X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fstatic%2Faaa_lifts.ma;h=d3018298d5be557a7f36e91a942e5d46261674cf;hb=43282d3750af8831c8100c60d75c56fdfb7ff3c9;hp=50c795b1f61a82e93450176ae9a4e376f7451b04;hpb=6c985e4e2e7846a2b9abd0c84569f21c24e9ce2f;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/static/aaa_lifts.ma b/matita/matita/contribs/lambdadelta/basic_2/static/aaa_lifts.ma
index 50c795b1f..d3018298d 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/static/aaa_lifts.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/static/aaa_lifts.ma
@@ -19,7 +19,7 @@ include "basic_2/static/aaa_lift.ma".
 
 (* Properties concerning generic relocation *********************************)
 
-lemma aaa_lifts: ∀G,L1,L2,T2,A,s,des. ⇩*[s, des] L2 ≡ L1 → ∀T1. ⇧*[des] T1 ≡ T2 →
+lemma aaa_lifts: ∀G,L1,L2,T2,A,s,des. ⬇*[s, des] L2 ≡ L1 → ∀T1. ⬆*[des] T1 ≡ T2 →
                  ⦃G, L1⦄ ⊢ T1 ⁝ A → ⦃G, L2⦄ ⊢ T2 ⁝ A.
 #G #L1 #L2 #T2 #A #s #des #H elim H -L1 -L2 -des
 [ #L #T1 #H #HT1