commit by user andrea

diff --git a/weblib/tutorial/chapter6.ma b/weblib/tutorial/chapter6.ma
index 430fc3f2140b002580629e498d0a89762b2a808d..cadc0065c3bc06a1b610a5312827fdf9a680ea8b 100644 (file)
--- a/weblib/tutorial/chapter6.ma
+++ b/weblib/tutorial/chapter6.ma
@@ -1,6 +1,4 @@
-include "basics/list.ma".
-include "basics/sets.ma".
-include "basics/deqsets.ma".
+include "tutorial/chapter5.ma".
 
 definition word ≝ λS:DeqSet.list S.
 
@@ -129,4 +127,3 @@ lemma distr_cat_r_eps: ∀S.∀A,C:word S →Prop.
   (A ∪ {ϵ}) · C =1  A · C ∪ C. 
 #S #A #C @eqP_trans [|@distr_cat_r |@eqP_union_l @epsilon_cat_l]
 qed.
-