X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fdynamic%2Fcnv_eval.ma;h=44bd544d711728108309b5eee903ad2b6b94d2ce;hp=f0557da9286d4530639fbe73f91c1d07c74dc6a6;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_eval.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_eval.ma
index f0557da92..44bd544d7 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_eval.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/cnv_eval.ma
@@ -24,7 +24,7 @@ include "basic_2/dynamic/cnv_preserve_cpes.ma".
 (* main properties with evaluations for rt-transition on terms **************)
 
 theorem cnv_dec (h) (a) (G) (L) (T): ac_props a →
-        Decidable (⦃G,L⦄ ⊢ T ![h,a]).
+        Decidable (❪G,L❫ ⊢ T ![h,a]).
 #h #a #G #L #T #Ha
 @(fqup_wf_ind_eq (Ⓣ) … G L T) -G -L -T #G0 #L0 #T0 #IH #G #L * * [|||| * ]
 [ #s #HG #HL #HT destruct -Ha -IH
@@ -43,7 +43,7 @@ theorem cnv_dec (h) (a) (G) (L) (T): ac_props a →
   /3 width=6 by cnv_inv_gref, or_intror/
 | #p #I #V #T #HG #HL #HT destruct -Ha
   elim (IH G L V) [| -IH | // ] #HV
-  [ elim (IH G (L.ⓑ{I}V) T) -IH [3: // ] #HT
+  [ elim (IH G (L.ⓑ[I]V) T) -IH [3: // ] #HT
     [ /3 width=1 by cnv_bind, or_introl/ ]
   ]
   @or_intror #H