X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Frelocation%2Fdrops_vector.ma;h=3c3f2bec8b710eefe2c96aa8ddcbf9c15cb5cc6b;hb=e0c91d8a4422da0b39aca790e5826dc8a617b303;hp=8c43b6404fa841598cc24115fa1b9991c03d2815;hpb=ff612dc35167ec0c145864c9aa8ae5e1ebe20a48;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/static_2/relocation/drops_vector.ma b/matita/matita/contribs/lambdadelta/static_2/relocation/drops_vector.ma
index 8c43b6404..3c3f2bec8 100644
--- a/matita/matita/contribs/lambdadelta/static_2/relocation/drops_vector.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/relocation/drops_vector.ma
@@ -19,8 +19,8 @@ include "static_2/relocation/drops.ma".
 
 definition d_liftable1_all: predicate (relation2 lenv term) ≝
                             λR. ∀K,Ts. all … (R K) Ts →
-                            ∀b,f,L. ⬇*[b, f] L ≘ K →
-                            ∀Us. ⬆*[f] Ts ≘ Us → all … (R L) Us.
+                            ∀b,f,L. ⇩*[b,f] L ≘ K →
+                            ∀Us. ⇧*[f] Ts ≘ Us → all … (R L) Us.
 
 (* Properties with generic relocation for term vectors **********************)