X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frelocation%2Fdrops_vector.ma;h=6a7560248f692ed7c04de6d7ed21ea61f4966c62;hp=d2c1628060e39fb0f827bf9118828f8283e34b65;hb=222044da28742b24584549ba86b1805a87def070;hpb=9be6753b7f120a4222df17d1116fe91e871f9367

diff --git a/matita/matita/contribs/lambdadelta/basic_2/relocation/drops_vector.ma b/matita/matita/contribs/lambdadelta/basic_2/relocation/drops_vector.ma
index d2c162806..6a7560248 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/relocation/drops_vector.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/relocation/drops_vector.ma
@@ -19,8 +19,8 @@ include "basic_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 **********************)