X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_equivalence%2Fcpes_cpms.ma;h=845deae5e461500361533ca3673ea46278c82dd4;hp=48b0ceb1cf5774079e792e1c8033e9eab3b4768c;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_equivalence/cpes_cpms.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_equivalence/cpes_cpms.ma
index 48b0ceb1c..845deae5e 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_equivalence/cpes_cpms.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_equivalence/cpes_cpms.ma
@@ -20,16 +20,16 @@ include "basic_2/rt_equivalence/cpes.ma".
 (* Properties with t-bound rt-computation on terms **************************)
 
 lemma cpes_cprs_trans (h) (n) (G) (L) (T0):
-      ∀T1.  ⦃G,L⦄ ⊢ T1 ⬌*[h,n,0] T0 →
-      ∀T2.  ⦃G,L⦄ ⊢ T0 ➡*[h] T2 → ⦃G,L⦄ ⊢ T1 ⬌*[h,n,0] T2.
+      ∀T1.  ❪G,L❫ ⊢ T1 ⬌*[h,n,0] T0 →
+      ∀T2.  ❪G,L❫ ⊢ T0 ➡*[h] T2 → ❪G,L❫ ⊢ T1 ⬌*[h,n,0] T2.
 #h #n #G #L #T0 #T1 * #T #HT1 #HT0 #T2 #HT02
 elim (cprs_conf … HT0 … HT02) -T0 #T0 #HT0 #HT20
 /3 width=3 by cpms_div, cpms_cprs_trans/
 qed-.
 
 lemma cpes_cpms_div (h) (n) (n1) (n2) (G) (L) (T0):
-      ∀T1.  ⦃G,L⦄ ⊢ T1 ⬌*[h,n,n1] T0 →
-      ∀T2.  ⦃G,L⦄ ⊢ T2 ➡*[n2,h] T0 → ⦃G,L⦄ ⊢ T1 ⬌*[h,n,n2+n1] T2.
+      ∀T1.  ❪G,L❫ ⊢ T1 ⬌*[h,n,n1] T0 →
+      ∀T2.  ❪G,L❫ ⊢ T2 ➡*[n2,h] T0 → ❪G,L❫ ⊢ T1 ⬌*[h,n,n2+n1] T2.
 #h #n #n1 #n2 #G #L #T0 #T1 * #T #HT1 #HT0 #T2 #HT20
 lapply (cpms_trans … HT20 … HT0) -T0 #HT2
 /2 width=3 by cpms_div/