1 <?xml encoding="ISO-8859-1"?>
3 <!-- Copyright (C) 2000, HELM Team -->
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6 <!-- Library of Mathematics, developed at the Computer Science -->
7 <!-- Department, University of Bologna, Italy. -->
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27 <!--*****************************************************************-->
28 <!-- DTD FOR THEORY OBJECTS AT LEVEL OF MATHML CONTENT: -->
29 <!-- First draft: May 9 2000, Irene Schena -->
30 <!-- Second draft: March 15 2001, Irene Schena -->
31 <!--*****************************************************************-->
34 CONJECTURE (teo da dim)
38 <!ENTITY % cicobj SYSTEM "cicobject.dtd">
42 <!ENTITY % theorystructure '(THEOREM|LEMMA|COROLLARY|AXIOM|FACT|DEFINITION|
47 <!ELEMENT Theory (%theorystructure;)>
54 <!ELEMENT THEOREM (type)>
59 <!ELEMENT LEMMA (type)>
64 <!ELEMENT COROLLARY (type)>
69 <!ELEMENT AXIOM (Axiom)>
74 <!ELEMENT FACT (type)>
79 <!ELEMENT DEFINITION (Definition|InductiveDefinition)>
84 <!ELEMENT VARIABLE (Variable)>
89 <!ELEMENT SECTION (%theorystructure;)>