✦ LIBER ✦

Negation-Free Modal Logics

✍ Scribed by George F. Schumm; Roy Edelstein

Publisher: John Wiley and Sons
Year: 1979
Tongue: English
Weight: 521 KB
Volume: 25
Category: Article
ISSN: 0044-3050
DOI: 10.1002/malq.19790251310

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📜 SIMILAR VOLUMES

Modal sequents for normal modal logics

✍ Claudio Cerrato 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 433 KB

## Abstract We present sequent calculi for normal modal logics where modal and propositional behaviours are separated, and we prove a cut elimination theorem for the basic system K, so as completeness theorems (in the new style) both for K itself and for its most popular enrichments. MSC: 03B45, 03

Classically complete modal relevant logi

Classically complete modal relevant logics

✍ Edwin D. Mares 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 674 KB

## Abstract A variety of modal logics based on the relevant logic R are presented. Models are given for each of these logics and completeness is shown. It is also shown that each of these logics admits Ackermann's rule γ and as a corollary of this it is proved that each logic is a conservative exte

The completeness of monotonic modal logi

The completeness of monotonic modal logics

✍ Brian F. Chellas; Audrey McKinney 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 379 KB

The purpose of this paper is to point out an error in KRISTER SEGERBERG'S proof of the completeness of the modal logic R, and to provide a correct proof.2) The correct proofbased on a notion and a strategy suggested by SEOERBERO'S techniquesintroduces a general approach for obtaining completeness th

On antonym and negate in fuzzy logic

✍ Adolfo R. de Soto; Enric Trillas 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 88 KB

´The abilities to speak well and to conceptualize seem to be closely linked. It has been maintained that the human brain has a preference for binary oppositions or polarities. The notions of antonym and negate are examples of polarity between the pairs of predicates P y no P, P y ant P. Other charac

Modal-type orthomodular logic

✍ Graciela Domenech; Hector Freytes; Christian de Ronde 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 138 KB

## Abstract In this paper we enrich the orthomodular structure by adding a modal operator, following a physical motivation. A logical system is developed, obtaining algebraic completeness and completeness with respect to a Kripkestyle semantic founded on Baer\*‐semigroups as in [22] (© 2009 WILEY‐V

A Companion to Philosophical Logic || Mo

A Companion to Philosophical Logic || Modal Logic

✍ Jacquette, Dale 📂 Article 📅 2006 🏛 Blackwell Publishing Ltd 🌐 English ⚖ 121 KB 👁 2 views

Edited By Dale Jacquette. Includes Bibliographical References And Index.