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Paolo Maffezioli
University of Barcelona
  1.  17
    Intuitionistic Mereology.Paolo Maffezioli & Achille C. Varzi - 2018 - Synthese:1-26.
    Two mereological theories are presented based on a primitive apartness relation along with binary relations of mereological excess and weak excess, respectively. It is shown that both theories are acceptable from the standpoint of constructive reasoning while remaining faithful to the spirit of classical mereology. The two theories are then compared and assessed with regard to their extensional import.
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  2. The Church–Fitch Knowability Paradox in the Light of Structural Proof Theory.Paolo Maffezioli, Alberto Naibo & Sara Negri - 2013 - Synthese 190 (14):2677-2716.
    Anti-realist epistemic conceptions of truth imply what is called the knowability principle: All truths are possibly known. The principle can be formalized in a bimodal propositional logic, with an alethic modality ${\diamondsuit}$ and an epistemic modality ${\mathcal{K}}$, by the axiom scheme ${A \supset \diamondsuit \mathcal{K} A}$. The use of classical logic and minimal assumptions about the two modalities lead to the paradoxical conclusion that all truths are known, ${A \supset \mathcal{K} A}$. A Gentzen-style reconstruction of the Church–Fitch paradox is presented (...)
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  3.  35
    Modular Sequent Calculi for Classical Modal Logics.David R. Gilbert & Paolo Maffezioli - 2015 - Studia Logica 103 (1):175-217.
    This paper develops sequent calculi for several classical modal logics. Utilizing a polymodal translation of the standard modal language, we are able to establish a base system for the minimal classical modal logic E from which we generate extensions in a modular manner. Our systems admit contraction and cut admissibility, and allow a systematic proof-search procedure of formal derivations.
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  4.  33
    Proof Theory of Epistemic Logic of Programs.Paolo Maffezioli & Alberto Naibo - 2014 - Logic and Logical Philosophy 23 (3):301--328.
    A combination of epistemic logic and dynamic logic of programs is presented. Although rich enough to formalize some simple game-theoretic scenarios, its axiomatization is problematic as it leads to the paradoxical conclusion that agents are omniscient. A cut-free labelled Gentzen-style proof system is then introduced where knowledge and action, as well as their combinations, are formulated as rules of inference, rather than axioms. This provides a logical framework for reasoning about games in a modular and systematic way, and to give (...)
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  5. Micromotives and Macrobehavior - Thomas Schellling. [REVIEW]Paolo Maffezioli - 2009 - Humana Mente 3 (10).
     
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  6.  21
    Analytic Rules for Mereology.Paolo Maffezioli - 2016 - Studia Logica 104 (1):79-114.
    We present a sequent calculus for extensional mereology. It extends the classical first-order sequent calculus with identity by rules of inference corresponding to well-known mereological axioms. Structural rules, including cut, are admissible.
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  7.  1
    Sequents for Non-Wellfounded Mereology.Paolo Maffezioli - 2016 - Logic and Logical Philosophy 25 (3):351-369.
    The paper explores the proof theory of non-wellfounded mereology with binary fusions and provides a cut-free sequent calculus equivalent to the standard axiomatic system.
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