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  1. Empirinis kvantifikuotų neapibrėžtų sakinių semantikos palyginimas.Alexandre Cremers & Julija Kalvelyte - forthcoming - Problemos:58-77.
    Nagrinėjame neapibrėžtų kvantifikuotų sakinių kompozicinę semantiką, daugiausia dėmesio skirdami tokiems sakiniams kaip „Visi studentai aukšti“, kuriuose apibrėžtas kvantorius kvantifikuoja neapibrėžtą predikatą. Nors natūraliojoje kalboje neapibrėžtumas jau yra plačiai tyrinėtas, įskaitant ir neapibrėžtų būdvardžių semantiką, lig šiol mažai dėmesio skirta neapibrėžtumo sąveikai su sudėtiniais sakiniais. Pristatome eksperimentą, kurio metu surinkome duomenis, kaip naivūs kalbėtojai interpretuoja tokius sakinius. Surinkę jų sprendimus apie neapibrėžto predikato taikytinumą kiekvienam ribotinio sakinio individui, lyginame, kaip trys žinomos neraiškiosios logikos – Gödelio, produkto ir Łukasiewicziaus – prognozuoja kvantifikuotų (...)
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  • Acceptable Contradictions: Pragmatics or Semantics? A Reply to Cobreros et al. [REVIEW]Sam Alxatib, Peter Pagin & Uli Sauerland - 2013 - Journal of Philosophical Logic 42 (4):619-634.
    Naive speakers find some logical contradictions acceptable, specifically borderline contradictions involving vague predicates such as Joe is and isn’t tall. In a recent paper, Cobreros et al. (J Philos Logic, 2012) suggest a pragmatic account of the acceptability of borderline contradictions. We show, however, that the pragmatic account predicts the wrong truth conditions for some examples with disjunction. As a remedy, we propose a semantic analysis instead. The analysis is close to a variant of fuzzy logic, but conjunction and disjunction (...)
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  • The Psychology of Vagueness: Borderline Cases and Contradictions.Sam Alxatib & Francis Jeffry Pelletier - 2011 - Mind and Language 26 (3):287-326.
    In an interesting experimental study, Bonini et al. (1999) present partial support for truth-gap theories of vagueness. We say this despite their claim to find theoretical and empirical reasons to dismiss gap theories and despite the fact that they favor an alternative, epistemic account, which they call ‘vagueness as ignorance’. We present yet more experimental evidence that supports gap theories, and argue for a semantic/pragmatic alternative that unifies the gappy supervaluationary approach together with its glutty relative, the subvaluationary approach.
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  • Vagueness, Logic and Use: Four Experimental Studies on Vagueness.Phil Serchuk, Ian Hargreaves & Richard Zach - 2011 - Mind and Language 26 (5):540-573.
    Although arguments for and against competing theories of vagueness often appeal to claims about the use of vague predicates by ordinary speakers, such claims are rarely tested. An exception is Bonini et al. (1999), who report empirical results on the use of vague predicates by Italian speakers, and take the results to count in favor of epistemicism. Yet several methodological difficulties mar their experiments; we outline these problems and devise revised experiments that do not show the same results. We then (...)
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  • (1 other version)Vagueness.Achille C. Varzi - 2003 - In L. Nadel (ed.), Encyclopedia of Cognitive Science. Nature Publishing Group. pp. 459–464.
    This is an encyclopedia entry on vagueness, focusing mainly on the opposition between re re and de dicta (linguistic or cognitive) accounts.
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  • justifying what ? - two basic types of knowledge claims revisited.Friedrich Wilhelm Grafe - 2023 - Archive.Org.
    ”It is often assumed that knowledge claims must be justified. But what kind of justification is required for knowledge ? . . . ” (*) -/- presupposition: the kind of epistemic justification depends on the type of the knowledge claim and its respective knowledge claim tradeoff ’vague vs. precise’. -/- procedere: in two - almost purely logical - case studies I account for this tradeoff and question in each case what (if any) were its general outcome wrt justification -/- first (...)
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  • The Fourfold Route to Empirical Enlightenment: Experimental Philosophy’s Adolescence and the Changing Body of Work.Robert Barnard, Joseph Ulatowski & Jonathan M. Weinberg - 2021 - Filozofia Nauki 29 (2):77-113.
    The time has come to consider whether experimental philosophy’s (“x-phi”) early arguments, debates, and conceptual frameworks, that may have worn well in its early days, fit with the diverse range of projects undertaken by experimental philosophers. Our aim is to propose a novel taxonomy for x-phi that identifies four paths from empirical findings to philosophical consequences, which we call the “fourfold route.” We show how this taxonomy can be fruitfully applied even at what one might have taken to be the (...)
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  • Tolerance effect in categorisation with vague predicates.Minyao Huang - 2013 - Pragmatics and Cognition 21 (2):340-358.
    Vagueness is understood as the problem of associating imprecise application criteria with ordinary predicates such as ‘bald’ or ‘blue’. It is often construed as due to one’s tolerance to a minute difference in forming a verdict on the application of a vague predicate. This paper reports an experiment conducted to test the effect of tolerance, using as paradigm categorisation tasks performed with respect to transitional series, e.g., a series of tomatoes from red to orange. The findings suggest a negative effect (...)
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  • Vagueness and Order Effects in Color Categorization.Paul Egré, Vincent de Gardelle & David Ripley - 2013 - Journal of Logic, Language and Information 22 (4):391-420.
    This paper proposes an experimental investigation of the use of vague predicates in dynamic sorites. We present the results of two studies in which subjects had to categorize colored squares at the borderline between two color categories (Green vs. Blue, Yellow vs. Orange). Our main aim was to probe for hysteresis in the ordered transitions between the respective colors, namely for the longer persistence of the initial category. Our main finding is a reverse phenomenon of enhanced contrast (i.e. negative hysteresis), (...)
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  • Typicality, Graded Membership, and Vagueness.James A. Hampton - 2007 - Cognitive Science 31 (3):355-384.
    This paper addresses theoretical problems arising from the vagueness of language terms, and intuitions of the vagueness of the concepts to which they refer. It is argued that the central intuitions of prototype theory are sufficient to account for both typicality phenomena and psychological intuitions about degrees of membership in vaguely defined classes. The first section explains the importance of the relation between degrees of membership and typicality (or goodness of example) in conceptual categorization. The second and third section address (...)
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  • Vagueness in Language: The Case Against Fuzzy Logic Revisited.Uli Sauerland - manuscript
    Kamp and Fine presented an influential argument against the use of fuzzy logic for linguistic semantics in 1975. However, the argument assumes that contradictions of the form "A and not A" have semantic value zero. The argument has been recently criticized because sentences of this form are actually not perceived as contradictory by naive speakers. I present new experimental evidence arguing that fuzzy logic still isn't useful for linguistic semantics even if we take such naive speaker judgements at face value. (...)
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  • Contradictions at the borders.David Ripley - 2011 - In Rick Nouwen, Robert van Rooij, Uli Sauerland & Hans-Christian Schmitz (eds.), Vagueness in Communication. Springer. pp. 169--188.
    The purpose of this essay is to shed some light on a certain type of sentence, which I call a borderline contradiction. A borderline contradiction is a sentence of the form F a ∧ ¬F a, for some vague predicate F and some borderline case a of F , or a sentence equivalent to such a sentence. For example, if Jackie is a borderline case of ‘rich’, then ‘Jackie is rich and Jackie isn’t rich’ is a borderline contradiction. Many theories (...)
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  • Castles Built on Clouds: Vague Identity and Vague Objects.Benjamin L. Curtis & Harold W. Noonan - 2014 - In Ken Akiba & Ali Abasnezhad (eds.), Vague Objects and Vague Identity: New Essays on Ontic Vagueness. Dordrecht, Netherland: Springer. pp. 305-326.
    Can identity itself be vague? Can there be vague objects? Does a positive answer to either question entail a positive answer to the other? In this paper we answer these questions as follows: No, No, and Yes. First, we discuss Evans’s famous 1978 argument and argue that the main lesson that it imparts is that identity itself cannot be vague. We defend the argument from objections and endorse this conclusion. We acknowledge, however, that the argument does not by itself establish (...)
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  • A Quantum Probability Perspective on Borderline Vagueness.Reinhard Blutner, Emmanuel M. Pothos & Peter Bruza - 2013 - Topics in Cognitive Science 5 (4):711-736.
    The term “vagueness” describes a property of natural concepts, which normally have fuzzy boundaries, admit borderline cases, and are susceptible to Zeno's sorites paradox. We will discuss the psychology of vagueness, especially experiments investigating the judgment of borderline cases and contradictions. In the theoretical part, we will propose a probabilistic model that describes the quantitative characteristics of the experimental finding and extends Alxatib's and Pelletier's () theoretical analysis. The model is based on a Hopfield network for predicting truth values. Powerful (...)
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  • A Unification of Two Approaches to Vagueness: The Boolean Many-Valued Approach and the Modal-Precisificational Approach.Ken Akiba - 2017 - Journal of Philosophical Logic 46 (4):419-441.
    The Boolean many-valued approach to vagueness is similar to the infinite-valued approach embraced by fuzzy logic in the respect in which both approaches seek to solve the problems of vagueness by assigning to the relevant sentences many values between falsity and truth, but while the fuzzy-logic approach postulates linearly-ordered values between 0 and 1, the Boolean approach assigns to sentences values in a many-element complete Boolean algebra. On the modal-precisificational approach represented by Kit Fine, if a sentence is indeterminate in (...)
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  • Florovsky’s logical relativism: a philosophical and theological analysis.Harry James Moore - forthcoming - Studies in East European Thought:1-17.
    Georges Florovsky’s essay ‘On the Grounding of Logical Relativism’ has attracted attention from various theologians and students of Russian thought but has until now avoided a serious philosophical analysis and critique. The complex but thought-provoking essay presents Florovsky’s so-called logical relativism, a position which he seemed to maintain for the rest of his career. This paper will show that by conflating ‘scientific’ with ‘alethic’ relativism, Florovsky exposed himself to detrimental philosophical and theological critique. After some methodological remarks, the first part (...)
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  • Voting and vagueness.James Kennedy Chase - 2016 - Synthese 193 (8):2453–2468.
    How to handle vagueness? One way is to introduce the machinery of acceptable sharpenings, and reinterpret truth as truth-in-all-sharpenings or truth-in-some-sharpenings. A major selling point has been the conservativism of the resulting systems with respect to classical theoremhood and inference. Supervaluationism and subvaluationism possess interesting formal symmetries, a fact that has been used to argue for the subvaluationist approach. However, the philosophical motivation behind each is a different matter. Subvaluationism comes with a standard story that is difficult to sign up (...)
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  • Contradiction.Laurence R. Horn - 2008 - Stanford Encyclopedia of Philosophy.
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  • Generalizing Prototype Theory: A Formal Quantum Framework.Diederik Aerts, Jan Broekaert, Liane Gabora & Sandro Sozzo - 2016 - Frontiers in Psychology 7.
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  • Healthcare Rationing Cutoffs and Sorites Indeterminacy.Philip M. Rosoff - 2019 - Journal of Medicine and Philosophy 44 (4):479-506.
    Rationing is an unavoidable mechanism for reining in healthcare costs. It entails establishing cutoff points that distinguish between what is and is not offered or available to patients. When the resource to be distributed is defined by vague and indeterminate terms such as “beneficial,” “effective,” or even “futile,” the ability to draw meaningful boundary lines that are both ethically and medically sound is problematic. In this article, I draw a parallel between the challenges posed by this problem and the ancient (...)
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  • Undead argument: the truth-functionality objection to fuzzy theories of vagueness.Nicholas J. J. Smith - 2017 - Synthese 194 (10):3761–3787.
    From Fine and Kamp in the 70’s—through Osherson and Smith in the 80’s, Williamson, Kamp and Partee in the 90’s and Keefe in the 00’s—up to Sauerland in the present decade, the objection continues to be run that fuzzy logic based theories of vagueness are incompatible with ordinary usage of compound propositions in the presence of borderline cases. These arguments against fuzzy theories have been rebutted several times but evidently not put to rest. I attempt to do so in this (...)
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  • Prospects for Experimental Philosophical Logic.Jeremiah Joven Joaquin - 2019 - Organon F: Medzinárodný Časopis Pre Analytickú Filozofiu 26 (2):265–286.
    This paper focuses on two interrelated issues about the prospects for research projects in experimental philosophical logic. The first issue is about the role that logic plays in such projects; the second involves the role that experimental results from the cognitive sciences play in them. I argue that some notion of logic plays a crucial role in these research projects, and, in turn, the results of these projects might inform substantive debates in the philosophy of logic.
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  • Typicality and Graded Membership in Dimensional Adjectives.Steven Verheyen & Paul Égré - 2018 - Cognitive Science 42 (7):2250-2286.
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  • Quantum structure of negation and conjunction in human thought.Diederik Aerts, Sandro Sozzo & Tomas Veloz - 2015 - Frontiers in Psychology 6.
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