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.ma;h=93112ac2bc5f7cb937f320a585c042a9f95aa146;hp=d7736ab2013177b4cf901392a7e59e8fb36e67ef;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/static_2/s_transition/fquq.ma b/matita/matita/contribs/lambdadelta/static_2/s_transition/fquq.ma
index d7736ab20..93112ac2b 100644
--- a/matita/matita/contribs/lambdadelta/static_2/s_transition/fquq.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/s_transition/fquq.ma
@@ -37,7 +37,7 @@ interpretation
 lemma fquq_refl: ∀b. tri_reflexive … (fquq b).
 // qed.
 
-lemma fqu_fquq: ∀b,G1,G2,L1,L2,T1,T2. ⦃G1,L1,T1⦄ ⬂[b] ⦃G2,L2,T2⦄ → ⦃G1,L1,T1⦄ ⬂⸮[b] ⦃G2,L2,T2⦄.
+lemma fqu_fquq: ∀b,G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ⬂[b] ❪G2,L2,T2❫ → ❪G1,L1,T1❫ ⬂⸮[b] ❪G2,L2,T2❫.
 /2 width=1 by or_introl/ qed.
 
 (* Basic_2A1: removed theorems 8: