X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Flib%2Ftutorial%2Fchapter5.ma;h=b1493982ce9fea0bc002020a84c733e766454dc8;hb=refs%2Fheads%2Fmaster;hp=21a8abd2fcc515d169a2dca0335ab3136497da8f;hpb=b58a13d78f5c7a37000538429aeefcd54662b570;p=helm.git

diff --git a/matita/matita/lib/tutorial/chapter5.ma b/matita/matita/lib/tutorial/chapter5.ma
index 21a8abd2f..b1493982c 100644
--- a/matita/matita/lib/tutorial/chapter5.ma
+++ b/matita/matita/lib/tutorial/chapter5.ma
@@ -4,7 +4,7 @@
 
 include "tutorial/chapter4.ma".
 include "arithmetics/nat.ma".
-
+include "basics/core_notation/card_1.ma".
 
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