--- /dev/null
+<?xml encoding="ISO-8859-1"?>
+
+<!-- Copyright (C) 2000, HELM Team -->
+<!-- -->
+<!-- This file is part of HELM, an Hypertextual, Electronic -->
+<!-- Library of Mathematics, developed at the Computer Science -->
+<!-- Department, University of Bologna, Italy. -->
+<!-- -->
+<!-- HELM is free software; you can redistribute it and/or -->
+<!-- modify it under the terms of the GNU General Public License -->
+<!-- as published by the Free Software Foundation; either version 2 -->
+<!-- of the License, or (at your option) any later version. -->
+<!-- -->
+<!-- HELM is distributed in the hope that it will be useful, -->
+<!-- but WITHOUT ANY WARRANTY; without even the implied warranty of -->
+<!-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -->
+<!-- GNU General Public License for more details. -->
+<!-- -->
+<!-- You should have received a copy of the GNU General Public License -->
+<!-- along with HELM; if not, write to the Free Software -->
+<!-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, -->
+<!-- MA 02111-1307, USA. -->
+<!-- -->
+<!-- For details, see the HELM World-Wide-Web page, -->
+<!-- http://cs.unibo.it/helm/. -->
+
+<!--*****************************************************************-->
+<!-- DTD FOR INNER TYPES: -->
+<!-- First draft: November 11 2000, Claudio Sacerdoti Coen -->
+<!--*****************************************************************-->
+
+<!ENTITY % cicdtd SYSTEM "cic.dtd">
+
+%cicdtd;
+
+<!ELEMENT InnerTypes (TYPE*)>
+<!ATTLIST InnerTypes
+ of CDATA #REQUIRED>
+
+<!ELEMENT TYPE (synthesized,expected?)>
+<!ATTLIST TYPE
+ of NMTOKEN #REQUIRED>
+
+<!ELEMENT synthesized %term;>
+
+<!ELEMENT expected %term;>