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  1. Horacio Arló Costa & Jeffrey Helzner (2012). More Foundations of the Decision Sciences: Introduction. Synthese 187 (1):1-10.
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  2. Horacio Arlo Costa & Jeffrey Helzner, Iterated Random Selection as Intermediate Between Risk and Uncertainty. ISIPTA'09 ELECTRONIC PROCEEDINGS.
  3. Horacio Arlo Costa (2006). Decision-Theoretic Contraction and Sequential Change. In Erik J. Olsson (ed.), Knowledge and Inquiry: Essays on the Pragmatism of Isaac Levi. Cambridge University Press.
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  4. Horacio Arló Costa (2006). Rationality and Value: The Epistemological Role of Indeterminate and Agent-Dependent Values. Philosophical Studies 128 (1):7 - 48.
    An important trend in contemporary epistemology centers on elaborating an old idea of pragmatist pedigree: theory selection (and in general the process of changing view and fixing beliefs) presupposes epistemic values. This article focuses on analyzing the case where epistemic values are indeterminate or when the sources of valuation are multiple (epistemic values like coherence and simplicity need not order options in compatible ways). According to the theory that thus arises epistemic alternatives need not be fully ordered by an underlying (...)
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  5. Horacio Arló Costa (2005). Non-Adjunctive Inference and Classical Modalities. Journal of Philosophical Logic 34 (5/6):581 - 605.
    The article focuses on representing different forms of non-adjunctive inference as sub-Kripkean systems of classical modal logic, where the inference from □A and □B to □A ∧ B fails. In particular we prove a completeness result showing that the modal system that Schotch and Jennings derive from a form of non-adjunctive inference in (Schotch and Jennings, 1980) is a classical system strictly stronger than EMN and weaker than K (following the notation for classical modalities presented in Chellas, 1980). The unified (...)
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  6. Horacio Arló Costa & Rohit Parikh (2005). Conditional Probability and Defeasible Inference. Journal of Philosophical Logic 34 (1):97 - 119.
    We offer a probabilistic model of rational consequence relations (Lehmann and Magidor, 1990) by appealing to the extension of the classical Ramsey-Adams test proposed by Vann McGee in (McGee, 1994). Previous and influential models of nonmonotonic consequence relations have been produced in terms of the dynamics of expectations (Gärdenfors and Makinson, 1994; Gärdenfors, 1993).'Expectation' is a term of art in these models, which should not be confused with the notion of expected utility. The expectations of an agent are some form (...)
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  7. Horacio Arlo Costa (2003). Review of David Papineau, The Roots of Reason: Philosophical Essays on Rationality, Evolution, and Probability. [REVIEW] Notre Dame Philosophical Reviews 2003 (12).
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  8. Horacio Arló Costa (2002). First Order Extensions of Classical Systems of Modal Logic; the Role of the Barcan Schemas. Studia Logica 71 (1):87-118.
    The paper studies first order extensions of classical systems of modal logic (see (Chellas, 1980, part III)). We focus on the role of the Barcan formulas. It is shown that these formulas correspond to fundamental properties of neighborhood frames. The results have interesting applications in epistemic logic. In particular we suggest that the proposed models can be used in order to study monadic operators of probability (Kyburg, 1990) and likelihood (Halpern-Rabin, 1987).
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  9. Horacio Arló Costa (2001). Hypothetical Revision and Matter-of-Fact Supposition. Journal of Applied Non-Classical Logics 11 (1-2):203-229.
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  10. Horacio Arló Costa & Isaac Levi (1996). Two Notions of Epistemic Validity. Synthese 109 (2):217 - 262.
    How to accept a conditional? F. P. Ramsey proposed the following test in (Ramsey 1990).(RT) If A, then B must be accepted with respect to the current epistemic state iff the minimal hypothetical change of it needed to accept A also requires accepting B.
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  11. Horacio Arló Costa & Isaac Levi (1996). Two Notions of Epistemic Validity-Epistemic Models for Ramsey's Conditionals. Synthese 109 (2):217-262.
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