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Proof-Theory and Semantics for a Theory of Definite Descriptions

Kürbis, N; (2021) Proof-Theory and Semantics for a Theory of Definite Descriptions. In: Das, A and Negri, S, (eds.) TABLEAUX 2021: Automated Reasoning with Analytic Tableaux and Related Methods. (pp. 95-111). Springer: Cham, Switzerland. Green open access

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Abstract

This paper presents a sequent calculus and a dual domain semantics for a theory of definite descriptions in which these expressions are formalised in the context of complete sentences by a binary quantifier I. I forms a formula from two formulas. Ix[F, G] means ‘The F is G’. This approach has the advantage of incorporating scope distinctions directly into the notation. Cut elimination is proved for a system of classical positive free logic with I and it is shown to be sound and complete for the semantics. The system has a number of novel features and is briefly compared to the usual approach of formalising ‘the F’ by a term forming operator. It does not coincide with Hintikka’s and Lambert’s preferred theories, but the divergence is well-motivated and attractive.

Type: Book chapter
Title: Proof-Theory and Semantics for a Theory of Definite Descriptions
Open access status: An open access version is available from UCL Discovery
DOI: 10.1007/978-3-030-86059-2_6
Publisher version: https://doi.org/10.1007/978-3-030-86059-2_6
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Definite descriptions, Positive free logic, Proof theory, Sequent calculus, Cut elimination, Dual domain semantics
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of Arts and Humanities
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of Arts and Humanities > Dept of Philosophy
URI: https://discovery.ucl.ac.uk/id/eprint/10132750
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