X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Flprs_ctc.ma;h=6406552e0b68b5d9cc73efb94836e45146502d6c;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hp=c3e72888bb0996373d49d7cbe6d50456adacd33c;hpb=c7b50fec51b9a25d5bc536f44e54179fd53efb44;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/lprs_ctc.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/lprs_ctc.ma
index c3e72888b..6406552e0 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/lprs_ctc.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/lprs_ctc.ma
@@ -20,11 +20,11 @@ include "basic_2/rt_computation/lprs.ma".
 (* Properties with contextual transitive closure ****************************)
 
 lemma lprs_CTC (h) (G):
-               ∀L1,L2. L1⪤[CTC … (λL. cpm h G L 0)] L2 → ⦃G,L1⦄⊢ ➡*[h] L2.
+               ∀L1,L2. L1⪤[CTC … (λL. cpm h G L 0)] L2 → ❪G,L1❫⊢ ➡*[h] L2.
 /3 width=3 by cprs_CTC, lex_co/ qed.
 
 (* Inversion lemmas with contextual transitive closure **********************)
 
 lemma lprs_inv_CTC (h) (G):
-                   ∀L1,L2. ⦃G,L1⦄⊢ ➡*[h] L2 → L1⪤[CTC … (λL. cpm h G L 0)] L2.
+                   ∀L1,L2. ❪G,L1❫⊢ ➡*[h] L2 → L1⪤[CTC … (λL. cpm h G L 0)] L2.
 /3 width=3 by cprs_inv_CTC, lex_co/ qed-.