decentralizing core notation

[helm.git] / matita / matita / lib / tutorial / chapter6.ma

diff --git a/matita/matita/lib/tutorial/chapter6.ma b/matita/matita/lib/tutorial/chapter6.ma
index 38fb54a0c3afa3a96be06c7d31a35285d3a651ff..a5355b5fa990fdea2185197ca25a45553ff5e5d9 100644 (file)
--- a/matita/matita/lib/tutorial/chapter6.ma
+++ b/matita/matita/lib/tutorial/chapter6.ma
@@ -1,5 +1,6 @@
 
 include "tutorial/chapter5.ma".
+include "basics/core_notation/singl_1.ma".
 
 (*************************** Naive Set Theory *********************************)