X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_transition%2Ffpbc.ma;h=4245b58111194aefb965c471543feecf4ffde027;hb=d7ff8dcf71f18a17fbf66696f0293cd411c1dbca;hp=1944ee29bd7fef6ac49effb3536b076b1ea25c9e;hpb=e23331eef5817eaa6c5e1c442d1d6bbb18650573;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/fpbc.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/fpbc.ma
index 1944ee29b..4245b5811 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/fpbc.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/fpbc.ma
@@ -20,8 +20,8 @@ include "basic_2/rt_transition/fpb.ma".
 
 (* Basic_2A1: uses: fpb *)
 definition fpbc (G1) (L1) (T1) (G2) (L2) (T2): Prop ≝
-           ∧∧ ❪G1,L1,T1❫ ≽ ❪G2,L2,T2❫
-            & (❪G1,L1,T1❫ ≅ ❪G2,L2,T2❫ → ⊥).
+           ∧∧ ❨G1,L1,T1❩ ≽ ❨G2,L2,T2❩
+            & (❨G1,L1,T1❩ ≅ ❨G2,L2,T2❩ → ⊥).
 
 interpretation
   "proper parallel rst-transition (closure)"
@@ -31,20 +31,20 @@ interpretation
 
 (* Basic_2A1: fpbq_inv_fpb_alt *)
 lemma fpbc_intro (G1) (L1) (T1) (G2) (L2) (T2):
-      ❪G1,L1,T1❫ ≽ ❪G2,L2,T2❫ → (❪G1,L1,T1❫ ≅ ❪G2,L2,T2❫ → ⊥) →
-      ❪G1,L1,T1❫ ≻ ❪G2,L2,T2❫.
+      ❨G1,L1,T1❩ ≽ ❨G2,L2,T2❩ → (❨G1,L1,T1❩ ≅ ❨G2,L2,T2❩ → ⊥) →
+      ❨G1,L1,T1❩ ≻ ❨G2,L2,T2❩.
 /3 width=1 by conj/ qed.
 
 lemma rpx_fpbc (G) (T):
-      ∀L1,L2. ❪G,L1❫ ⊢ ⬈[T] L2 → (L1 ≅[T] L2 → ⊥) → ❪G,L1,T❫ ≻ ❪G,L2,T❫.
+      ∀L1,L2. ❨G,L1❩ ⊢ ⬈[T] L2 → (L1 ≅[T] L2 → ⊥) → ❨G,L1,T❩ ≻ ❨G,L2,T❩.
 /4 width=4 by fpbc_intro, rpx_fpb, feqg_fwd_reqg_sn/ qed.  
 
 (* Basic inversion lemmas ***************************************************)
 
 (* Basic_2A1: uses: fpb_fpbq_alt *)
 lemma fpbc_inv_gen (S):
-      ∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ≻ ❪G2,L2,T2❫ →
-      ∧∧ ❪G1,L1,T1❫ ≽ ❪G2,L2,T2❫ & (❪G1,L1,T1❫ ≛[S] ❪G2,L2,T2❫ → ⊥).
+      ∀G1,G2,L1,L2,T1,T2. ❨G1,L1,T1❩ ≻ ❨G2,L2,T2❩ →
+      ∧∧ ❨G1,L1,T1❩ ≽ ❨G2,L2,T2❩ & (❨G1,L1,T1❩ ≛[S] ❨G2,L2,T2❩ → ⊥).
 #S #G1 #G2 #L1 #L2 #T1 #T2 *
 /4 width=2 by feqg_feqx, conj/
 qed-.
@@ -53,7 +53,7 @@ qed-.
 
 (* Basic_2A1: uses: fpb_fpbq *)
 lemma fpbc_fwd_fpb:
-      ∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ≻ ❪G2,L2,T2❫ →
-      ❪G1,L1,T1❫ ≽ ❪G2,L2,T2❫.
+      ∀G1,G2,L1,L2,T1,T2. ❨G1,L1,T1❩ ≻ ❨G2,L2,T2❩ →
+      ❨G1,L1,T1❩ ≽ ❨G2,L2,T2❩.
 #G1 #G2 #L1 #L2 #T1 #T2 * //
 qed-.