update in ground, basic_2A and apps_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2A / multiple / drops_drops.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2A/multiple/drops_drops.ma b/matita/matita/contribs/lambdadelta/basic_2A/multiple/drops_drops.ma
index 36f7cc9abae8d445d0d4d6efdcc550e8d54df94a..c8387083e08f8d6f1186e8b346739c07d126cd03 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2A/multiple/drops_drops.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2A/multiple/drops_drops.ma
@@ -20,6 +20,6 @@ include "basic_2A/multiple/drops_drop.ma".
 (* Main properties **********************************************************)
 
 theorem drops_trans: ∀L,L2,s,cs2. ⬇*[s, cs2] L ≡ L2 → ∀L1,cs1. ⬇*[s, cs1] L1 ≡ L →
-                     ⬇*[s, cs2 ;; cs1] L1 ≡ L2.
+                     ⬇*[s, cs2 ● cs1] L1 ≡ L2.
 #L #L2 #s #cs2 #H elim H -L -L2 -cs2 /3 width=3 by drops_cons/
 qed-.