X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fdynamic%2Fcnv_cpcs.ma;h=2f1a776eb2fe15fe6436906aa6d81aa37f0dea57;hb=7c9d99dfb049d726491b71f07ba6a9b088b30166;hp=5ed59b73998fdea2032d31ac4a3995b80d6938a9;hpb=5b5dca0c118dfbe3ba8f0514ef07549544eb7810;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpcs.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpcs.ma
index 5ed59b739..2f1a776eb 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpcs.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_cpcs.ma
@@ -21,8 +21,8 @@ include "basic_2/dynamic/cnv_aaa.ma".
 (* Properties with r-equivalence ********************************************)
 
 lemma cnv_cpcs_dec (h) (a) (G) (L):
-      ∀T1. ⦃G,L⦄ ⊢ T1 ![h,a] → ∀T2. ⦃G,L⦄ ⊢ T2 ![h,a] →
-      Decidable … (⦃G,L⦄ ⊢ T1 ⬌*[h] T2).
+      ∀T1. ❨G,L❩ ⊢ T1 ![h,a] → ∀T2. ❨G,L❩ ⊢ T2 ![h,a] →
+      Decidable … (❨G,L❩ ⊢ T1 ⬌*[h] T2).
 #h #a #G #L #T1 #HT1 #T2 #HT2
 elim (cnv_fwd_aaa … HT1) -HT1 #A1 #HA1
 elim (cnv_fwd_aaa … HT2) -HT2 #A2 #HA2