milestone update in ground

[helm.git] / matita / matita / contribs / lambdadelta / ground / lib / list_length.ma

diff --git a/matita/matita/contribs/lambdadelta/ground/lib/list_length.ma b/matita/matita/contribs/lambdadelta/ground/lib/list_length.ma
index 0d67e73901dd2778ccf7c76ad6a31effd0638652..9a79aa5322ae46111512db7bffa0f985026e2162 100644 (file)
--- a/matita/matita/contribs/lambdadelta/ground/lib/list_length.ma
+++ b/matita/matita/contribs/lambdadelta/ground/lib/list_length.ma
@@ -17,8 +17,7 @@ include "ground/arith/nat_succ.ma".
 
 (* LENGTH FOR LISTS *********************************************************)
 
-rec definition list_length A (l:list A) on l ≝
-match l with
+rec definition list_length A (l:list A) on l ≝ match l with
 [ list_nil      ⇒ 𝟎
 | list_cons _ l ⇒ ↑(list_length A l)
 ].