Negation and Disjunction in Discourse Representation Theory  

Oleh:

Krahmer, Emiel ; Muskens, Reinhard

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Semantics (Sebagian Full Text) vol. 12 no. 4 (Apr. 1995), page 357-376.
Topik: disjunction; discourse representation theory;
Fulltext: vol 12, no 4, p 357-376.pdf (877.67KB)

Isi artikel

Classical Discourse Representation Theory (DRT) predicts that an indefinite noun phrase cannot antecede an anaphoric element if the noun phrase is, but the anaphoric clement is not, in the scope of a negation; the theory also predicts that no anaphoric links are possible between the two parts of a disjunction. However, it is well known that these predictions meet with counterexamples. In particular, anaphora is often possible if a double negation intervenes between antecedent and anaphoric element, and also if the antecedent not only occurs in the first part of a disjunction but also within the scope of a negation, while the anaphoric clement is in the second part of the same disjunction. In this paper we argue that these recalcitrant phenomena are related and that a soluaon to the double negation problem will also provide us with a solution to the disjunction problem. We review the basic set-up of classical DRT and offer an extension (called 'Double Negation DRT) which validates the law of double negation An adaptation of the standard DRT construction algonthm which transforms texts into Discourse Representation Structures is sketched and it is shown that the problems with negation and disjunction that led to the definition of our new version of DRT are properly dealt with

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