diff -r 0242c9c980df -r a31203f58b20 doc-src/IsarRef/Thy/intro.thy
--- a/doc-src/IsarRef/Thy/intro.thy	Thu May 08 14:52:07 2008 +0200
+++ b/doc-src/IsarRef/Thy/intro.thy	Thu May 08 22:05:15 2008 +0200
@@ -287,10 +287,8 @@
   \medskip The present text really is only a reference manual on
   Isabelle/Isar, not a tutorial.  Nevertheless, we will attempt to
   give some clues of how the concepts introduced here may be put into
-  practice.  \Appref{ap:refcard} provides a quick reference card of
-  the most common Isabelle/Isar language elements.  \Appref{ap:conv}
-  offers some practical hints on converting existing Isabelle theories
-  and proof scripts to the new format (without restructuring proofs).
+  practice.  Especially note that \appref{ap:refcard} provides a quick
+  reference card of the most common Isabelle/Isar language elements.
 
   Further issues concerning the Isar concepts are covered in the
   literature