1 <?xml encoding="ISO-8859-1"?>
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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 <!-- Third draft: May 3 2001, Irene Schena -->
32 <!--*****************************************************************-->
35 CONJECTURE (teo da dim)
39 <!ENTITY % cicobj SYSTEM "cicobject.dtd">
43 <!ENTITY % theorystructure
44 '(ht:AXIOM|ht:DEFINITION|ht:THEOREM|ht:VARIABLE|ht:SECTION|ht:MUTUAL)*'>
46 <!ELEMENT ht:SECTION (%theorystructure;)>
50 <!ELEMENT ht:MUTUAL (ht:DEFINITION,ht:DEFINITION+)>
54 <!ELEMENT ht:AXIOM (Axiom)>
57 as (Axiom|Declaration) #REQUIRED>
59 <!ELEMENT ht:DEFINITION (Definition|InductiveDefinition)>
60 <!ATTLIST ht:DEFINITION
62 as (Definition|Inductive|CoInductive|Record) #REQUIRED>
64 <!ELEMENT ht:THEOREM (type)>
67 as (Theorem|Lemma|Corollary|Fact|Remark) #REQUIRED>
69 <!ELEMENT ht:VARIABLE (Variable)>
72 as (Assumption|Hypothesis|LocalDefinition) #REQUIRED>