1 <?xml encoding="ISO-8859-1"?>
3 <!-- Copyright (C) 2000, HELM Team -->
5 <!-- This file is part of HELM, an Hypertextual, Electronic -->
6 <!-- Library of Mathematics, developed at the Computer Science -->
7 <!-- Department, University of Bologna, Italy. -->
9 <!-- HELM is free software; you can redistribute it and/or -->
10 <!-- modify it under the terms of the GNU General Public License -->
11 <!-- as published by the Free Software Foundation; either version 2 -->
12 <!-- of the License, or (at your option) any later version. -->
14 <!-- HELM is distributed in the hope that it will be useful, -->
15 <!-- but WITHOUT ANY WARRANTY; without even the implied warranty of -->
16 <!-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -->
17 <!-- GNU General Public License for more details. -->
19 <!-- You should have received a copy of the GNU General Public License -->
20 <!-- along with HELM; if not, write to the Free Software -->
21 <!-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, -->
22 <!-- MA 02111-1307, USA. -->
24 <!-- For details, see the HELM World-Wide-Web page, -->
25 <!-- http://cs.unibo.it/helm/. -->
27 <!--*****************************************************************-->
28 <!-- DTD FOR THEORY OBJECTS AT LEVEL OF CIC XML FILES: -->
29 <!-- First draft: May 10 2000, Claudio Sacerdoti Coen, Irene Schena -->
30 <!-- Revised: February 2001, Claudio Sacerdoti Coen -->
31 <!-- Revised: May 01 2001, Claudio Sacerdoti Coen -->
32 <!--*****************************************************************-->
35 <!--*****************************************************************-->
36 <!-- Note: the intended meaning for this markup is to be embedded -->
37 <!-- into other types of markup (e.g. XHTML or DocBook). Hence, the -->
38 <!-- DTD is only "indicative" and no root element is provided. -->
39 <!--*****************************************************************-->
41 <!ENTITY % mathstructure
42 '(ht:AXIOM|ht:DEFINITION|ht:THEOREM|ht:VARIABLE|ht:SECTION|ht:MUTUAL)*'>
44 <!ELEMENT ht:OBJECT EMPTY>
47 mode (typeonly|embed|linkonly) #REQUIRED>
49 <!ELEMENT ht:AXIOM EMPTY>
52 as (Axiom|Declaration) #REQUIRED>
54 <!ELEMENT ht:DEFINITION EMPTY>
55 <!ATTLIST ht:DEFINITION
57 as (Definition|Inductive|CoInductive|Record) #REQUIRED>
59 <!ELEMENT ht:THEOREM EMPTY>
62 as (Theorem|Lemma|Corollary|Fact|Remark) #REQUIRED>
64 <!ELEMENT ht:VARIABLE EMPTY>
67 as (Assumption|Hypothesis|LocalDefinition) #REQUIRED>
69 <!ELEMENT ht:SECTION (%mathstructure;)>
73 (*CSC: In the case of a set of mutual (Co)Inductive DEFINITIONS, *)
74 (*CSC: all the entries inside ht:MUTUAL have the same URI ;-| *)
75 <!ELEMENT ht:MUTUAL (ht:DEFINITION,ht:DEFINITION+)>