X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fapps_2%2Fmodels%2Fdeq_cpr.ma;h=7d648b07543e03d5d9af14c2c6b63a0dbc85cdad;hp=3e085aeeaf7a51ba5b95b628452ee22e32c1a9de;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/apps_2/models/deq_cpr.ma b/matita/matita/contribs/lambdadelta/apps_2/models/deq_cpr.ma
index 3e085aeea..7d648b075 100644
--- a/matita/matita/contribs/lambdadelta/apps_2/models/deq_cpr.ma
+++ b/matita/matita/contribs/lambdadelta/apps_2/models/deq_cpr.ma
@@ -21,7 +21,7 @@ include "apps_2/models/deq.ma".
 (* Forward lemmas with context-sensitive parallel reduction for terms *******)
 
 lemma cpr_fwd_deq (h) (M): is_model M → is_extensional M →
-                           ∀G,L,T1,T2. ⦃G,L⦄ ⊢ T1 ➡[h] T2 → ⦃G,L⦄ ⊢ T1 ≗{M} T2.
+                           ∀G,L,T1,T2. ❪G,L❫ ⊢ T1 ➡[h] T2 → ❪G,L❫ ⊢ T1 ≗{M} T2.
 #h #M #H1M #H2M #G #L #T1 #T2 #H @(cpr_ind … H) -G -L -T1 -T2
 [ /2 width=2 by deq_refl/
 | #G #K #V1 #V2 #W2 #_ #IH #HVW2 #gv #v #H