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  1. Putting Right the Wording and the Proof of the Truth Lemma for APAL.Philippe Balbiani - 2015 - Journal of Applied Non-Classical Logics 25 (1):2-19.
    is an extension of public announcement logic. It is based on a modal operator that expresses what is true after any arbitrary announcement. An incorrect Truth Lemma has been stated and ‘demonstrated’ in Balbiani et al. . In this paper, we put right the wording and the proof of the Truth Lemma for.
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  • Notes on Logics of Metric Spaces.Oliver Kutz - 2007 - Studia Logica 85 (1):75-104.
    In [14], we studied the computational behaviour of various first-order and modal languages interpreted in metric or weaker distance spaces. [13] gave an axiomatisation of an expressive and decidable metric logic. The main result of this paper is in showing that the technique of representing metric spaces by means of Kripke frames can be extended to cover the modal (hybrid) language that is expressively complete over metric spaces for the (undecidable) two-variable fragment of first-order logic with binary pred-icates interpreting the (...)
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  • Elementary Canonical Formulae: A Survey on Syntactic, Algorithmic, and Modeltheoretic Aspects.W. Conradie, V. Goranko & D. Vakarelov - 2005 - In Renate Schmidt, Ian Pratt-Hartmann, Mark Reynolds & Heinrich Wansing (eds.), Advances in Modal Logic, Volume 5. Kings College London Publ.. pp. 17-51.
    In terms of validity in Kripke frames, a modal formula expresses a universal monadic second-order condition. Those modal formulae which are equivalent to first-order conditions are called elementary. Modal formulae which have a certain persistence property which implies their validity in all canonical frames of modal logics axiomatized with them, and therefore their completeness, are called canonical. This is a survey of a recent and ongoing study of the class of elementary and canonical modal formulae. We summarize main ideas and (...)
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  • Modal Logic and Universal Algebra I: Modal Axiomatizations of Structures.Valentin Goranko & Dimiter Vakarelov - 2000 - In Michael Zakharyaschev, Krister Segerberg, Maarten de Rijke & Heinrich Wansing (eds.), Advances in Modal Logic, Volume 2. CSLI Publications. pp. 265-292.
    We study the general problem of axiomatizing structures in the framework of modal logic and present a uniform method for complete axiomatization of the modal logics determined by a large family of classes of structures of any signature.
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  • PDL with Intersection of Programs: A Complete Axiomatization.Philippe Balbiani & Dimiter Vakarelov - 2003 - Journal of Applied Non-Classical Logics 13 (3-4):231-276.
    One of the important extensions of PDL is PDL with intersection of programs. We devote this paper to its complete axiomatization.
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  • Dynamic Extensions of Arrow Logic.Philippe Balbiani & Dimiter Vakarelov - 2004 - Annals of Pure and Applied Logic 127 (1-3):1-15.
    This paper is devoted to the complete axiomatization of dynamic extensions of arrow logic based on a restriction of propositional dynamic logic with intersection. Our deductive systems contain an unorthodox inference rule: the inference rule of intersection. The proof of the completeness of our deductive systems uses the technique of the canonical model.
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