update in lib

[helm.git] / matita / matita / lib / re / re.ma

diff --git a/matita/matita/lib/re/re.ma b/matita/matita/lib/re/re.ma
index 234d522ae176dde98579f39ac9e6ac09bb11aa32..8ba714b82592f01047735b685663a64ed200f3d5 100644 (file)
--- a/matita/matita/lib/re/re.ma
+++ b/matita/matita/lib/re/re.ma
@@ -13,6 +13,7 @@
 (**************************************************************************)
 
 include "re/lang.ma".
+include "basics/core_notation/card_1.ma".
 
 (* The type re of regular expressions over an alphabet $S$ is the smallest 
 collection of objects generated by the following constructors: *)