X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_transition%2Frpx_fqup.ma;h=29e81b1dd2c3c3c1c3acd9ccd90c11524b418501;hp=43f6f81b296e9fc4b965fd88c5ae447b29492cd1;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/rpx_fqup.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/rpx_fqup.ma
index 43f6f81b2..29e81b1dd 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/rpx_fqup.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/rpx_fqup.ma
@@ -22,18 +22,18 @@ include "basic_2/rt_transition/rpx.ma".
 lemma rpx_refl: ∀h,G,T. reflexive … (rpx h G T).
 /2 width=1 by rex_refl/ qed.
 
-lemma rpx_pair_refl: ∀h,G,L,V1,V2. ⦃G,L⦄ ⊢ V1 ⬈[h] V2 →
-                     ∀I,T. ⦃G,L.ⓑ{I}V1⦄ ⊢ ⬈[h,T] L.ⓑ{I}V2.
+lemma rpx_pair_refl: ∀h,G,L,V1,V2. ❪G,L❫ ⊢ V1 ⬈[h] V2 →
+                     ∀I,T. ❪G,L.ⓑ[I]V1❫ ⊢ ⬈[h,T] L.ⓑ[I]V2.
 /2 width=1 by rex_pair_refl/ qed.
 
 (* Advanced inversion lemmas ************************************************)
 
-lemma rpx_inv_bind_void: ∀h,p,I,G,L1,L2,V,T. ⦃G,L1⦄ ⊢ ⬈[h,ⓑ{p,I}V.T] L2 →
-                         ∧∧ ⦃G,L1⦄ ⊢ ⬈[h,V] L2 & ⦃G,L1.ⓧ⦄ ⊢ ⬈[h,T] L2.ⓧ.
+lemma rpx_inv_bind_void: ∀h,p,I,G,L1,L2,V,T. ❪G,L1❫ ⊢ ⬈[h,ⓑ[p,I]V.T] L2 →
+                         ∧∧ ❪G,L1❫ ⊢ ⬈[h,V] L2 & ❪G,L1.ⓧ❫ ⊢ ⬈[h,T] L2.ⓧ.
 /2 width=3 by rex_inv_bind_void/ qed-.
 
 (* Advanced forward lemmas **************************************************)
 
 lemma rpx_fwd_bind_dx_void: ∀h,p,I,G,L1,L2,V,T.
-                            ⦃G,L1⦄ ⊢ ⬈[h,ⓑ{p,I}V.T] L2 → ⦃G,L1.ⓧ⦄ ⊢ ⬈[h,T] L2.ⓧ.
+                            ❪G,L1❫ ⊢ ⬈[h,ⓑ[p,I]V.T] L2 → ❪G,L1.ⓧ❫ ⊢ ⬈[h,T] L2.ⓧ.
 /2 width=4 by rex_fwd_bind_dx_void/ qed-.