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=e9d8fcbfc7e34232b96d09eca65b4a18efc331d4;hp=c2aa1a8296fcf5c6851408327f1304ade6fc7640;hb=a454837a256907d2f83d42ced7be847e10361ea9;hpb=b4283c079ed7069016b8d924bbc7e08872440829

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 c2aa1a829..e9d8fcbfc 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 [2: #_ ] #j #H destruct
+#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-.