Believing in default rules: inclusive default reasoning.

This paper argues for the reasonableness of an inclusive conception of default reasoning. The inclusive conception allows untriggered default rules to influence beliefs: Since a default "from , infer " is a defeasible inference rule, it by default warrants a belief in the material implication , even...

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Publicado en:Synthese Vol. 205; no. 6; pp. 1 - 46
Autores principales: Andersen, Frederik J., Rendsvig, Rasmus K.
Formato: Artículo
Publicado: Springer Nature Jun2025
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Acceso en línea:Ver este registro en EBSCOhost
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        atl: Believing in default rules: inclusive default reasoning.
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        au:
          Andersen, Frederik J.
          Rendsvig, Rasmus K.
        affil:
          https://ror.org/035b05819 Section for Philosophy, University of Copenhagen, Karen Blixens Plads 8, DK-2300, Copenhagen S, Denmark
          https://ror.org/035b05819 CoInAct Research Group, University of Copenhagen, Øster Farimagsgade 2A, DK-1353, Copenhagen K, Denmark
          https://ror.org/00n92fc55 ML-Lab, Danish Business Authority, Langelinie Allé 17, 2100, Copenhagen Ø, Denmark
      su:
        Nonmonotonic logic
        Religious studies
        Default (Finance)
        Inference (Logic)
        Analogy
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          Nonmonotonic logic
          Religious studies
          Default (Finance)
          Inference (Logic)
          Analogy
      keyword:
        Default logic
        Default reasoning
        Non-monotonic reasoning
        Packard's lexicographic lifting rule
        Philosophy and Religious Studies Philosophy
        Prioritized default logic
        Rational beliefs
      ab: This paper argues for the reasonableness of an inclusive conception of default reasoning. The inclusive conception allows untriggered default rules to influence beliefs: Since a default "from , infer " is a defeasible inference rule, it by default warrants a belief in the material implication , even if is not believed. Such inferences are not allowed in standard default logic of the Reiter tradition, but are reasonable by analogy to the Deduction Theorem for classical logic. Our main contribution is a formal framework for inclusive default reasoning. The framework has a solid philosophical foundation, it draws conclusions non-trivially different from non-inclusive frameworks, and it exhibits a host of benchmark properties deemed desirable in the literature—e.g., that extensions always exist and are consistent.
      pubtype: Academic Journal
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    language: English
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