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  1. Formal Issues of Trope-Only Theories of Universals.Francesco Maria Ferrari - 2022 - Erkenntnis 89 (3):919-946.
    The paper discusses some formal difficulties concerning the theory of universals of Trope-Only ontologies, from which the formal theory of predication advanced by Trope-Only theorists seems to be irremediably affected. It is impossible to lay out a successful defense of a Trope-Only theory without Russellian types, but such types are ontologically inconsistent with tropes’ nominalism. Historically, Tropists’ first way to avoid the problem is appealing to the supervenience claim, which however fails on its terms and, thus, fails as a ground (...)
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  • Isomorphism invariance and overgeneration.Owen Griffiths & A. C. Paseau - 2016 - Bulletin of Symbolic Logic 22 (4):482-503.
    The isomorphism invariance criterion of logical nature has much to commend it. It can be philosophically motivated by the thought that logic is distinctively general or topic neutral. It is capable of precise set-theoretic formulation. And it delivers an extension of ‘logical constant’ which respects the intuitively clear cases. Despite its attractions, the criterion has recently come under attack. Critics such as Feferman, MacFarlane and Bonnay argue that the criterion overgenerates by incorrectly judging mathematical notions as logical. We consider five (...)
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  • An argument against nominalism.Francesco Maria Ferrari - 2022 - Synthese 200 (5):1-23.
    Nominalism in formal ontology is still the thesis that the only acceptable domain of quantification is the first-order domain of particulars. Nominalists may assert that second-order well-formed formulas can be fully and completely interpreted within the first-order domain, thereby avoiding any ontological commitment to second-order entities, by means of an appropriate semantics called “substitutional”. In this paper I argue that the success of this strategy depends on the ability of Nominalists to maintain that identity, and equivalence relations more in general, (...)
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  • Constantes logiques et décision.Saloua Chatti - 2015 - Philosophia Scientiae 19:229-250.
    Dans cet article, j'analyse le problème des significations des constantes logiques. Ces significations sont-elles fixées conventionnellement comme le suggèrent Carnap et Wittgenstein, ou bien doivent-elles s'imposer à tous et ne pas dépendre de décisions préalables? Après avoir examiné le conventionnalisme de Wittgenstein et Carnap et l'anti-conventionnalisme de Peacocke selon lequel les sens des constantes logiques reposent sur des conceptions implicites, je montre que les deux thèses sont également critiquables. La première ne résiste pas à l'incohérence du connecteur « tonk », (...)
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