+<!-- XXX: OUTDATED (WR)
+
+ <h2>Tutorials<a name="tutorial"></a></h2>
+
+ <p>A not so short <a href="FILES/matita-tut.pdf">tutorial</a> by
+ A.Asperti, discussing some basic notions of number theory, for
+ the stable version of Matita.</p>
+
+ <p>A <a href="docs/tutorial/igft.html">tutorial</a> by E.Tassi based on
+ the formalization of the paper "Between formal topology and game theory:
+ an explicit solution for the conditions for an inductive generation of
+ formal topologies" by S.Berardi and S.Valentini. The tutorial describes
+ the ng version of Matita (not officially released yet, cohexisting with
+ the stable system in version 0.5.8). If some characters are not displayed
+ correctly (i.e. you are not using firefox) you may try the
+ <a href="docs/tutorial/igft.pdf">pdf version</a>.
+ </p>