Possible Worlds and Ideology
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Modalism and Theoretical Virtues: Toward an Epistemology of Modality
This is a repository copy of Modalism and theoretical virtues: Toward an epistemology of modality. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/83720/ Version: Accepted Version Article: Bueno, O and Shalkowski, SA (2015) Modalism and theoretical virtues: Toward an epistemology of modality. Philosophical Studies, 172 (3). pp. 671-689. ISSN 0031-8116 https://doi.org/10.1007/s11098-014-0327-7 Reuse Items deposited in White Rose Research Online are protected by copyright, with all rights reserved unless indicated otherwise. They may be downloaded and/or printed for private study, or other acts as permitted by national copyright laws. The publisher or other rights holders may allow further reproduction and re-use of the full text version. This is indicated by the licence information on the White Rose Research Online record for the item. Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ Modalism and Theoretical Virtues: Toward an Epistemology of Modality1 Otávio Bueno Department of Philosophy University of Miami Coral Gables, FL 33124-4670, USA e-mail: [email protected] Scott A. Shalkowski Department of Philosophy University of Leeds Leeds LS2 9JT, UK e-mail: [email protected] ABSTRACT According to modalism, modality is primitive. In this paper, we examine the implications of this view for modal epistemology, and articulate a modalist account of modal knowledge. -
Situations and Individuals
Forthcoming with MIT Press Current Studies in Linguistics Summer 2005 Situations and Individuals Paul Elbourne To my father To the memory of my mother Preface This book deals with the semantics of the natural language expressions that have been taken to refer to individuals: pronouns, definite descriptions and proper names. It claims, contrary to previous theorizing, that they have a common syntax and semantics, roughly that which is currently associated by philosophers and linguists with definite descriptions as construed in the tradition of Frege. As well as advancing this proposal, I hope to achieve at least one other aim, that of urging linguists and philosophers dealing with pronoun interpretation, in particular donkey anaphora, to consider a wider range of theories at all times than is sometimes done at present. I am thinking particularly of the gulf that seems to have emerged between those who practice some version of dynamic semantics (including DRT) and those who eschew this approach and claim that the semantics of donkey pronouns crucially involves definite descriptions (if they consider donkey anaphora at all). In my opinion there is too little work directly comparing the claims of these two schools (for that is what they amount to) and testing them against the data in the way that any two rival theories might be tested. (Irene Heim’s 1990 article in Linguistics and Philosophy does this, and largely inspired my own project, but I know of no other attempts.) I have tried to remedy that in this book. I ultimately come down on the side of definite descriptions and against dynamic semantics; but that preference is really of secondary importance beside the attempt at a systematic comparative project. -
Arxiv:1908.09658V1 [Cs.MA] 26 Aug 2019 Sdfrtescn Ups.I General, in Purpose
Dynamic Term-Modal Logic for Epistemic Social Network Dynamics (Extended Version) Andrés Occhipinti Liberman1 and Rasmus K. Rendsvig2 1 DTU Compute [email protected] 2 Center for Information and Bubble Studies, University of Copenhagen [email protected] Abstract. Logics for social networks have been studied in recent liter- ature. This paper presents a framework based on dynamic term-modal logic (DTML), a quantified variant of dynamic epistemic logic (DEL). In contrast with DEL where it is commonly known to whom agent names refer, DTML can represent dynamics with uncertainty about agent iden- tity. We exemplify dynamics where such uncertainty and de re/de dicto distinctions are key to social network epistemics. Technically, we show that DTML semantics can represent a popular class of hybrid logic epis- temic social network models. We also show that DTML can encode pre- viously discussed dynamics for which finding a complete logic was left open. As complete reduction axioms systems exist for DTML, this yields a complete system for the dynamics in question. Keywords: social networks, term-modal logic, dynamic epistemic logic 1 Introduction Over recent years, several papers have been dedicated to logical studies of social networks, their epistemics and dynamics [2,10–14,18–22,24,25]. The purpose of this literature typically is to define and investigate some social dynamics with respect to e.g. long-term stabilization or other properties, or to introduce formal logics that capture some social dynamics, or both. This paper illustrates how dynamic term-modal logic (DTML, [1]) may be arXiv:1908.09658v1 [cs.MA] 26 Aug 2019 used for the second purpose. -
Concrete Possible Worlds (Final)
CONCRETE POSSIBLE WORLDS Phillip Bricker 1. INTRODUCTION. Open a book or article of contemporary analytic philosophy, and you are likely to find talk of possible worlds therein. This applies not only to analytic metaphysics, but to areas as diverse as philosophy of language, philosophy of science, epistemology, and ethics. Philosophers agree, for the most part, that possible worlds talk is extremely useful for explicating concepts and formulating theories. They disagree, however, over its proper interpretation. In this chapter, I discuss the view, championed by David Lewis, that philosophers’ talk of possible worlds is the literal truth.1 There exists a plurality of worlds. One of these is our world, the actual world, the physical universe that contains us and all our surroundings. The others are merely possible worlds containing merely possible beings, such as flying pigs and talking donkeys. But the other worlds are no less real or concrete for being merely possible. Fantastic? Yes! What could motivate a philosopher to believe such a tale? I start, as is customary, with modality.2 Truths about the world divide into two sorts: categorical and modal. Categorical truths describe how things are, what is actually the case. Modal truths describe how things could or must be, what is possibly or 1 The fullest statement of Lewis’s theory of possible worlds is contained in his magnum opus, Lewis (1986), On the Plurality of Worlds. Lewis’s view is sometimes called “modal realism.” 2 Historically, it was the attempt to provide semantics for modal logic that catapulted possible worlds to the forefront of analytic philosophy. -
Philosophical Reflections on Modern Quantum Gravity Research
Stringed along or caught in a loop? Stringed along or caught in a loop? Philosophical reflections on modern quantum gravity research Keizo Matsubara Dissertation presented at Uppsala University to be publicly examined in Geijersalen, Building 6, (Eng 6-1023), English Park Campus, Thunbergsvägen 3P, Uppsala, Friday, January 18, 2013 at 10:15 for the degree of Doctor of Philosophy. The examination will be conducted in English. Abstract Matsubara, K. 2013. Stringed along or caught in a loop?: Philosophical reflections on modern quantum gravity research. Filosofiska Institutionen. 139 pp. Uppsala. ISBN 978-91-506-2324-6. A number of philosophical questions, all connected to modern research in quantum gravity, are discussed in this dissertation. The goal of research in quantum gravity is to find a quantum theory for gravitation; the ot- her fundamental forces are already understood in terms of quantum physics. Quantum gravity is studied within a number of different research programmes. The most popular are string theory and loop quantum gravity; besides these a number of other approaches are pursued. Due to the lack of empirical support, it is relevant to assess the scientific status of this rese- arch. This is done from four different points of view, namely the ones held by: logical positi- vists, Popper, Kuhn and Lakatos. It is then argued that research in quantum gravity may be considered scientific, conditional on scientists being open with the tentative and speculative nature of their pursuits. Given the lack of empirical progress, in all approaches to quantum gravity, a pluralistic strategy is advised. In string theory there are different theoretical formulations, or dualities, which are physi- cally equivalent. -
Analyticity, Necessity and Belief Aspects of Two-Dimensional Semantics
!"# #$%"" &'( ( )#"% * +, %- ( * %. ( %/* %0 * ( +, %. % +, % %0 ( 1 2 % ( %/ %+ ( ( %/ ( %/ ( ( 1 ( ( ( % "# 344%%4 253333 #6#787 /0.' 9'# 86' 8" /0.' 9'# 86' (#"8'# Analyticity, Necessity and Belief Aspects of two-dimensional semantics Eric Johannesson c Eric Johannesson, Stockholm 2017 ISBN print 978-91-7649-776-0 ISBN PDF 978-91-7649-777-7 Printed by Universitetsservice US-AB, Stockholm 2017 Distributor: Department of Philosophy, Stockholm University Cover photo: the water at Petite Terre, Guadeloupe 2016 Contents Acknowledgments v 1 Introduction 1 2 Modal logic 7 2.1Introduction.......................... 7 2.2Basicmodallogic....................... 13 2.3Non-denotingterms..................... 21 2.4Chaptersummary...................... 23 3 Two-dimensionalism 25 3.1Introduction.......................... 25 3.2Basictemporallogic..................... 27 3.3 Adding the now operator.................. 29 3.4Addingtheactualityoperator................ 32 3.5 Descriptivism ......................... 34 3.6Theanalytic/syntheticdistinction............. 40 3.7 Descriptivist 2D-semantics .................. 42 3.8 Causal descriptivism ..................... 49 3.9Meta-semantictwo-dimensionalism............. 50 3.10Epistemictwo-dimensionalism................ 54 -
Peircean Modal Realism?”
Nordic NSP Studies in Pragmatism Helsinki | 2010 Sami Pihlstr¨om “Peircean Modal Realism?” In: Bergman, M., Paavola, S., Pietarinen, A.-V., & Rydenfelt, H. (Eds.) (2010). Ideas in Action: Proceedings of the Applying Peirce Conference (pp. 48–61). Nordic Studies in Pragmatism 1. Helsinki: Nordic Pragmatism Network. ISSN-L - ISSN - ISBN ---- Copyright c 2010 The Authors and the Nordic Pragmatism Network. This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. CC BY NC For more information, see http://creativecommons.org/licenses/by-nc/./ Nordic Pragmatism Network, NPN Helsinki 2010 www.nordprag.org Peircean Modal Realism? Sami Pihlstr¨om University of Helsinki 1. Introduction: the metaphysically realist assumptions of contem- porary modal realism1 The purpose of this paper is to critically compare Charles Peirce’s meta- physics of the modalities – or a “Peircean” approach to this metaphysical is- sue derived from his defense of scholastic realism – to the modal realist views defended by important twentieth century and contemporary philosophers. In this introductory section, I note that the contemporary discourse on modality is firmly rooted in metaphysical realism. In section 2, I suggest that the Peircean approach is closer to Kantian transcendental metaphysics. The contrast between metaphysical realism – or what Kant called “tran- scendental realism” – and the properly transcendental metaphysics in my view inherited by pragmatism turns out to be important, both generally and in the case of modality. Section 3 examines the possibility of inter- preting Peirce’s scholastic realism (a key doctrine in his modal theory) as 1 In addition to the Applying Peirce conference (Helsinki, June 2007), parts of this material were presented at the conference on Peirce’s normative thought in Opole, Poland (also June 2007). -
Modal Empiricism and Knowledge of De Re Possibilities: a Critique of Roca-Royes’ Account
Organon F 22 (4) 2015: 488-498 Modal Empiricism and Knowledge of De Re Possibilities: A Critique of Roca-Royes’ Account DUŠKO PRELEVIĆ Faculty of Philosophy. University of Belgrade Čika Ljubina 18-20. 11000 Belgrade. Serbia [email protected] RECEIVED: 30-04-2015 ACCEPTED: 11-08-2015 ABSTRACT: Accounting for our knowledge of de re modalities is probably the main rea- son why the proponents of modal empiricism think that their view should be preferred to modal rationalism. In this paper, I address Sonia Roca-Royes’ account, which is tak- en to be a representative modal empiricist view, in order to show that modal empiricism faces serious problems even in explaining our knowledge of possibility de re, something which seems to be the easiest thing to explain on this view. I argue that Roca-Royes’ account does not prove what she claims it does, that it can hardly be articulated in a non-redundant way, and that her account of our knowledge of possibility de re can hardly be reconciled with the essentiality of origin principle, to which modal empiricists sometimes appeal while criticizing the modal rationalist account. KEYWORDS: De re modal knowledge – modal empiricism – modal epistemology – modal rationalism. 1. Modal rationalism and our knowledge of modality de re Modal epistemology examines possibilities and boundaries of our modal knowledge. One of the most intriguing questions in this philosophical dis- cipline is related to the knowledge of unrealized possibilities, that is, the knowledge that something is possible even if it is not realized in the actual world (or at least we do not know whether it is realized or not; see Van In- © 2015 The Author. -
Historical Parallels Between, and Modal Realism Underlying Einstein and Everett Relativities
Historical Parallels between, and Modal Realism underlying Einstein and Everett Relativities Sascha Vongehr National Laboratory of Solid-State Microstructures, Nanjing University, Nanjing 210093, P. R. China A century ago, “ past ” and “ future ”, previously strictly apart, mixed up and merged. Temporal terminology improved. Today, not actualized quantum states, that is merely “ possible ” alternatives, objectively “exist ” (are real) when they interfere. Again, two previously strictly immiscible realms mix. Now, modal terminology is insufficient. Both times, extreme reactions reach from rejection of the empirical science to mystic holism. This paper shows how progress started with the relativization of previously absolute terms, first through Einstein’s relativity and now through Everett’s relative state description, which is a modal realism. The historical parallels suggest mere relativization is insufficient. A deformation of domains occurs: The determined past and the dependent future were restricted to smaller regions of space-time. This ‘light cone description’ is superior to hyperspace foliations and already entails the modal realism of quantum mechanics. Moreover, an entirely new region, namely the ‘absolute elsewhere’ was identified. The historical precedent suggests that modal terminology may need a similar extension. Discussing the modal realistic connection underlying both relativities, Popper’s proof of future indeterminism is turned to shatter the past already into many worlds/minds, thus Everett relativity is merely the -
Towards a New Theory of Modal Fictionalism
Dombrovszki, A.: Towards a New Theory of Modal Fictionalism. In: Ostium, roč. 13, 2017, č. 4. Abstract: In our everyday discourse, most of us use modal statements to express possibility, necessity, or contingency. Logicians, linguists, and philosophers of language tend to use the possible world discourse to analyse the semantics of this kind of sentences. There is a disadvantage of this method: in the usual Quinean meta-ontology it commits the users to the existence of possible worlds. Even though there are many theories on metaphysics of these possible worlds, I will focus on the fictionalist approach, which aims to suspend the undesired ontological commitment. Therefore it is an anti-realist theory. The fictionalist strategy is based on the idea that according to our common- sense ontology, fictions and fictional entities do not exist, and one can treat the possible world discourse as a fiction, and the possible worlds as fictional entities. However, in the last two decades, realist theories about fictions and fictional entities have arisen, especially the abstract artefact theory. In this paper I try to revise the fictionalist approach to modality by keeping the main idea that possible worlds are fictional entities, while accepting that fictional entities are abstract artefacts. The result is a new realist theory of modal fictionalism. Keywords: analytic philosophy, metaphysics, philosophy of language, fictionalism, modality, possible worlds The aim of this paper is to provide a revised version of the so-called fictionalist approach to modality.[1] Proponents of this view hold that realist theories about possible worlds, and therefore the whole possible world discourse is just a useful fiction, and – at least I suppose that – possible worlds are fictional entities. -
Zsófia Zvolenszky
I am delighted if you decide to quote this paper—please send me an email if you do. Comments are welcome. Yours, ZZs. NAMING WITH NECESSITY Zsófia Zvolenszky Department of Logic, Institute of Philosophy, Eötvös University (ELTE), Budapest [email protected] August 15, 2007 I. INTRODUCTION Despite all the attention philosophers have been paying to Naming and Necessity , they have not realized just how apt the title is: naming and necessity are intimately connected, even more intimately then Saul Kripke has led us to believe. The conception of necessity clarified by Kripke—metaphysical or counterfactual necessity—helps us understand what our ordinary practice of using proper names is about; and proper-name usage in turn helps us understand what counterfactual situations (possible worlds) are about. My aim is to propose yet another picture: (i) inherent in proper-name usage is the expectation that names refer to modally robust individuals :1 individuals that can sustain modal predications like ‘is necessarily human’, or ‘might have discovered Goldbach’s conjecture’; (ii) these modally robust individuals are the fundamental building blocks on the basis of which possible worlds should be conceived in a modal semantics intended to mirror the conceptual apparatus behind ordinary modal talk. In Part II, I describe (i) and (ii), what I call the individual-driven picture. In Part III, I relate this picture to others. The pre-Kripkean pictures of individuals and modality were markedly different. First, there was the conception of modality as logical or analytic necessity. Second, there was the conception of possible worlds needed for physical necessity, giving rise to issues about the transworld identification of individuals. -
Possible Worlds I: Modal Realism
Possible Worlds I: Modal Realism May 31, 2009 It is difficult to wander far in contemporary metaphysics without bumping into talk of possible worlds. And reference to possible worlds is not confined to metaphysics. It can be found in contemporary epistemology and ethics, and has even found its way into linguistics and decision theory. But what are those possible worlds, the entities to which theorists in these disciplines all appeal? Call any attempt to answer this question a theory of possible worlds. This paper sets out and evaluates a leading contemporary theory of possible worlds. The view’s principal proponent is David Lewis, and his label for it is ‘Modal Realism,’ which I will abbreviate ‘MR.’1 The view accepts the following sys- tematic correspondence between certain modal facts and facts regarding the existence of possible worlds: (SC) it is possible that φ iff there is a w such that w is a possible world and ‘φ’ is true at w. Lewis proposes MR, in part, as an attempt to specify the nature of the possible worlds whose existence is required by (SC)’s instances. This paper outlines Lewis’s view and discusses some main lines of objection. I will start by noting two competing ambitions for a theory of possible worlds (§1): that a theory of possible worlds be reductive and user-friendly. I will then outline Lewis’s version of MR (§2), and consider objections on the grounds that MR is not reductive (§3) and not user-friendly (§4). 1 Two Ambitions for a Theory of Possible Worlds There are at least two ambitions one might have for a theory of possible worlds.