X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=weblib%2Ftutorial%2Fchapter2.ma;h=2942d61524b941cc00daa7c6e59adb49bf974416;hb=2e5d77caec4504b736af370743df2e460e9590f3;hp=e3dfd1d4470a8bac423d9177f25e9b5b9d9ec49d;hpb=30300931770211efb6bf03785f98b4ff21353c40;p=helm.git

diff --git a/weblib/tutorial/chapter2.ma b/weblib/tutorial/chapter2.ma
index e3dfd1d44..2942d6152 100644
--- a/weblib/tutorial/chapter2.ma
+++ b/weblib/tutorial/chapter2.ma
@@ -1,4 +1,6 @@
+(*
 h1 class="section"Induction and Recursion/h1
+*)
 include "basics/types.ma".
 
 (* Most of the types we have seen so far are enumerated types, composed by a 
@@ -282,4 +284,4 @@ example quotient7: a href="cic:/matita/tutorial/chapter2/witness.fix(0,2,1)"wi
 example quotient8: a href="cic:/matita/tutorial/chapter2/witness.fix(0,2,1)"witness/a … (a href="cic:/matita/tutorial/chapter2/div2Pagain.def(4)"div2Pagain/a (a href="cic:/matita/tutorial/chapter2/twice.def(2)"twice/a (a href="cic:/matita/tutorial/chapter2/twice.def(2)"twice/a (a href="cic:/matita/tutorial/chapter2/twice.def(2)"twice/a (a href="cic:/matita/tutorial/chapter2/twice.def(2)"twice/a (a href="cic:/matita/tutorial/chapter2/nat.con(0,2,0)"S/a a href="cic:/matita/tutorial/chapter2/nat.con(0,1,0)"O/a)))))) 
        a title="leibnitz's equality" href="cic:/fakeuri.def(1)"=/a a title="Pair construction" href="cic:/fakeuri.def(1)"〈/aa href="cic:/matita/tutorial/chapter2/twice.def(2)"twice/a (a href="cic:/matita/tutorial/chapter2/twice.def(2)"twice/a (a href="cic:/matita/tutorial/chapter2/twice.def(2)"twice/a (a href="cic:/matita/tutorial/chapter2/nat.con(0,2,0)"S/a a href="cic:/matita/tutorial/chapter2/nat.con(0,1,0)"O/a))), a href="cic:/matita/tutorial/chapter2/bool.con(0,2,0)"ff/a〉.
 // qed. 
-prepre /pre/pre
\ No newline at end of file
+prepre /pre/pre