------------------------------------------------------------------------- *)