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[helm.git] / helm / dtd / cicobject.dtd

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+<?xml encoding="ISO-8859-1"?>
+
+<!--*****************************************************************-->
+<!-- DTD FOR CIC OBJECTS AT LEVEL OF MATHML CONTENT:                 -->
+<!--  First draft: March 21, Claudio Sacerdoti Coen, Irene Schena    -->
+<!--*****************************************************************-->
+
+<!ENTITY % mathml SYSTEM "mathml2.dtd">
+
+%mathml;
+
+<!ENTITY % term '(annotation|%math.qname;)'>
+
+<!-- Terms: -->
+
+<!ELEMENT annotation (#PCDATA|annotation|%math.qname;)*>
+<!ATTLIST annotation
+          xmlns:m    CDATA #REQUIRED>
+
+<!-- CIC objects: -->
+
+<!ELEMENT Definition (Params,body,type)>
+<!ATTLIST Definition
+          name       CDATA      #REQUIRED
+          xmlns:m    CDATA      #REQUIRED>
+
+<!ELEMENT Axiom (Params,type)>
+<!ATTLIST Axiom
+          name   CDATA #REQUIRED
+          xmlns:m    CDATA      #REQUIRED>
+
+<!ELEMENT CurrentProof (Conjecture*,body,type)>
+<!ATTLIST CurrentProof
+          name CDATA #REQUIRED
+          xmlns:m    CDATA      #REQUIRED>
+
+<!ELEMENT InductiveDefinition (Params,Param*,InductiveType+)>
+<!ATTLIST InductiveDefinition
+          xmlns:m    CDATA      #REQUIRED>
+
+<!ELEMENT Variable (type)>
+<!ATTLIST Variable
+          name CDATA #REQUIRED
+          xmlns:m    CDATA      #REQUIRED>
+
+<!-- Elements used in CIC objects, which are not terms: -->
+
+<!ELEMENT InductiveType (arity,Constructor*)>
+<!ATTLIST InductiveType
+          name      CDATA        #REQUIRED
+          inductive (true|false) #REQUIRED>
+
+<!ELEMENT Conjecture %term;>
+<!ATTLIST Conjecture
+          no NMTOKEN #REQUIRED>
+
+<!ELEMENT Constructor %term;>
+<!ATTLIST Constructor
+          name CDATA #REQUIRED>
+
+<!ELEMENT Param %term;>
+<!ATTLIST Param
+          name CDATA #REQUIRED>
+
+<!ELEMENT Params (#PCDATA)*>
+
+<!-- Sintactic sugar for CIC objects: -->
+
+<!ELEMENT type  %term;>
+
+<!ELEMENT arity %term;>
+
+<!ELEMENT body  %term;>
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