X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Frelocation%2Flifts_weight.ma;h=e3830a0ac99c0e34d9bcab7c984ffea6902229ea;hb=67fe9cec87e129a2a41c75d7ed8456a6f3314421;hp=358660fe2eb14e0a7fd2e58fdddf767ddb0ba8bd;hpb=86861e6f031df66824a381527dfe847029ff72bc;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_weight.ma b/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_weight.ma
index 358660fe2..e3830a0ac 100644
--- a/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_weight.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/relocation/lifts_weight.ma
@@ -20,6 +20,6 @@ include "static_2/relocation/lifts.ma".
 (* Forward lemmas with weight for terms *************************************)
 
 (* Basic_2A1: includes: lift_fwd_tw *)
-lemma lifts_fwd_tw: ∀f,T1,T2. ⬆*[f] T1 ≘ T2 → ♯{T1} = ♯{T2}.
+lemma lifts_fwd_tw: ∀f,T1,T2. ⇧*[f] T1 ≘ T2 → ♯{T1} = ♯{T2}.
 #f #T1 #T2 #H elim H -f -T1 -T2 normalize //
 qed-.