X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fdynamic%2Fnta_fsb.ma;h=14a4336e9ce32ca57da66475fc61a5f611c83d49;hb=9605ffc88831066a901ea4eb8e419f277662f372;hp=7e94833d3fdb5652ce656cf70e151a5f4520e8ec;hpb=57ae1762497a5f3ea75740e2908e04adb8642cc2;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/nta_fsb.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/nta_fsb.ma
index 7e94833d3..14a4336e9 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/nta_fsb.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/nta_fsb.ma
@@ -24,9 +24,9 @@ include "basic_2/dynamic/nta.ma".
 (* Basic_1: uses: ty3_sn3 *)
 (* Basic_2A1: uses: nta_fwd_csn *)
 theorem nta_fwd_fsb (h) (a) (G) (L):
-        ∀T,U. ❪G,L❫ ⊢ T :[h,a] U →
-        ∧∧ ≥𝐒[h] ❪G,L,T❫ & ≥𝐒[h] ❪G,L,U❫.
+        ∀T,U. ❨G,L❩ ⊢ T :[h,a] U →
+        ∧∧ ≥𝐒 ❨G,L,T❩ & ≥𝐒 ❨G,L,U❩.
 #h #a #G #L #T #U #H
 elim (cnv_inv_cast … H) #X #HU #HT #_ #_ -X
-/3 width=2 by cnv_fwd_fsb, conj/
+/3 width=3 by cnv_fwd_fsb, conj/
 qed-.