update in lib

[helm.git] / matita / matita / lib / tutorial / chapter8.ma

diff --git a/matita/matita/lib/tutorial/chapter8.ma b/matita/matita/lib/tutorial/chapter8.ma
index 427b148427f3e34efde54a55286a284424c0b1be..47cfbdeb7b392e6539c1ff877898334142e64fe4 100644 (file)
--- a/matita/matita/lib/tutorial/chapter8.ma
+++ b/matita/matita/lib/tutorial/chapter8.ma
@@ -5,6 +5,7 @@ We shall apply all the previous machinery to the study of regular languages
 and the constructions of the associated finite automata. *)
 
 include "tutorial/chapter7.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: *)