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Tony Roy [13]Tony Daniel Roy [1]
  1. Tony Roy, Making Sense of Relevant Semantics (Draft).
    Involving as it does impossible worlds and the like, the Routley-Meyer worlds semantics for relevant logic has seemed unmotivated to some. I set a version of relevant semantics in a context to make sense of its different elements. Suppose a view which makes room for structured properties — or related entities which combine in arbitrary ways to form structured ones. Then it may seem natural to say entailment supervenes upon the structures, so that P entails Q just when part of (...)
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  2. Tony Roy, Truth as Correspondence.
    In this short paper, I discuss certain aspects of a “common-sense” approach to truth and falsity. It is my experience that many will object to what I have to say. As you read, if you have objections, try to formulate them carefully, and ask yourself whether I attempt a reply.
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  3. Tony Roy, Validity and Soundness.
    In this short paper, I introduce two central notions for argument evaluation. The presentation is completely informal. It is possible to develop formal methods for working with validity and souneness, but it is also possible to apply the informal notions directly to problems in philosophy and beyond. In either case, it is important to understand the basic notions, in order to understand what is accomplished in reasoning. Exercises are included, with answers to selected exercises at the end.
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  4. Matthew Davidson & Tony Roy (forthcoming). Continuum Companion to Metaphysics. Continuum.
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  5. Matthew Davidson & Tony Roy (forthcoming). New Directions in Metaphysics. In Continuum Companion to Metaphysics. Continuum.
    In this paper we set out a Quinean approach to metaphysics. We evaluate Eli Hirsch's and Amie Thomasson's deflationary metaphysics and set out our metametaphysical framework.
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  6. Tony Roy & Matthew Davidson (2012). 1 1 New Directions In. In Robert Barnard Neil Manson (ed.), Continuum Companion to Metaphysics. 268.
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  7. Greg Restall & Tony Roy (2009). On Permutation in Simplified Semantics. Journal of Philosophical Logic 38 (3):333 - 341.
    This note explains an error in Restall’s ‘Simplified Semantics for Relevant Logics (and some of their rivals)’ (Restall, J Philos Logic 22(5):481–511, 1993 ) concerning the modelling conditions for the axioms of assertion A → (( A → B ) → B ) (there called c 6) and permutation ( A → ( B → C )) → ( B → ( A → C )) (there called c 7). We show that the modelling conditions for assertion and permutation proposed (...)
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  8. Tony Roy (2006). Natural Derivations for Priest, An Introduction to Non-Classical Logic. Australasian Journal of Philosophy 4:47-192.
    This document collects natural derivation systems for logics described in Priest, An Introduction to Non-Classical Logic. It provides an alternative or supplement to the semantic tableaux of his text. Except that some chapters are collapsed, there are sections for each chapter in Priest, with an additional, final section on quantified modal logic. In each case, the language is briefly described and key semantic definitions stated, the derivation system is presented with a few examples given, and soundness and completeness are proved. (...)
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  9. Tony Roy (2006). Natural Derivations for Priest, Introduction to Non-Classical Logic. Australasian Journal of Logic 4:47-192.
    This document collects natural derivation systems for logics described in Priest, An Introduction to Non-Classical Logic. It provides an alternative or supplement to the semantic tableaux of his text. Except that some chapters are collapsed, there are sections for each chapter in Priest, with an additional, final section on quantified modal logic. In each case, the language is briefly described and key semantic definitions stated, the derivation system is presented with a few examples given, and soundness and completeness are proved. (...)
     
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  10. Tony Roy (2000). Things and de Re Modality. Noûs 34 (1):56–84.
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  11. Tony Roy (1995). In Defense of Linguistic Ersatzism. Philosophical Studies 80 (3):217 - 242.
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  12. Tony Roy (1993). Worlds and Modality. Philosophical Review 102 (3):335-361.
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