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<Paper uid="E93-1014">
  <Title>On the notion of uniqueness *</Title>
  <Section position="9" start_page="111" end_page="111" type="concl">
    <SectionTitle>
6 Conclusion
</SectionTitle>
    <Paragraph position="0"> In many logic-based discourse theories, the notion of constituent unit has largely disappeared (disregarding quantificational structures for the moment).</Paragraph>
    <Paragraph position="1"> These theories do, however, often respect the order in which constituents appear in the surface string, acknowledging that the left-to-right order of a string is of importance. This is not reflected in the discourse representation, though. In this paper, I have shown in what way exactly this left-to-right order influences the truth conditions.</Paragraph>
    <Paragraph position="2"> When a discourse proceeds, the values to be assigned to the reference markers in the discourse are gradually constrained. If this is the case, then it makes no difference in which order we constrain the interpretation: the result will be the same. However, some linguistic markers fix the interpretation of a discourse marker at a certain point. It has been shown that in these cases, the order of constraints is to be preserved in order to capture the right truth conditions. In the proposal, unique constituents are analysed in such a way that they impose an asymmetric relation upon the conjoined conditions of DRSformulae. As such, they add more structure to the discourse representation structures.</Paragraph>
  </Section>
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