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=159663b11ca223d17900155cca8997737ea06695;hb=3c7b4071a9ac096b02334c1d47468776b948e2de;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..159663b11 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 +19,10 @@ 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:
+      ∀G1,L1,T1. ≥𝐒 ❪G1,L1,T1❫ →
+      ∀G2,L2,T2. ❪G1,L1,T1❫ ≛ ❪G2,L2,T2❫ → ≥𝐒 ❪G2,L2,T2❫.
+#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