X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Ffsb_feqx.ma;h=c7311efe73e72a7d860e40f5491f1ba9e32e9ad9;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hp=b55d1907377335457450606b473d0e945d783c2f;hpb=adb9ba187619cea977d1d22971eba27eb437cd6a;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fsb_feqx.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fsb_feqx.ma
index b55d19073..c7311efe7 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fsb_feqx.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fsb_feqx.ma
@@ -19,9 +19,9 @@ include "basic_2/rt_computation/fsb.ma".
 
 (* Properties with sort-irrelevant equivalence for closures *****************)
 
-lemma fsb_feqx_trans: ∀h,G1,L1,T1. ≥[h] 𝐒⦃G1,L1,T1⦄ →
-                      ∀G2,L2,T2. ⦃G1,L1,T1⦄ ≛ ⦃G2,L2,T2⦄ → ≥[h] 𝐒⦃G2,L2,T2⦄.
-#h #G1 #L1 #T1 #H @(fsb_ind_alt … H) -G1 -L1 -T1 
+lemma fsb_feqx_trans: ∀h,G1,L1,T1. ≥[h] 𝐒❪G1,L1,T1❫ →
+                      ∀G2,L2,T2. ❪G1,L1,T1❫ ≛ ❪G2,L2,T2❫ → ≥[h] 𝐒❪G2,L2,T2❫.
+#h #G1 #L1 #T1 #H @(fsb_ind_alt … H) -G1 -L1 -T1
 #G1 #L1 #T1 #_ #IH #G2 #L2 #T2 #H12
 @fsb_intro #G #L #T #H2
 elim (feqx_fpb_trans … H12 … H2) -G2 -L2 -T2