X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcpmre.ma;h=229477f8285014d5dccfb94f7f085e3d44902b4f;hp=112f0aa345d53e62a1c343e6c8f6f60c204140bd;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpmre.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpmre.ma
index 112f0aa34..229477f82 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpmre.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpmre.ma
@@ -20,7 +20,7 @@ include "basic_2/rt_computation/cpms.ma".
 
 (* Basic_2A1: uses: cprre *)
 definition cpmre (h) (n) (G) (L): relation2 term term ≝
-           λT1,T2. ∧∧ ⦃G,L⦄ ⊢ T1 ➡*[n,h] T2 & ⦃G,L⦄ ⊢ ➡[h] 𝐍⦃T2⦄.
+           λT1,T2. ∧∧ ❪G,L❫ ⊢ T1 ➡*[n,h] T2 & ❪G,L❫ ⊢ ➡[h] 𝐍❪T2❫.
 
 interpretation "evaluation for t-bound context-sensitive parallel rt-transition (term)"
    'PRedEval h n G L T1 T2 = (cpmre h n G L T1 T2).
@@ -28,12 +28,12 @@ interpretation "evaluation for t-bound context-sensitive parallel rt-transition
 (* Basic properties *********************************************************)
 
 lemma cpmre_intro (h) (n) (G) (L):
-      ∀T1,T2. ⦃G,L⦄ ⊢ T1 ➡*[n,h] T2 → ⦃G,L⦄ ⊢ ➡[h] 𝐍⦃T2⦄ → ⦃G,L⦄⊢T1➡*[h,n]𝐍⦃T2⦄.
+      ∀T1,T2. ❪G,L❫ ⊢ T1 ➡*[n,h] T2 → ❪G,L❫ ⊢ ➡[h] 𝐍❪T2❫ → ❪G,L❫⊢T1➡*[h,n]𝐍❪T2❫.
 /2 width=1 by conj/ qed.
 
 (* Basic forward lemmas *****************************************************)
 
 lemma cpmre_fwd_cpms (h) (n) (G) (L):
-      ∀T1,T2. ⦃G,L⦄⊢T1➡*[h,n]𝐍⦃T2⦄ → ⦃G,L⦄ ⊢ T1 ➡*[n,h] T2.
+      ∀T1,T2. ❪G,L❫⊢T1➡*[h,n]𝐍❪T2❫ → ❪G,L❫ ⊢ T1 ➡*[n,h] T2.
 #h #n #G #L #T1 #T2 * //
 qed-.