X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fcomputation%2Ffpbc_fpbs.ma;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fcomputation%2Ffpbc_fpbs.ma;h=2c45646ede54ee7648a284497d945c4e7c043f33;hb=7a25b8fcba2436a75556db1725c6e1be78a9faca;hp=7d81c812d5214e0c0742461d0ab728b03dd7a83d;hpb=6aab24b40d5d09561375959043ecd85c8b428d85;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/computation/fpbc_fpbs.ma b/matita/matita/contribs/lambdadelta/basic_2/computation/fpbc_fpbs.ma
index 7d81c812d..2c45646ed 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/computation/fpbc_fpbs.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/computation/fpbc_fpbs.ma
@@ -20,7 +20,7 @@ include "basic_2/computation/fpbc.ma".
 
 (* Forward lemmas on "big tree" parallel computation for closures ***********)
 
-lemma fpbc_fwd_fpbs: ∀h,g,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ≻⋕[h, g] ⦃G2, L2, T2⦄ →
+lemma fpbc_fwd_fpbs: ∀h,g,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ≻≡[h, g] ⦃G2, L2, T2⦄ →
                      ⦃G1, L1, T1⦄ ≥[h, g] ⦃G2, L2, T2⦄.
 #h #g #G1 #G2 #L1 #L2 #T1 #T2 *
 /3 width=5 by fpbu_fwd_fpbs, fpbs_trans, fleq_fpbs/