X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Fs_transition%2Ffquq_length.ma;h=20bc7f0bd83280df36dc95dbf389ceb5c160fd7f;hp=3985a6c9ebb43f3df2dd709d8424078244a1be48;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/static_2/s_transition/fquq_length.ma b/matita/matita/contribs/lambdadelta/static_2/s_transition/fquq_length.ma
index 3985a6c9e..20bc7f0bd 100644
--- a/matita/matita/contribs/lambdadelta/static_2/s_transition/fquq_length.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/s_transition/fquq_length.ma
@@ -19,7 +19,7 @@ include "static_2/s_transition/fquq.ma".
 
 (* Forward lemmas with length for local environments ************************)
 
-lemma fquq_fwd_length_lref1: ∀b,G1,G2,L1,L2,T2,i. ⦃G1,L1,#i⦄ ⬂⸮[b] ⦃G2,L2,T2⦄ →
+lemma fquq_fwd_length_lref1: ∀b,G1,G2,L1,L2,T2,i. ❪G1,L1,#i❫ ⬂⸮[b] ❪G2,L2,T2❫ →
                              |L2| ≤ |L1|.
 #b #G1 #G2 #L1 #L2 #T2 #i #H elim H -H [2: * ]
 /3 width=6 by fqu_fwd_length_lref1, lt_to_le/