X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fdtd%2Fcic.dtd;h=0a90d9e908fe367780af3bfc0a7d2b418ccca933;hb=5868bef6637af919fbb48a83c24268bb85bdef6a;hp=a0071070e3a2bc1f4d5741f9fb044dad9cbfb8e6;hpb=89d2370db1ef266be1dce32c0f9ca0552f6fe2f7;p=helm.git

diff --git a/helm/dtd/cic.dtd b/helm/dtd/cic.dtd
index a0071070e..0a90d9e90 100644
--- a/helm/dtd/cic.dtd
+++ b/helm/dtd/cic.dtd
@@ -1,5 +1,29 @@
 <?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 CIC OBJECTS:                                            -->
 <!--  First draft: September 1999, Claudio Sacerdoti Coen            -->
@@ -79,7 +103,8 @@
 
 <!ELEMENT PROD (source,target)>
 <!ATTLIST PROD
-          id ID #REQUIRED>
+          id   ID     #REQUIRED
+          type %sort; #REQUIRED>
 
 <!ELEMENT CAST (term,type)>
 <!ATTLIST CAST