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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Id: spec.rng,v 1.3 2001/10/23 05:54:24 jjc Exp $ -->
<grammar xmlns="http://relaxng.org/ns/structure/1.0"
datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes"
xmlns:p="http://relaxng.org/ns/proofsystem">
<start>
<grammar>
<include href="docbook.rng"/>
<define name="synop.class" combine="choice">
<choice>
<parentRef name="rngref"/>
<parentRef name="grammarref"/>
<grammar>
<include href="proofsystem.rng"/>
<start combine="choice">
<ref name="formula"/>
</start>
</grammar>
</choice>
</define>
<define name="tech.char.class" combine="choice">
<parentRef name="terms"/>
</define>
</grammar>
</start>
<define name="rngref">
<element name="rngref">
<attribute name="src">
<data type="anyURI"/>
</attribute>
</element>
</define>
<define name="grammarref">
<element name="grammarref">
<attribute name="src">
<data type="anyURI"/>
</attribute>
</element>
</define>
<define name="terms">
<grammar>
<include href="proofsystem.rng">
<start>
<choice>
<ref name="expr"/>
<ref name="judgement"/>
<ref name="context"/>
</choice>
</start>
</include>
</grammar>
</define>
</grammar>