X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Fs_transition%2Ffqu_length.ma;h=5356ed66fefb4d06f94e0626fe45bd8dee7395fb;hp=e9d8fcbfc7e34232b96d09eca65b4a18efc331d4;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/static_2/s_transition/fqu_length.ma b/matita/matita/contribs/lambdadelta/static_2/s_transition/fqu_length.ma
index e9d8fcbfc..5356ed66f 100644
--- a/matita/matita/contribs/lambdadelta/static_2/s_transition/fqu_length.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/s_transition/fqu_length.ma
@@ -19,13 +19,13 @@ include "static_2/s_transition/fqu.ma".
 
 (* Forward lemmas with length for local environments ************************)
 
-fact fqu_fwd_length_lref1_aux: ∀b,G1,G2,L1,L2,T1,T2. ⦃G1,L1,T1⦄ ⬂[b] ⦃G2,L2,T2⦄ →
+fact fqu_fwd_length_lref1_aux: ∀b,G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ⬂[b] ❪G2,L2,T2❫ →
                                ∀i. T1 = #i → |L2| < |L1|.
 #b #G1 #G2 #L1 #L2 #T1 #T2 #H elim H -G1 -G2 -L1 -L2 -T1 -T2 // [2,3: #p]
 #I #G #L #V #T [1,2: #_ ] #j #H destruct
 qed-.
 
-lemma fqu_fwd_length_lref1: ∀b,G1,G2,L1,L2,T2,i. ⦃G1,L1,#i⦄ ⬂[b] ⦃G2,L2,T2⦄ →
+lemma fqu_fwd_length_lref1: ∀b,G1,G2,L1,L2,T2,i. ❪G1,L1,#i❫ ⬂[b] ❪G2,L2,T2❫ →
                             |L2| < |L1|.
 /2 width=8 by fqu_fwd_length_lref1_aux/
 qed-.