X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_transition%2Flpr_length.ma;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_transition%2Flpr_length.ma;h=f7a1341e5815e132058a65c6dcef232abcae7f43;hb=8ec019202bff90959cf1a7158b309e7f83fa222e;hp=3a548a496ace9fcb0cf8aed330cb355d77c32508;hpb=33d0a7a9029859be79b25b5a495e0f30dab11f37;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/lpr_length.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/lpr_length.ma
index 3a548a496..f7a1341e5 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/lpr_length.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/lpr_length.ma
@@ -17,5 +17,5 @@ include "basic_2/rt_transition/lpr.ma".
 
 (* PARALLEL R-TRANSITION FOR FULL LOCAL ENVIRONMENTS ************************)
 
-lemma lpr_fwd_length (h) (G): ∀L1,L2. ❪G,L1❫ ⊢ ➡[h,0] L2 → |L1| = |L2|.
+lemma lpr_fwd_length (h) (G): ∀L1,L2. ❨G,L1❩ ⊢ ➡[h,0] L2 → |L1| = |L2|.
 /2 width=2 by lex_fwd_length/ qed-.