X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fmultiple%2Fdrops_drops.ma;h=c2b0b30d1550a2ac4b238989dbcad7864fcc423d;hb=37e1b4f314ffae815beca71300688040f8da6939;hp=2ee3a07ff415d3ab41edbd28c426892ad7351da1;hpb=c60524dec7ace912c416a90d6b926bee8553250b;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/multiple/drops_drops.ma b/matita/matita/contribs/lambdadelta/basic_2/multiple/drops_drops.ma
index 2ee3a07ff..c2b0b30d1 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/multiple/drops_drops.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/multiple/drops_drops.ma
@@ -19,7 +19,7 @@ include "basic_2/multiple/drops_drop.ma".
 (* Main properties **********************************************************)
 
 (* Basic_1: was: drop1_trans *)
-theorem drops_trans: ∀L,L2,s,des2. ⬇*[s, des2] L ≡ L2 → ∀L1,des1. ⬇*[s, des1] L1 ≡ L →
-                     ⬇*[s, des2 @@ des1] L1 ≡ L2.
-#L #L2 #s #des2 #H elim H -L -L2 -des2 /3 width=3 by drops_cons/
+theorem drops_trans: ∀L,L2,s,cs2. ⬇*[s, cs2] L ≡ L2 → ∀L1,cs1. ⬇*[s, cs1] L1 ≡ L →
+                     ⬇*[s, cs2 @@ cs1] L1 ≡ L2.
+#L #L2 #s #cs2 #H elim H -L -L2 -cs2 /3 width=3 by drops_cons/
 qed-.