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_lpx.ma;h=7c8a4ae996807a73fbd171cce8ac2e8c347d5f58;hp=ba4a29ec5d513a0b33dda2d4549e882750ea25c2;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/rpx_lpx.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/rpx_lpx.ma
index ba4a29ec5..7c8a4ae99 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/rpx_lpx.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/rpx_lpx.ma
@@ -20,16 +20,16 @@ include "basic_2/rt_transition/lpx.ma".
 
 (* Properties with syntactic equivalence for referred local environments ****)
 
-lemma fleq_rpx (h) (G): ∀L1,L2,T. L1 ≡[T] L2 → ⦃G,L1⦄ ⊢ ⬈[h,T] L2.
+lemma fleq_rpx (h) (G): ∀L1,L2,T. L1 ≡[T] L2 → ❪G,L1❫ ⊢ ⬈[h,T] L2.
 /2 width=1 by req_fwd_rex/ qed.
 
 (* Properties with unbound parallel rt-transition for full local envs *******)
 
-lemma lpx_rpx: ∀h,G,L1,L2,T. ⦃G,L1⦄ ⊢ ⬈[h] L2 → ⦃G,L1⦄ ⊢ ⬈[h,T] L2.
+lemma lpx_rpx: ∀h,G,L1,L2,T. ❪G,L1❫ ⊢ ⬈[h] L2 → ❪G,L1❫ ⊢ ⬈[h,T] L2.
 /2 width=1 by rex_lex/ qed.
 
 (* Inversion lemmas with unbound parallel rt-transition for full local envs *)
 
-lemma rpx_inv_lpx_req: ∀h,G,L1,L2,T. ⦃G,L1⦄ ⊢ ⬈[h,T] L2 →
-                       ∃∃L. ⦃G,L1⦄ ⊢ ⬈[h] L & L ≡[T] L2.
+lemma rpx_inv_lpx_req: ∀h,G,L1,L2,T. ❪G,L1❫ ⊢ ⬈[h,T] L2 →
+                       ∃∃L. ❪G,L1❫ ⊢ ⬈[h] L & L ≡[T] L2.
 /3 width=3 by rpx_fsge_comp, rex_inv_lex_req/ qed-.