X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frelocation%2Flreq_length.ma;h=69c4efa31120341bc33d5c31ea0968f5db4ad64f;hp=fcb54e71ac4f9ddea73abe5e844a632977b9eba3;hb=268e7f336d036f77ffc9663358e9afda92b97730;hpb=1604f2ee65c57eefb7c6b3122eab2a9f32e0552d

diff --git a/matita/matita/contribs/lambdadelta/basic_2/relocation/lreq_length.ma b/matita/matita/contribs/lambdadelta/basic_2/relocation/lreq_length.ma
index fcb54e71a..69c4efa31 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/relocation/lreq_length.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/relocation/lreq_length.ma
@@ -20,5 +20,5 @@ include "basic_2/relocation/lreq.ma".
 (* Forward lemmas with length for local environments ************************)
 
 (* Basic_2A1: includes: lreq_fwd_length *)
-lemma lreq_fwd_length: ∀f,L1,L2. L1 ≡[f] L2 → |L1| = |L2|.
+lemma lreq_fwd_length: ∀f,L1,L2. L1 ≐[f] L2 → |L1| = |L2|.
 /2 width=4 by lexs_fwd_length/ qed-.