4 found
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  1.  55
    Characteristic Properties of FPTP Systems.Eliora van der Hout & Harrie de Swart - 2010 - Theory and Decision 68 (3):325-340.
    In this article, we model FPTP systems as social preference rules and give two characterizations. We show that a social preference rule is an FPTP system if, and only if, it satisfies the axioms of subset consistency, district consistency, subset cancellation, and district cancellation. The second characterization consists of the axioms of subset consistency, subset anonymity, neutrality, topsonlyness, Pareto optimality, district consistency and district cancellation. The characterizations give us an opportunity to compare the characteristic properties of FPTP systems to the (...)
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  2.  35
    A Critical Discussion of the Characteristic Properties of List PR and FPTP Systems.Eliora Van Der Hout, Jack Stecher & Harrie De Swart - 2007 - Analyse & Kritik 29 (2):259-268.
    This paper discusses the characteristic properties of List PR systems and FPTP systems, as given in Hout 2005 and Hout et al. 2006. While many of the properties we consider are common to both systems, it turns out that the British system distinguishes itself by satisfying the district cancel lation property, while the Dutch system distinguishes itself by satisfying consistency and anonymity. For scoring rules, topsonlyness is equivalent to being party fragmentation-proof . One might present this as an argument in (...)
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  3.  29
    Implication with Possible Exceptions.Herman Jurjus & Harrie de Swart - 2001 - Journal of Symbolic Logic 66 (2):517-535.
    We introduce an implication-with-possible-exceptions and define validity of rules-with-possible-exceptions by means of the topological notion of a full subset. Our implication-with-possible-exceptions characterises the preferential consequence relation as axiomatized by Kraus, Lehmann and Magidor [Kraus, Lehmann, and Magidor, 1990]. The resulting inference relation is non-monotonic. On the other hand, modus ponens and the rule of monotony, as well as all other laws of classical propositional logic, are valid-up-to-possible exceptions. As a consequence, the rules of classical propositional logic do not determine the (...)
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  4. Hintikka's “The Principles of Mathematics Revisited”'.Harrie de Swart, Tom Verhoeff & Renske Brands - 1997 - Logique Et Analyse 159:281-289.