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  1. How vagueness could cut out at any order.Cian Dorr - 2015 - Review of Symbolic Logic 8 (1):1-10.
    Timothy Williamson has shown that the B axiom for 'definitely' (α → Δ¬Δ¬α) guarantees that if a sentence is second-order vague in a Kripke model, it is nth order vague for every n. More recently, Anna Mahtani has argued that Williamson's epistemicist theory of vagueness does not support the B axiom, and conjectured that if we consider models in which the “radius of accessibility” varies between different points, we will be able to find sentences that are nth-order vague but (n+1)th-order (...)
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  • A criterion of diachronic identity based on Locke's Principle.Rafael De Clercq - 2005 - Metaphysica 6 (1):23-38.
    The aim of this paper is to derive a perfectly general criterion of identity through time from Locke’s Principle, which says that two things of the same kind cannot occupy the same space at the same time. In this way, the paper pursues a suggestion made by Peter F. Strawson almost thirty years ago in an article called ‘Entity and Identity’. The reason why the potential of this suggestion has so far remained unrealized is twofold: firstly, the suggestion was never (...)
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  • A functionalist theory of properties.Ann Whittle - 2008 - Philosophy and Phenomenological Research 77 (1):59-82.
    I consider a grand, yet neglected proposal put forward by Shoemaker—a functionalist theory of all properties. I argue that two possible ways of developing this proposal meet with substantial objections. However, if we are prepared to endorse an ontology of tropes, one of these functionalist analyses can be developed into an original and informative theory of properties.
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  • (1 other version)Précis of vagueness and contradiction. [REVIEW]Roy Sorensen - 2005 - Philosophy and Phenomenological Research 71 (3):678–685.
    Rorty goes on to connect the sorites paradox to analytic philosophy’s long standing concern with the correspondence theory of truth. How do our words hook up with reality? Do our categories map pre-existing contours? The nominalist answers that “facts” are just projections of our forms of speech. Rorty characterizes epistemicism as a hyper-realist backlash. In addition to thinking that our scientific terminology cuts nature at the joint, the epistemicist asserts that even the vague vocabulary of common sense has sharp thresholds.
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  • Factive phenomenal characters.Benj Hellie - 2007 - Philosophical Perspectives 21 (1):259--306.
    This paper expands on the discussion in the first section of 'Beyond phenomenal naivete'. Let Phenomenal Naivete be understood as the doctrine that some phenomenal characters of veridical experiences are factive properties concerning the external world. Here I present in detail a phenomenological case for Phenomenal Naivete and an argument from hallucination against it. I believe that these arguments show the concept of phenomenal character to be defective, overdetermined by its metaphysical and epistemological commitments together with the world. This does (...)
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  • Indiscriminability and the sameness of appearance.Katalin Farkas - 2006 - Proceedings of the Aristotelian Society 106 (2):39-59.
    Abstract: How exactly should the relation between a veridical perception and a corresponding hallucination be understood? I argue that the epistemic notion of ‘indiscriminability’, understood as lacking evidence for the distinctness of things, is not suitable for defining this relation. Instead, we should say that a hallucination and a veridical perception involve the same phenomenal properties. This has further consequences for attempts to give necessary and sufficient conditions for the identity of phenomenal properties in terms of indiscriminability, and for considerations (...)
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  • Indiscriminable shades and demonstrative concepts.Philippe Chuard - 2007 - Australasian Journal of Philosophy 85 (2):277 – 306.
    Conceptualists have it that the representational content of perceptual experience is determined by the concepts a subject applies in having such an experience. Conceptualists like Bill Brewer [1999] and John McDowell [1994] have laid particular emphasis on demonstrative concepts in trying to account for the fact that subjects can perceive and discriminate very many specific shades of colour in experience. Against this, it has been objected that such demonstrative concepts have incoherent conditions of extension and/or of individuation, due to the (...)
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  • Explaining identity and distinctness.Erica Shumener - 2020 - Philosophical Studies 177 (7):2073-2096.
    This paper offers a metaphysical explanation of the identity and distinctness of concrete objects. It is tempting to try to distinguish concrete objects on the basis of their possessing different qualitative features, where qualitative features are ones that do not involve identity. Yet, this criterion for object identity faces counterexamples: distinct objects can share all of their qualitative features. This paper suggests that in order to distinguish concrete objects we need to look not only at which properties and relations objects (...)
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  • Colour Vision and Seeing Colours.Will Davies - 2017 - British Journal for the Philosophy of Science:axw026.
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  • The epistemology of modality and the problem of modal epistemic friction.Anand Jayprakash Vaidya & Michael Wallner - 2021 - Synthese 198 (Suppl 8):1909-1935.
    There are three theories in the epistemology of modality that have received sustained attention over the past 20 years: conceivability-theory, counterfactual-theory, and deduction-theory. In this paper we argue that all three face what we call the problem of modal epistemic friction. One consequence of the problem is that for any of the three accounts to yield modal knowledge, the account must provide an epistemology of essence. We discuss an attempt to fend off the problem within the context of the internalism (...)
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  • Transitivity of visual sameness.Błażej Skrzypulec - 2020 - Synthese 197 (6):2695-2719.
    The way in which vision represents objects as being the same despite movement and qualitative changes has been extensively investigated in contemporary psychology. However, the formal properties of the visual sameness relation are still unclear, for example, whether it is an identity-like, equivalence relation. The paper concerns one aspect of this problem: the transitivity of visual sameness. Results obtained by using different experimental paradigms are analysed, in particular studies using streaming/bouncing stimuli, multiple object tracking experiments and investigations concerning object-specific preview (...)
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  • Enciclopédia de Termos Lógico-Filosóficos.João Miguel Biscaia Branquinho, Desidério Murcho & Nelson Gonçalves Gomes (eds.) - 2006 - São Paulo, SP, Brasil: Martins Fontes.
    Esta enciclopédia abrange, de uma forma introdutória mas desejavelmente rigorosa, uma diversidade de conceitos, temas, problemas, argumentos e teorias localizados numa área relativamente recente de estudos, os quais tem sido habitual qualificar como «estudos lógico-filosóficos». De uma forma apropriadamente genérica, e apesar de o território teórico abrangido ser extenso e de contornos por vezes difusos, podemos dizer que na área se investiga um conjunto de questões fundamentais acerca da natureza da linguagem, da mente, da cognição e do raciocínio humanos, bem (...)
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  • Access, phenomenology and sorites.Miguel Ángel Sebastián - 2018 - Ratio 31 (3):285-293.
    The non-transitivity of the relation looks the same as has been used to argue that the relation has the same phenomenal character as is non-transitive—a result that jeopardizes certain theories of consciousness. In this paper, I argue against this conclusion while granting the premise by dissociating lookings and phenomenology; an idea that some might find counter-intuitive. However, such an intuition is left unsupported once phenomenology and cognitive access are distinguished from each other; a distinction that is conceptually and empirically grounded.
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  • (1 other version)Forms of Luminosity: Epistemic Modality and Hyperintensionality in Mathematics.David Elohim - 2017 - Dissertation, Arché, University of St Andrews
    This book concerns the foundations of epistemic modality and hyperintensionality and their applications to the philosophy of mathematics. David Elohim examines the nature of epistemic modality, when the modal operator is interpreted as concerning both apriority and conceivability, as well as states of knowledge and belief. The book demonstrates how epistemic modality and hyperintensionality relate to the computational theory of mind; metaphysical modality and hyperintensionality; the types of mathematical modality and hyperintensionality; to the epistemic status of large cardinal axioms, undecidable (...)
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  • (1 other version)Forms of Luminosity: Epistemic Modality and Hyperintensionality in Mathematics.David Elohim - 2017
    This book concerns the foundations of epistemic modality and hyperintensionality and their applications to the philosophy of mathematics. David Elohim examines the nature of epistemic modality, when the modal operator is interpreted as concerning both apriority and conceivability, as well as states of knowledge and belief. The book demonstrates how epistemic modality and hyperintensionality relate to the computational theory of mind; metaphysical modality and hyperintensionality; the types of mathematical modality and hyperintensionality; to the epistemic status of large cardinal axioms, undecidable (...)
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  • Contingent Existence and the Reduction of Modality to Essence.Trevor Teitel - 2019 - Mind 128 (509):39-68.
    This paper first argues that we can bring out a tension between the following three popular doctrines: (i) the canonical reduction of metaphysical modality to essence, due to Fine, (ii) contingentism, which says that possibly something could have failed to be something, and (iii) the doctrine that metaphysical modality obeys the modal logic S5. After presenting two such arguments (one from the theorems of S4 and another from the theorems of B), I turn to exploring various conclusions we might draw (...)
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  • Modal science.Timothy Williamson - 2016 - Canadian Journal of Philosophy 46 (4-5):453-492.
    This paper explains and defends the idea that metaphysical necessity is the strongest kind of objective necessity. Plausible closure conditions on the family of objective modalities are shown to entail that the logic of metaphysical necessity is S5. Evidence is provided that some objective modalities are studied in the natural sciences. In particular, the modal assumptions implicit in physical applications of dynamical systems theory are made explicit by using such systems to define models of a modal temporal logic. Those assumptions (...)
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  • The phenomenology of attitudes and the salience of rational role and determination.Fabian Dorsch - 2016 - Philosophical Explorations 19 (2):114-137.
    The recent debate on cognitive phenomenology has largely focused on phenomenal aspects connected to the content of thoughts. By contrasts, aspects pertaining to their attitude have often been neglected, despite the fact that they are distinctive of the mental kind of thought concerned and, moreover, also present in experiences and thus less contentious than purely cognitive aspects. My main goal is to identify two central and closely related aspects of attitude that are phenomenologically salient and shared by thoughts with experiences, (...)
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  • Supervaluationism and Its Logics.Achille C. Varzi - 2007 - Mind 116 (463):633-676.
    What sort of logic do we get if we adopt a supervaluational semantics for vagueness? As it turns out, the answer depends crucially on how the standard notion of validity as truth preservation is recasted. There are several ways of doing that within a supervaluational framework, the main alternative being between “global” construals (e.g., an argument is valid iff it preserves truth-under-all-precisifications) and “local” construals (an argument is valid iff, under all precisifications, it preserves truth). The former alternative is by (...)
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  • The sortal resemblance problem.Joongol Kim - 2014 - Canadian Journal of Philosophy 44 (3-4):407-424.
    Is it possible to characterize the sortal essence of Fs for a sortal concept F solely in terms of a criterion of identity C for F? That is, can the question ‘What sort of thing are Fs?’ be answered by saying that Fs are essentially those things whose identity can be assessed in terms of C? This paper presents a case study supporting a negative answer to these questions by critically examining the neo-Fregean suggestion that cardinal numbers can be fully (...)
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  • The Possibility of Unicorns and Modal Logic.Lee Walters - 2014 - Analytic Philosophy 55 (2):295-305.
    Michael Dummett argues, against Saul Kripke, that there could have been unicorns. He then claims that this possibility shows that the logic of metaphysical modality is not S5, and, in particular, that the B axiom is false. Dummett’s argument against B, however, is invalid. I show that although there are number of ways to repair Dummett’s argument against B, each requires a controversial metaphysical or semantic commitment, and that, regardless of this, the case against B is undermotivated. Dummett’s case is (...)
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  • The Unity of Hallucinations.Fabian Dorsch - 2010 - Phenomenology and the Cognitive Sciences 9 (2):171-191.
    My primary aim in this article is to provide a philosophical account of the unity of hallucinations, which can capture both perceptual hallucinations (which are subjectively indistinguishable from perceptions) and non-perceptual hallucinations (all others). Besides, I also mean to clarify further the division of labour and the nature of the collaboration between philosophy and the cognitive sciences. Assuming that the epistemic conception of hallucinations put forward by M. G. F. Martin and others is largely on the right track, I will (...)
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  • Either / or.Alex Byrne & Heather Logue - 2008 - In Adrian Haddock & Fiona Macpherson (eds.), Disjunctivism: perception, action, knowledge. New York: Oxford University Press. pp. 57-94.
    This essay surveys the varieties of disjunctivism about perceptual experience. Disjunctivism comes in two main flavours, metaphysical and epistemological.
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  • An externalist's guide to inner experience.Benj Hellie - 2010 - In Bence Nanay (ed.), Perceiving the world. New York: Oxford University Press. pp. 97–145.
    Let's be externalists about perceptual consciousness and think the form of veridical perceptual consciousness includes /seeing this or that mind-independent particular and its colors/. Let's also take internalism seriously, granting that spectral inversion and hallucination can be "phenomenally" the same as normal seeing. Then perceptual consciousness and phenomenality are different, and so we need to say how they are related. It's complicated!<br><br>Phenomenal sameness is (against all odds) /reflective indiscriminability/. I build a "displaced perception" account of reflection on which indiscriminability stems (...)
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  • A Response to Chisholm’s Paradox.Andrew Dennis Bassford - 2020 - Philosophical Studies 177 (4):1137-1155.
    Essentialists suppose that for every individual, if that individual exists at any possible world, then necessarily that individual exemplifies some non-trivial qualitative property essential to it, as such. Anti-essentialists deny this. One important argument leveled by some anti-essentialists against essentialism takes the form of a thought experiment, one originally introduced by Roderick Chisholm, sometimes referred to as Chisholm's Paradox (CP). In this essay, I defend essentialism against CP. I begin by presenting the argument and showing how it leads to a (...)
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  • Openness to the World:: an Enquiry into the Intentionality of Perception.Giananti Andrea & Soldati Gianfranco - 2015 - Dissertation, L’Université de Fribourg
    When we perceive we are under the impression of being directly aware of concrete, mindindependent objects. We also consider perception as a basic, reliable source for acquiring beliefs and an effective means for coping with the environment. In the philosophical literature, this direct and basic character of perception is sometimes captured by saying that perception is openness to the world. Articulating, refining and vindicating as far as possible this commonsensical view of perception as openness to the world is the main (...)
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  • Relationalism in the face of hallucinations.Locatelli Roberta - unknown
    Relationalism claims that the phenomenal character of perception is constituted by the obtaining of a non-representational psychological relation to mind-independent objects. Although relationalism provides what seems to be the most straightforward and intuitive account of how experience strikes us introspectively, it is very often believed that the argument from hallucination shows that the view is untenable. The aim of this thesis is to defend relationalism against the argument from hallucination. The argument claims that the phenomenal character of hallucination and perception (...)
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  • Margin for error and the transparency of knowledge.Jérôme Dokic & Paul Égré - 2009 - Synthese 166 (1):1-20.
    In chapter 5 of Knowledge and its Limits, T. Williamson formulates an argument against the principle (KK) of epistemic transparency, or luminosity of knowledge, namely “that if one knows something, then one knows that one knows it”. Williamson’s argument proceeds by reductio: from the description of a situation of approximate knowledge, he shows that a contradiction can be derived on the basis of principle (KK) and additional epistemic principles that he claims are better grounded. One of them is a reflective (...)
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  • Identity criteria and ground.Kit Fine - 2016 - Philosophical Studies 173 (1):1-19.
    I propose formulating identity criteria as generic statements of ground, thereby avoiding objections that have been made to the more usual formulations.
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  • Epistemological Disjunctivism and Introspective Indiscriminability.Chris Ranalli - 2019 - Philosophia 47 (1):183-205.
    According to Duncan Pritchard’s version of epistemological disjunctivism, in paradigm cases of perceptual knowledge, one’s knowledge that p is grounded in one’s seeing that p, and one can, by reflection alone, come to know that they see that p. In this paper, I argue that the epistemic conception of introspective indiscriminability is incompatible with epistemological disjunctivism, so understood. This has the consequence that theories of the nature of sensory experience which accept the epistemic conception of introspective indiscriminability—such as phenomenal character (...)
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  • Principles of composition and criteria of identity.Katherine Hawley - 2006 - Australasian Journal of Philosophy 84 (4):481 – 493.
    I argue that, despite van Inwagen’s pessimism about the task, it is worth looking for answers to his General Composition Question. Such answers or ‘principles of composition’ tell us about the relationship between an object and its parts. I compare principles of composition with criteria of identity, arguing that, just as different sorts of thing satisfy different criteria of identity, they may satisfy different principles of composition. Variety in criteria of identity is not taken to reflect ontological variety in the (...)
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  • Colour Vision and Seeing Colours.Will Davies - 2018 - British Journal for the Philosophy of Science 69 (3):657-690.
    Colour vision plays a foundational explanatory role in the philosophy of colour, and serves as perennial quarry in the wider philosophy of perception. I present two contributions to our understanding of this notion. The first is to develop a constitutive approach to characterizing colour vision. This approach seeks to comprehend the nature of colour vision qua psychological kind, as contrasted with traditional experiential approaches, which prioritize descriptions of our ordinary visual experience of colour. The second contribution is to argue that (...)
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  • (1 other version)The Many Facets of Identity Criteria.Pierdaniele Giaretta Massimiliano Carrara - 2004 - Dialectica 58 (2):221-232.
    The aim of this note is to discuss the general form and role of identity criteria. We have taken two readings into consideration which express two different functions of identity criteria. The first expresses the epistemic function whilst the second deals with the ontological function. We argue that there are several problems related to the specification of both these functions. As a consequence, we conclude that identity criteria are not necessary to provide ontological legitimacy.
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  • Noise and perceptual indiscriminability.Benj Hellie - 2005 - Mind 114 (455):481-508.
    Perception represents colours inexactly. This inexactness results from phenomenally manifest noise, and results in apparent violations of the transitivity of perceptual indiscriminability. Whether these violations are genuine depends on what is meant by 'transitivity of perceptual indiscriminability'.
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  • Invitation to Autoepistemology.Lloyd Humberstone - 2002 - Theoria 68 (1):13-51.
    The phrase ‘autoepistemic logic’ was introduced in Moore [1985] to refer to a study inspired in large part by criticisms in Stalnaker [1980] of a particular nonmonotonic logic proposed by McDermott and Doyle.1 Very informative discussions for those who have not encountered this area are provided by Moore [1988] and the wide-ranging survey article Konolige [1994], and the scant remarks in the present introductory section do not pretend to serve in place of those treatments as summaries of the field. A (...)
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  • Property Identity.Paul Audi - 2016 - Philosophy Compass 11 (12):829-840.
    The question of how properties are individuated is extremely important. Consider the following proposals. To be in pain is to be in a certain neurological state. To be red is to appear red to normal observers in standard conditions. To be obligatory is to maximize the good. Each makes a claim of property identity. Each is a substantive metaphysical thesis of wide interest. None can be studied with due scrutiny in the absence of a general account of property identity. Here, (...)
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  • (1 other version)Disjunctivism about visual experience.Scott Sturgeon - 2008 - In Adrian Haddock & Fiona Macpherson (eds.), Disjunctivism: perception, action, knowledge. New York: Oxford University Press. pp. 112--143.
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  • Modality as a Subject for Science.Timothy Williamson - 2017 - Res Philosophica 94 (3):415-436.
    Section 1 introduces the category of objective modality, closely related to linguists’ category of circumstantial or dynamic modals, and explains metaphysical modality as its maximal element. Section 2 discusses various kinds of skepticism about modality, as in Hume and recent authors, and argues that it is illmotivated to apply such skepticism to metaphysical modality but not to more restricted objective modalities, including nomic modality. Section 3 suggests that the role of counterfactual conditionals in applications of scientific theories involves an objective (...)
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  • Three Basic Ontological Relations Concerning The Physical Realm.David GrÜnberg - 2005 - Metaphysica 6 (1):85-109.
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