X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcpxs_cnx.ma;h=98e81b543b48b7808e4f2dfcea55ff601069f0c9;hp=d10463afe8c0f7bee3f626427bb8b513afbe73b5;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_cnx.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_cnx.ma
index d10463afe..98e81b543 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_cnx.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_cnx.ma
@@ -20,13 +20,13 @@ include "basic_2/rt_computation/cpxs.ma".
 (* Properties with normal forms *********************************************)
 
 lemma cpxs_cnx (h) (G) (L) (T1):
-      (∀T2. ⦃G,L⦄ ⊢ T1 ⬈*[h] T2 → T1 ≛ T2) → ⦃G,L⦄ ⊢ ⬈[h] 𝐍⦃T1⦄.
+      (∀T2. ❪G,L❫ ⊢ T1 ⬈*[h] T2 → T1 ≛ T2) → ❪G,L❫ ⊢ ⬈[h] 𝐍❪T1❫.
 /3 width=1 by cpx_cpxs/ qed.
 
 (* Inversion lemmas with normal terms ***************************************)
 
 lemma cpxs_inv_cnx1 (h) (G) (L):
-      ∀T1,T2. ⦃G,L⦄ ⊢ T1 ⬈*[h] T2 → ⦃G,L⦄ ⊢ ⬈[h] 𝐍⦃T1⦄ → T1 ≛ T2.
+      ∀T1,T2. ❪G,L❫ ⊢ T1 ⬈*[h] T2 → ❪G,L❫ ⊢ ⬈[h] 𝐍❪T1❫ → T1 ≛ T2.
 #h #G #L #T1 #T2 #H @(cpxs_ind_dx … H) -T1
 /5 width=9 by cnx_teqx_trans, teqx_trans/
 qed-.