X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frelocation%2Flreq_length.ma;h=69c4efa31120341bc33d5c31ea0968f5db4ad64f;hb=268e7f336d036f77ffc9663358e9afda92b97730;hp=1b932c4609c048d0caf09a529738ecd58d821b03;hpb=bb6e68b2cf746bb3108543807207a1ca628ab442;p=helm.git

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 1b932c460..69c4efa31 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/relocation/lreq_length.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/relocation/lreq_length.ma
@@ -17,8 +17,8 @@ include "basic_2/relocation/lreq.ma".
 
 (* RANGED EQUIVALENCE FOR LOCAL ENVIRONMENTS ********************************)
 
-(* Forward lemmas on length for local environments **************************)
+(* Forward lemmas with length for local environments ************************)
 
 (* Basic_2A1: includes: lreq_fwd_length *)
-lemma lreq_fwd_length: ∀L1,L2,f. 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-.