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On the dominant view of vagueness, if it isvague whether Harry is bald, then all the specific facts about the distribution of hair on Harry's head, together with all the facts about Harry's comparison class, together with all the facts about our community-wide use of the word ‘bald’, fail to settle whether Harry is bald. On the dominant view, if it isvague whether Harry is bald, then nothing settles whether Harry is bald—it is unsettled, not merely (...) epistemically, but metaphysically, whether Harry is bald. Call this view vagueness-as-indeterminacy. Vagueness-as-indeterminacy entails the following proposition: that clear vagueness as to whether Harry is bald clearly does not entail that Harry is bald. I argue against this proposition, and thus against vagueness-as-indeterminacy. My argument consists of a defence of the following rival proposition: that it isvague whether clear vagueness as to whether Harry is bald entails that Harry is bald. The argument itself is short. Most of the paper is devoted to responding to various objections to the argument, as well as attempting to explain away the initial appeal of the proposition that clear vagueness as to whether Harry is bald clearly does not entail that Harry is bald. (shrink)

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Vague existence can seem like the worst kind of vagueness in the world, or seem to be an entirely unintelligible notion. This bad reputation is based upon the rumour that if there isvague existence then there are non-existent objects. But the rumour is false: the modest brand ofvague existence entailed by certain metaphysical theories of composition does not deserve its bad reputation.

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This paper introduces a novel theory of vagueness. Its main aim is to show how naïve judgments about tolerance and indeterminacy can be preserved while departing from classical logic only in ways which are independently motivated. -/- The theory makes use of a bilateral approach to acceptance and rejection. Combined with a standard account of validity, this approach gives rise to anentailment relation which is non-transitive. I argue that this is desirable: it is both pre-theoretically plausible and provides (...) a compelling solution to a number of longstanding puzzles. The theory aims to preserve the naïve picture of vagueness. It combines tools from expressivist and dynamic treatments of information in conversation to show how principles which are generally assumed to be in tension are compatible. The resulting logic departs from classical logic in precisely those places we should expect it to. -/- . (shrink)

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Vague existence can seem like the worst kind of vagueness in the world, or seem to be an entirely unintelligible notion. This bad reputation is based upon the rumour that if there isvague existence then there are non-existent objects. But the rumour is false: the modest brand ofvague existence entailed by certain metaphysical theories of composition does not deserve its bad reputation.

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Contextualism concerning vagueness (hereafter ‘CV’) is a popular response to the puzzle of vagueness.[1] The goal in this paper is to uncover in what ways vagueness may be a particular species of context-sensitivity. The most promising form of CV turns out to be a version of socalled ‘Non-Indexical Contextualism’.[2] In §2, we sketch a generic form of CV (hereafter ‘GCV’). In §3, we distinguish between Truth CV and Content CV. A non-indexical form of CV is a form of Truth CV, (...) while an indexical form of CV is a form of Content CV. In §4, we argue that the theory of vagueness given in Fara (2000) is crucially incomplete but is best seen as a non-indexical form of CV. In §5, we set forth four kinds of error-theory to which CV might be committed. It turns out that Non-Indexical CV is committed to a weaker, and more plausible, error-theory than Indexical CV. In §6, we address a challenge posed by Keefe (2007) to the effect that CV entails that any speech report of what has been said by a particularvague utterance, where the context of utterance and the reporting context are relevantly different, will almost always be inaccurate. While this challenge is prima facie effective against Indexical CV it proves to be less effective against Non-Indexical CV. In §7, we look at two tests for context-sensitivity and assess whether they can be employed against CV. These tests, if cogent, reveal that the only workable form of CV is Non-Indexical CV. (shrink)

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Degree theories of vagueness build on the observation thatvague predicates such as 'tall' and 'red' come in degrees. They employ an infinite-valued logic, where the truth values correspond to degrees of truth and are typically represented by the real numbers in the interval [0,1]. In this paper, the success with which the numerical assignments of such theories can capture the phenomenon of vagueness is assessed by drawing an analogy with the measurement of various physical quantities using real numbers. (...) I argue that degree theories of vagueness are undermined by the failure of the necessary connectedness principle. Moreover, the semantics for the connectives entail that there must be a uniquely correct numerical assignment for the sentences, and this is implausible. Different senses of 'coming in degrees' are then distinguished; I argue that a confusion between them could be the source of the degree theorist's error, and the distinction illuminates the problem cases described earlier in the paper. (shrink)

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Recently a lot has been written on the topic of value incomparability. While there is disagreement on how we are to understand incomparability, most seem to accept Ruth Chang's claim that all comparisons must proceed in some specific respect. Call this the Requirement for Specification. Interestingly, even though most seem to accept this requirement, next to nothing has been written on it. In this paper I focus on the requirement and discuss two different but related topics. First, an important observation (...) is made: as it turns out, the requirement plays an important explanatory role for the thesis that incomparability is to be understood in terms of vagueness. Second, I consider what is entailed by the Requirement for Specification. There is a general worry that the requirement entails that there is no such thing as goodness simpliciter. The line of thought is that if we always must specify in which way something is e.g., better than something else, then perhaps things cannot be better simpliciter. And if there is no such thing as betterness-simpliciter, then can there be such a thing as goodness simpliciter? Finally, I consider how an answer to this question affects the view that incomparability is vagueness. (shrink)

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It is commonly suggested that vagueness is a purely semantic phenomenon having no metaphysical or ontological implications, requiring no new ontological category for its explanation. It does not entail any revision of the metaphysical view that the world is precise or determinate contra advocates of avague or fuzzy ontology like Bertil Rolf and Michael Tye. The suggestion is often bolstered by arguments that purport to show that the world is completely describable in a precise language. The precision of (...) the world is then taken to follow from the availability of such a complete precise description thereof. In this sensevague language might be considered superficial. (shrink)

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A utility-based approach to the understanding ofvague predicates (VPs) is proposed. It is argued that assignment of truth values to propositions containing VPs entails unjustifiable assumptions of consensus; two models of VP semantics are criticized on this basis: (1) the super-truth theory of Kit Fine (1975), which requires an unlikely consensus on base points; (2) the fuzzy logic of Lotfi Zadeh (1975), on fuzzy truth values of sentences. Pragmatism is held to provide a key: successful behavior justifies a (...) person's knowledge of the content of a VP. Instead of attempting to determine a consensus underlying successful communication, the utility of individual communications is held to rest on sufficient approximation of meanings between people. 3 Figures, 17 References. Adapted from the source document. (shrink)

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It has been argued by some that the argument from vagueness is one of the strongest arguments in favor of the theory of temporal parts. I will neither support nor dispute this claim here. Rather, I will present a version of the argument from vagueness, which – if successful – commits one to the existence of modal parts. I argue that a commitment to the soundness of the argument from vagueness for temporal parts compels one to commit to the soundness (...) of the argument from vagueness for modal parts. I say compels, but not entails; an objection to one of the arguments highlights analogous ways to reject the other, making it difficult to endorse one and reject the other. This would be a significant conclusion, if true, since there are far fewer who currently commit themselves to modal parts than the many who currently commit themselves to temporal parts. (shrink)

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I argue that there can be no such thing as a borderline case of the predicate ‘phenomenally conscious’: for any given creature at any given time, it cannot bevague whether that creature is phenomenally conscious at that time. I first defend the Positive Characterization Thesis, which says that for any borderline case of any predicate there is a positive characterization of that case that can show any sufficiently competent speaker what makes it a borderline case. I then appeal (...) to the familiar claim that zombies are conceivable, and I argue that this claim entails that there can be no positive characterizations of borderline cases of ‘phenomenally conscious’. By the Positive Characterization Thesis, it follows that ‘phenomenally conscious’ can not have any borderline cases. (shrink)

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Contextualism concerning vagueness (hereafter ‘CV’) is a popular response to the puzzle of vagueness.[1] The goal in this paper is to uncover in what ways vagueness may be a particular species of context-sensitivity. The most promising form of CV turns out to be a version of socalled ‘Non-Indexical Contextualism’.[2] In §2, we sketch a generic form of CV (hereafter ‘GCV’). In §3, we distinguish between Truth CV and Content CV. A non-indexical form of CV is a form of Truth CV, (...) while an indexical form of CV is a form of Content CV. In §4, we argue that the theory of vagueness given in Fara (2000) is crucially incomplete but is best seen as a non-indexical form of CV. In §5, we set forth four kinds of error-theory to which CV might be committed. It turns out that Non-Indexical CV is committed to a weaker, and more plausible, error-theory than Indexical CV. In §6, we address a challenge posed by Keefe (2007) to the effect that CV entails that any speech report of what has been said by a particularvague utterance, where the context of utterance and the reporting context are relevantly different, will almost always be inaccurate. While this challenge is prima facie effective against Indexical CV it proves to be less effective against Non-Indexical CV. In §7, we look at two tests for context-sensitivity and assess whether they can be employed against CV. These tests, if cogent, reveal that the only workable form of CV is Non-Indexical CV. (shrink)

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On two standard views of vagueness, vagueness as to whether Harry is bald entails that nobody knows whether Harry is bald—either because vagueness is a type of missing truth, and so there is nothing to know, or because vagueness is a type of ignorance, and so even though there is a truth of the matter, nobody can know what that truth is. Vagueness as to whether Harry is bald does entail that nobody clearly knows that Harry is bald and that (...) nobody clearly knows that Harry is not bald. But it does not entail that nobody knows that Harry is bald or that nobody knows that Harry is not bald. Hence, the two standard views of vagueness are mistaken. (shrink)

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The Lewis-Sider argument from vagueness is one of the most powerful objections against restricted composition. Many have resisted the argument by rejecting its key premise, namely that existence is notvague. In this paper, I argue that this strategy is ineffective as a response to vagueness-based objections against restricted composition. To that end, I formulate a new argument against restricted composition: the argument from determinate vagueness. Unlike the Lewis-Sider argument, my argument doesn’t require accepting that existence is not (...) class='Hi'>vague, but only that it is notvague in a specific way, which, I argue, is entailed by restricted composition. I show that the rejection of this species ofvague existence follows from assumptions even friends ofvague existence should be happy to accept. (shrink)

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In collective harm cases, bad consequences follow if enough people act in a certain way even though no such individual act makes a difference for the worse. Global warming, overfishing and Derek Parfit’s famous case of the harmless torturers are some examples of such harm. Shelly Kagan argues that there is a threshold such that one single act might trigger harm in all collective harm cases. Julia Nefsky points to serious shortcomings in Kagan’s argument, but does not show that his (...) conclusion is incorrect. I argue that our best theories of vagueness (the epistemic view of vagueness, three-valued logic, and supervaluationism) entail that there is a threshold in all collective harm cases. However, my analysis points to another problem with Kagan’s argument: the thresholds are not necessarily perceptible. Given the assumption that only perceptible differences matter morally, passing such a threshold does not necessarily trigger morally relevant harm, pace Kagan. Last, I consider two variants of Kagan’s argument and find both problematic. One controversially assumes that observational relations like ‘cannot perceive the difference between’ are transitive. The other problematically assumes that so called triangulation always is possible. (shrink)

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This chapter contains sections titled: 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9.

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There is a trade-off between specificity and accuracy in existing models of belief. Descriptions of agents in the tripartite model, which recognizes only three doxastic attitudes—belief, disbelief, and suspension of judgment—are typically accurate, but not sufficiently specific. The orthodox Bayesian model, which requires real-valued credences, is perfectly specific, but often inaccurate: we often lack precise credences. I argue, first, that a popular attempt to fix the Bayesian model by using sets of functions is also inaccurate, since it requires us to (...) have interval-valued credences with perfectly precise endpoints. We can see this problem as analogous to the problem of higher order vagueness. Ultimately, I argue, the only way to avoid these problems is to endorse Insurmountable Unclassifiability. This principle has some surprising and radical consequences. For example, it entails that the trade-off between accuracy and specificity is in-principle unavoidable: sometimes it is simply impossible to characterize an agent’s doxastic state in a way that is both fully accurate and maximally specific. What we can do, however, is improve on both the tripartite and existing Bayesian models. I construct a new model of belief—the minimal model—that allows us to characterize agents with much greater specificity than the tripartite model, and yet which remains, unlike existing Bayesian models, perfectly accurate. (shrink)

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Can identity itself bevague? Can there bevague 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 bevague. We defend the argument from objections and endorse this conclusion. We acknowledge, however, that the argument does not (...) by itself establish either that there cannot bevague objects or that there cannot be identity statements that are indeterminate for ontic reasons. And we further acknowledge that it does not by itself establish that there cannot be identity statements that are indeterminate in virtue of the existence ofvague objects. We then go on to argue that, despite this, one who believes invague objects cannot endorse Evans’s argument. To establish this we offer supplementary arguments that show that ifvague objects exist then identity isvague, and that if identity isvague thenvague objects exist. Finally we draw attention to an argument parallel to that of Evans’s, but safer, which can be employed against the putative ontic indeterminacy in identity ofvague objects which can be differentiated by identity-free properties. (shrink)

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ABSTRACT: Stewart Shapiro recently argued that there is no higher-order vagueness. More specifically, his thesis is: (ST) ‘So-called second-order vagueness in ‘F’ is nothing but first-order vagueness in the phrase ‘competent speaker of English’ or ‘competent user of “F”’. Shapiro bases (ST) on a description of the phenomenon of higher-order vagueness and two accounts of ‘borderline case’ and provides several arguments in its support. We present the phenomenon (as Shapiro describes it) and the accounts; then discuss Shapiro’s arguments, arguing that (...) none is compelling. Lastly, we introduce the account of vagueness Shapiro would have obtained had he retained compositionality and show that it entails true higher-order vagueness. (shrink)

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One of the most influential arguments in favour of perdurantism is the Argument from Vagueness. The argument proceeds in three stages: The first aims to establish atemporal universalism. The second presents a parallel argument in favour of universalism in the context of temporalized parthood. The third argues that diachronic universalism entails perdurantism. I offer a novel objection to the argument. I show that on the correct way of formulating diachronic universalism the principle does not entail perdurantism. On the other hand, (...) if diachronic universalism is formulated as Sider proposes, the argument fails to establish his principle, and thus perdurantism. (shrink)

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Does vagueness exclude knowledge? After arguing for an affirmative answer to this question, I consider a fascinating objection. Barnett offers purported counterexamples to the following: Vagueness as to whether p entails that nobody knows whether p. These putative counterexamples, were they successful, would establish that standard accounts of vagueness are mistaken. I defend three central theses: First, whenever it isvague whether p competent speakers would be ambivalent about whether p when considering whether p, and such ambivalence would exclude (...) knowledge of whether p. Second, it is impossible for there to be vagueness regarding which of two polar opposite mental states obtains when only one of such states obtains. Finally, this type of impossibility constitutes evidence for dualism; i.e., the thesis that mental states are neither identical to physical states nor obtain in virtue of the obtaining of physical states. (shrink)

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I here argue that Ted Sider's indeterminacy argument against vagueness in quantifiers fails. Sider claims that vagueness entails precisifications, but holds that precisifications of quantifiers cannot be coherently described: they will either deliver the wrong logical form to quantified sentences, or involve a presupposition that contradicts the claim that the quantifier isvague. Assuming (as does Sider) that the “connectedness” of objects can be precisely defined, I present a counter-example to Sider's contention, consisting of a partial, implicit definition of (...) the existential quantifier that in effect sets a given degree of connectedness among the putative parts of an object as a condition upon there being something (in the sense in question) with those parts. I then argue that such an implicit definition, taken together with an “auxiliary logic” (e.g., introduction and elimination rules), proves to function as a precisification in just the same way as paradigmatic precisifications of, e.g., “red”. I also argue that with a quantifier that is stipulated as maximally tolerant as to what mereological sums there are, precisifications can be given in the form of truth-conditions of quantified sentences, rather than by implicit definition. (shrink)

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Epistemicists claim that if it isvague whether p, it is unknowable whether p. Some contest this on epistemic grounds:vague intuitions aboutvague matters need not fully preclude knowledge, if those intuitions are response-dependent in some special sense of enablingvague knowledge. This paper defends the epistemicist principle that vagueness entails ignorance against such objections. I argue that not only is response-dependence an implausible characterization of actualvague matters, its mere possibility poses no threat (...) to epistemicism and is properly accounted for by the epistemicist’s own principles. (shrink)

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Unrestricted Composition (UC) is, roughly, the claim that given any objects at all, there is something which those objects compose. (UC) conflicts in an obvious way with common sense. It has as a consequence, for instance, that there is something which has as parts my nose and the moon. One of the more influential arguments for (UC) is Theodore Sider’s version of the Argument from Vagueness. (A version of the Argument from Vagueness was first presented by David Lewis (1986), pp. (...) 212–213). That argument purports to show that some plausible claims concerning the nature of vagueness entail (UC). In this paper I will suggest a response to this argument. I will show that the proponent of Supersubstantivalism (SS)—the view that material objects are identical to regions of spacetime—can reject a premise of Sider’s argument without denying the plausible claims concerning vagueness. Doing so requires only rejecting a certain view concerning the relationship between the proper sub-region relation and the proper parthood relation. So, proponents of (SS) are in a better position than many of us to side with common sense regarding composition. In the first section of the paper, I will present Sider’s argument. In the second section, I will introduce (SS) and briefly discuss some reasons one might have to believe that it is true. In the third section, I will show how the proponent of (SS) can avoid commitment to (UC) and reject a premise of Sider’s argument. Last, I’ll briefly consider and respond to some objections. (shrink)

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Does ‘remembering that p’ entail ‘knowing that p’? The widely-accepted epistemic theory of memory answers affirmatively. This paper purports to reveal the tension between ETM and the prevailing anti-luck epistemology. Central to my argument is the fact that we often ‘vaguely remember’ a fact, of which one plausible interpretation is that our true memory-based beliefs formed in this way could easily have been false. Drawing on prominent theories of misremembering in philosophy of psychology, I will construct cases where the subject (...) vaguely remembers that p while fails to meet the safety condition, which imply either that ETM is false or that safety is unnecessary for knowledge. The conclusion reached in this paper will be a conditional: if veritic epistemic luck is incompatible with knowledge, then ‘remembering that p’ does not entail ‘knowing that p’. (shrink)

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Sainsbury argued that exact extensions for predicates entails the unacceptable infinite tower of higher order vagueness so that exact extensions must be rejected. I offer a second argument: The exact extensions arise when semantic values are assumed to be (exact) properties. But no assignment of unique properties to predicates could arise from any real-world finite basis. How, then, is talk of properties as semantic values to be understood? We distinguish the precise compositional rules of semantics from the operation of messy, (...) imprecise rules at the word/world interface for applicability of minimal predicates. When such application is sufficiently clear it is idealized as property instantiation and semantic composition proceeds in familiar ways. These imprecise rules for application of minimal predicates provide the proper locus for study of vagueness. The conclusions thus far apply to show that higher order vagueness is not forced and that classical logic can generally be retained. I discuss implications for the sorites paradox. Abandoning properties entails abandoning simple correspondence truth understood as Pa is true just in case a has the property signified by P. As an alternative I outline a pragmatist approach to truth, the spirit of which is conveyed by the slogan, “To be true enough is to work well enough.”. (shrink)

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Most life science research entails dual-use complexity and may be misused for harmful purposes, e.g. biological weapons. The Precautionary Principle applies to special problems characterized by complexity in the relationship between human activities and their consequences. This article examines whether the principle, so far mainly used in environmental and public health issues, is applicable and suitable to the field of dual-use life science research. Four central elements of the principle are examined: threat, uncertainty, prescription and action. Although charges against the (...) principle exist – for example that it stifles scientific development, lacks practical applicability and is poorly defined andvague – the analysis concludes that a Precautionary Principle is applicable to the field. Certain factors such as credibility of the threat, availability of information, clear prescriptive demands on responsibility and directives on how to act, determine the suitability and success of a Precautionary Principle. Moreover, policy-makers and researchers share a responsibility for providing and seeking information about potential sources of harm. A central conclusion is that the principle is meaningful and useful if applied as a context-dependent moral principle and allowed flexibility in its practical use. The principle may then inspire awareness-raising and the establishment of practical routines which appropriately reflect the fact that life science research may be misused for harmful purposes. (shrink)

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This chapter explores the intersection of experimental philosophy and philosophical logic. It considers a distinction between pure and applied logic. It sketches some ways in which experimental results and empirical results more broadly, can inform and have informed debates within philosophical logic. The chapter lays out a way of looking at the situation that makes plain at least one way in which people should expect experimental and logical concerns to overlap. It turns to the phenomenon of vagueness, where people can (...) see this overlap explored and developed from multiple angles, showing just how intimately related experiment and logic can be. Logic is not only useful for exploring hypotheses about truth conditions and entailments but also for exploring hypotheses about reasoning. Logical and experiment can fruitfully interact in a variety of applications, and that is all people need for experimental philosophical logic to be worthwhile. (shrink)

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This paper presents and evaluates the early Husserl’s account of typicality. In the Logical Investigations, Husserl holds that the meaning of ordinary language (common) names is sensitive to typicality: this meaning depends on typical examples which vary in different contexts and are more or less similar to one another. This seems to entail that meanings, which according to Husserl are concepts, are “fluctuating” (schwankend) andvague. Prima facie, such a claim contravenes his theory of ideal meanings, or concepts, which (...) are “fixed” (fest) and sharp. However, Husserl wants to save this theory. He claims that the fluctuation and vagueness in question are not to be found in the meaning itself, or the concept, but rather derive from the act of meaning. Thus, he apparently manages to make room for typicality in ordinary language while accepting only fixed and sharp meanings. After presenting Husserl’s theory, I evaluate it and ask whether he will still be committed, despite his own claims, to accepting prototype concepts to account for typicality in ordinary language. (shrink)

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A common response to the paradoxes of vagueness and truth is to introduce the truth-values “neither true nor false” or “both true and false” (or both). However, this infamously runs into trouble with higher-order vagueness or the revenge paradox. This, and other considerations, suggest iterating “both” and “neither”: as in “neither true nor neither true nor false.” We present a novel explication of iterating “both” and “neither.” Unlike previous approaches, each iteration will change the logic, and the logic in the (...) limit of iteration is an extension of paraconsistent quantum logic. Surprisingly, we obtain the same limit logic if we use (a) both and neither, (b) only neither, or (c) only neither applied to comparable truth-values. These results promise new and fruitful replies to the paradoxes of vagueness and truth. (The paper allows for modular reading: for example, half of it is an appendix studying involutive lattices to prove the results.). (shrink)

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In _Real Natures and Familiar Objects_ Crawford Elder defends, with qualifications, the ontology of common sense. He argues that we exist -- that no gloss is necessary for the statement "human beings exist" to show that it is true of the world as it really is -- and that we are surrounded by many of the medium-sized objects in which common sense believes. He argues further that these familiar medium-sized objects not only exist, but have essential properties, which we are (...) often able to determine by observation. The starting point of his argument is that ontology should operate under empirical load -- that is, it should give special weight to the objects and properties that we treat as real in our best predictions and explanations of what happens in the world. Elder calls this presumption "mildly controversial" because it entails that arguments are needed for certain widely assumed positions such as "mereological universalism". Elder begins by defending realism about essentialness. He then defends this view of familiar objects against causal exclusion arguments and worries about vagueness. Finally, he argues that many of the objects in which common sense believes really exist, including artifacts and biological devices shaped by natural selection, and that we too exist, as products of natural selection. (shrink)

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Biological species are often taken as counterexamples to essentialist accounts of natural kinds. Essentialists like Ellis (2001) agree with nominalists that because biological kinds evolve, any distinctions between kinds of biological kind must ultimately be arbitrary. The resulting vagueness in the extension of natural kind predicates in the case of species has led to the claim that species ought to be construed as individuals rather than kinds (Ghiselin 1974, 1987; Hull 1976, 1978). I examine the possibility that causal features extrinsic (...) to the properties of natural kinds are responsible for establishing the unity of the properties of a natural kind. I reject the intuitive idea that laws of nature might act as such an external mechanism because this would entail an account of ceteris paribus biological laws, where there are no plausible truthmakers in terms of kinds or properties. I suggest instead that symbiosis is a plausible external causal mechanism, which explains the evolution of homeostasis in natural kind clusters. This involves the acceptance of an expanded account of evolutionary development as cooperative symbiosis. (shrink)

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The premises that a four foot man is short and that a man one tenth of an inch taller than a short man is also short entail by universal instantiation and "modus ponens" that a seven foot man is short. The negation of the second premise seems to entail there are virtually no borderline cases of short men, While to deny the second premise and its negation conflicts with the principle of bivalence, If not excluded middle. But the paradox can (...) be dissolved without resort to degrees of truth or any non-Classical system of logic. If some true predications can be semantically uncertain in a sense suitable for defining borderline cases, The second premise can be denied without denying the vagueness of "short" or reintroducing a sorites paradox along with higher order borderline cases. (shrink)

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Supervaluational accounts of vagueness have come under assault from Timothy Williamson for failing to provide either a sufficiently classical logic or a disquotational notion of truth, and from Crispin Wright and others for incorporating a notion of higher-order vagueness, via the determinacy operator, which leads to contradiction when combined with intuitively appealing ‘gap principles’. We argue that these criticisms of supervaluation theory depend on giving supertruth an unnecessarily central role in that theory as the sole notion of truth, rather than (...) as one mode of truth. Allowing for the co-existence of supertruth and local truth, we define a notion of localentailment in supervaluation theory, and show that the resulting logic is fully classical and allows for the truth of the gap principles. Finally, we argue that both supertruth and local truth are disquotational, when disquotational principles are properly understood. (shrink)

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One of the arguments against conducting human subject trials in the Third World adopts a distributive justice principle found in a commentary of the CIOM'S Eighth Guideline for international research on human subjects. Critics argue that non-participant members of the community in which the trials are conducted are exploited because sponsoring agencies do not ensure that the products developed have been made reasonably available to these individuals. I argue that the distributive principle's wording is toovague and ambiguous to (...) be used to criticize any trial. Furthermore, the mere fact that an experiment does not fulfill this particular distributive justice principle does not entail that it is unethical. (shrink)

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In lieu of an abstract, here is a brief excerpt of the content:HUME ON BLAME AND EXCUSE17. Hume's account of blame and excuse differs in fundamental respects from many contemporary ones. Many contemporary views, ultimately derived from the Kantian dictum that 'ought' implies 'can', base excuses on the nonvoluntary character of an action. For example, H. L. A. Hart argues that the basic requirements for responsibility are that a person have the capacity and a fair opportunity to do what is (...) required. A person is to be excused for an action if he lacked either the capacity or opportunity to do what was required. As these are conditions for an action being voluntary in a suitably narrow sense, Hart primarily bases excuses on the nonvoluntary character of actions. Likewise, Richard Brandt's view, which in many respects is similar to Hume's, requires that the manifestation of a character trait be subject to a high degree of voluntary control before blame.2 is appropriate. Hume, however, explicitly denies that either a character trait or its manifestation in conduct need be subject to voluntary control for blame to be appropriate. The nonvoluntary character of an action does not necessarily excuse one from blame. Hume makes four key claims about blame and excuse. (1) The ultimate objects of praise and blame are mental qualities, not actions. (2) Actions are considered only as signs of mental qualities. (3) The possession and expression of these mental qualities may be appropriate objects of praise or blame even if they are nonvoluntary. (4) Persons have excuses if their actions do not indicate enduring mental qualities. These points need to be substantiated and explained. The first two claims may be considered together. That Hume holds mental qualities are the ultimate objects of praise and blame and that actions are considered only as signs of mental qualities is indisputable. 18. 'Tis evident, that when we praise any actions, we regard only the motives that produced them, and consider the actions as signs or indications of certain principles in the mind and temper. The external performance has no merit. We must look within to find the moral quality. This we cannot do directly; and therefore fix our attention on actions, as on external signs. But these actions are still considered as signs; and the ultimate object of our praise and approbation is the motive, that produced them. For present purposes, only two points need be noted about this passage. First, it clearly states that the ultimate objects of praise and, as he indicates in his following 4 paragraph, blame are always mental qualities. The expression mental qualities isvague, perhaps deliberately so. Sometimes Hume uses the term motive instead. By 'motive' he does not intend any passing desire or further intention which one may have in acting, e.g., embarrassing others. For Hume, some motives are not even dispositions to act. Second, actions or external performances have no merit. They are only signs of mental qualities. Even if the concept of an action includes more than the external behavior, such as the intention, it does not include motives or desires. A difference in intention may entail a difference in action, but a difference in motive does not. The same action may be performed from different motives. Hence, actions are not logically connected with the objects of praise and blame. Hume's claim that actions themselves have no merit, it might be objected, is incorrect. People do constantly evaluate actions. If they did not, then actions would not be considered untoward and a basis for attributing blame. However, Hume does not deny that actions may be evaluated in some way or other, only that they alone have merit or are appropriate objects of praise and blame. Actions may be evaluated without reference to mental qualities, for example, as right or wrong, useful or unuseful. Hume is 19. chiefly concerned with evaluating actions as virtuous or vicious. The terms virtuous and vicious as applied to actions involve an element of praise and blame, whereas the terms right and wrong, at least in most of their uses, do not. Thus, Hume is not denying that actions alone may have merit in the sense of value or utility. Rather, he is denying that actions... (shrink)

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In this paper I criticize a version of supervaluation semantics. This version is called "Region-Valuation" semantics. It's developed by Pablo Cobreros. I argue that all supervaluationists, regionalists in particular, and truth-value gap theorists of vagueness more generally, are commited to the validity of D-intro, the principle that every sentence entails its definitization (the truth of "Paul is tall" guarantees the truth of "Paul is definitely tall"). The principle embroils one in a paradox that's distinct from, but related to, the sorites (...) paradox. I call it the "gap-principles paradox". -/- . (shrink)

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In the literature on medical ethics, it is generally admitted that vulnerable persons or groups deserve special attention, care or protection. One can define vulnerable persons as those having a greater likelihood of being wronged – that is, of being denied adequate satisfaction of certain legitimate claims. The conjunction of these two points entails what we call the Special Protection Thesis. It asserts that persons with a greater likelihood of being denied adequate satisfaction of their legitimate claims deserve special attention, (...) care or protection. Such a thesis remainsvague, however, as long as we do not know what legitimate claims are. This article aims at dispelling this vagueness by exploring what claims we have in relation to health care – thus fleshing out a claim-based conception of vulnerability. We argue that the Special Protection Thesis must be enriched as follows: If individual or group X has a greater likelihood of being denied adequate satisfaction of some of their legitimate claims to physical integrity, autonomy, freedom, social provision, impartial quality of government, social bases of self-respect or communal belonging, then X deserves special attention, care or protection. With this improved understanding of vulnerability, vulnerability talk in healthcare ethics can escape vagueness and serve as an adequate basis for practice. (shrink)

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This dissertation is a critical examination of dialetheism, the view that there are true contradictions. Dialetheism's proponents argue that adopting the view will allow us to solve hitherto unsolved problems, including the well-known logical paradoxes. ;Dialetheism faces three kinds of challenge. Challenges of the first kind put in doubt the intrinsic coherence of dialetheism. It can be claimed, for example, that it is incoherent for a claim to be both true and false; that claims known to be false cannot be (...) accepted; that claims known to be false cannot be rationally accepted; and that dialetheism entails the falsity of some of its own theoretical claims. The second kind of challenge concerns the use of paraconsistent logics, which dialetheists must adopt on pain of accepting the truth of every proposition. I examine a number of paraconsistent logics, and conclude that either they come at an unacceptably high price or they do not support the dialetheist project. ;I devote most attention to the third kind of challenge, according to which dialetheism fails to provide the promised solutions to the paradoxes and other previously intractable problems, and so we lose the major motivation for the theory. Proponents claim that dialetheism allows for the solution of numerous problems, particularly in metaphysics, law, and logic. In the case of metaphysics, it is claimed that dialetheism allows us to deal with puzzles involving change, vagueness, and motion. However, I argue that the proposed solution does not eliminate the old metaphysical problems, and in fact gives rise to new ones. In the case of law, it is claimed that dialetheism can allow us to deal with legal contradiction. I argue there are more plausible means of solving such conflicts. The strongest case for dialetheism is that it allows us to solve logical and semantic paradoxes of self-reference, some of which have endured for well over two thousand years. I construct a paradox that the dialetheist cannot accommodate, and which shows that dialetheism never provided a solution to the paradoxes at all, even in their more familiar forms. (shrink)

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ABSTRACTMost life science research entails dual‐use complexity and may be misused for harmful purposes, e.g. biological weapons. The Precautionary Principle applies to special problems characterized by complexity in the relationship between human activities and their consequences. This article examines whether the principle, so far mainly used in environmental and public health issues, is applicable and suitable to the field of dual‐use life science research. Four central elements of the principle are examined: threat, uncertainty, prescription and action. Although charges against the (...) principle exist – for example that it stifles scientific development, lacks practical applicability and is poorly defined andvague – the analysis concludes that a Precautionary Principle is applicable to the field. Certain factors such as credibility of the threat, availability of information, clear prescriptive demands on responsibility and directives on how to act, determine the suitability and success of a Precautionary Principle. Moreover, policy‐makers and researchers share a responsibility for providing and seeking information about potential sources of harm. A central conclusion is that the principle is meaningful and useful if applied as a context‐dependent moral principle and allowed flexibility in its practical use. The principle may then inspire awareness‐raising and the establishment of practical routines which appropriately reflect the fact that life science research may be misused for harmful purposes. (shrink)

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The paper critically discusses two prominent arguments against closure principles for knowledge. The first one is the “argument from aggregation”, claiming that closure under conjunction has the consequence that, if one individually knows i premises, one also knows their i-fold conjunction—yet, every one of the premises might exhibit interesting positive epistemic properties while the i-fold conjunction might fail to do so. The second one is the “argument from concatenation”, claiming that closure underentailment has the consequence that, if one (...) knows a premise, one also knows each of its remote consequences one arrives at—yet, again, the premise might exhibit interesting positive epistemic properties while some of its remote consequences might fail to do so. The paper firstly observes that the ways in which these two arguments try to establish that the relevant closure principle has the relevant problematic consequence are strikingly similar. They both crucially involve showing that, given the features of the case, the relevant closure principle acts in effect as a soritical principle, which is in turn assumed to lead validly to the relevant problematic consequence. There are however nontransitive logics of vagueness where soritical principles do not have any problematic consequence. Assuming that one of these logics is the correct logic of vagueness, the paper secondly observes that both arguments describe situations where knowledge is arguablyvague in the relevant respects, so that a tolerant logic should be used in reasoning about it, with the effect that the relevant soritical principle no longer validly leads to the relevant problematic consequence. This shows an interesting respect in which the gap between validity and good inference that arguably arises in a transitive framework can be bridged in a tolerant one, thereby approximating better certain features of our epistemic lives as finite subjects. Moreover, even for those who do not subscribe to tolerant logics, the paper’s two observations jointly indicate that, for all the arguments from aggregation and concatenation show, the status of the relevant closure principles should be no worse than that assigned by one’s favoured theory of vagueness to soritical principles, which only rarely is plain falsity and can indeed get arbitrarily close to full truth. (shrink)

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The modern form of realism about properties has typically been far more austere than its Platonic ancestor. There is nothing especially austere about denying, as most modern property realists do, the reality of “disjunctive properties”—properties which would correspond, in the world, to disjunctive predicates such as “is an apple or an ocean,” “is observed by now and green or not observed by now and blue,” etc. But modern property realists typically deny far more. It has been argued, for example, that (...) the only real properties there are are properties flanked by contrary opposites—so that there is no real property corresponding, for example, to the predicate “is self-identical.” Perhaps the biggest step in the direction of austerity is the argument, offered by a number of modern property realists, that there can be in the world no “determinable properties” corresponding to such determinable predicates as “has mass,” “is colored,” or “has a valence.” For these arguments are said to establish that not even such familiar properties as redness or painfulness really exist; to predicates such as “is red” and “is painful,” no real property corresponds. The business of this paper is to examine the prevailing arguments against “determinable properties,” and to argue that the ontology which they entail is decidedly less austere than is commonly supposed. The motivation is mainly just to get a more accurate ontology of properties. But a side benefit, if my arguments are correct, will be an increased appreciation for the treatment ofvague predicates that posits truth-value gaps—and with it, increased ease with the idea that corresponding tovague predicates there really are, in the world,vague properties. (shrink)

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There are several forms of the Ontological Argument, but it is more or less fair to say that all hang on the contention that the notion of a perfect being entails the existence of that being, since existence is involved in perfection. My first interest is in the word "perfect." The word, I think, is usuallyvague but it seems to me that, in the context of the proof, it has a meaning which turns out to be much more (...) pedestrian than we would suspect. The argument, if it is valid, must assert that any perfect being would have to have every possible characteristic. It alleges that existence is a characteristic and it is, of course, over this that most debate has centered. It seems clear, however, that "perfect," as employed in the argument, merely means what we would call "complete" in less august transactions. In some forms of the proof, indeed, this is made somewhat clearer since the expression "greatest possible" being is substituted for "perfect." Ordinarily, no one would be tempted to pass lightly from the notion of "that which is complete" to the notion of "the deity." Both "perfect" and "greatest possible" appear to have moral connotations and "complete" usually does not. The slide, however, is made easier by the recurrent notion that evil is not a positive quality but merely the absence of another positive quality, usually goodness. If this view is held, it certainly does follow that whatever is "complete" must be "perfect" in the moral sense as well as in the other usual senses. It is not, here, my concern to pass judgment on this notion. I am, at the moment, merely trying to trace possible sources of confusion in the argument. (shrink)

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Malapportionment—electoral districts with divergent ratios of people to representation—was ruled to be unconstitutional in a widely venerated series of cases before the Warren Court. Those cases held that a principle of political equality, ‘one person, one vote’, is required by the Constitution. But what is the content of that principle? Many Justices and commentators declare that it isvague, empty, circular, or meaningless. This creates a murder mystery. Malapportionment was killed; but by what, exactly? This Article seeks an answer (...) by focusing on the Court’s commitments about the scope and strictness of one person, one vote: it is a broad (rather than narrow) principle of rough (rather than exact) equality. As such, one person, one vote requires an equal number of people per district and an equal number of votes per voter; and it requires a roughly equal number of people per district. These commitments are attractive in isolation. But, this Article shows, they are objectionable in conjunction: they entail that one person, one vote is too permissive, as it only requires a roughly equal number of votes per voter. If your vote is roughly equal to mine when your district is fractionally more populous than mine, your vote is also roughly equal to mine when I can cast fractionally more votes than you. -/- Since this problem follows inexorably from the Court’s commitments about the scope and strictness of one person, one vote, there are two possible solutions. First, one person, one vote could be broad a principle of exact equality; administrability may then justify underenforcing the principle in distributing voters to districts, but not in distributing votes to voters. Second, one person, one vote could include a narrow principle requiring rough equality in apportionment, as well as a distinct principle requiring exactly equal votes per voter. These solutions have important constitutional implications—including for resolving the population baseline at issue in malapportionment, which remains uncertain after Evenwel v. Abbott. But neither provides an easy way out. Each makes one person, one vote either too restrictive or too permissive. -/- This puzzle brings to light why the operative principle in a venerated series of cases is deeply unclear and unsettled. But it has a special significance beyond that. One person, one vote lies at the heart of America’s constitutional democracy, which is already under considerable threat. On the one hand, if the content of the principle is too restrictive (or too uncertain), then objections to its constitutionality are considerably strengthened. On the other hand, if it is too permissive, then one person, one vote provides little constraint on Vice-President J.D. Vance’s recent proposal to give extra votes to parents, as well as myriad similar policies and procedures that would erode voters’ equality at the ballot box. (shrink)

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In lieu of an abstract, here is a brief excerpt of the content:Toward a Non-Cartesian Psychotherapeutic Framework: Radical Pragmatism as an AlternativeLouis S. Berger (bio)AbstractPostmodern criticism has identified important impoverishments that necessarily follow from the use of Cartesian frameworks. This criticism is reviewed and its implications for psychotherapy are explored in a psychoanalytic context. The ubiquitous presence of Cartesianism (equivalently, representationism) in psychoanalytic frameworks—even in some that are considered postmodern—is demonstrated and criticized. The postmodern convergence on praxis as a desirable (...) alternative to Cartesianism is reported, and its relevance for psychoanalysis is considered. The severe conceptual difficulties entailed in formulating such an alternative are discussed, as are those difficulties that would be encountered were psychoanalysis to attempt the shift from explanatory mental science to praxis. The principal psychoanalytic problematics explored are: the paradoxical relationships between theory and therapeutic technique; the therapeutic action; and validation of clinical practices. Initial, nontraditional suggestions for addressing these problems are offered.Keywordspsychoanalysis, therapeutic action, representation, state space, praxis, hermeneutics, Descartes, Heidegger, Wittgenstein“But the inability to bring one’s subject under conceptual control, fixing it propositionally, is not the end of thinking; on the contrary, it were better to say that the breakdown of concepts and the failure of words is an opening that takes us out of the realm where representation and calculation are all that matter to thinking.... [T]his is what happens in the Socratic dialogue where the negativity in which one ends up at a loss for words is at the same time that which sets thinking free.”Bruns 1989, 9“To evolve theory as though our methods and processes of study were essentially the same, or could be the same, as those of other sciences, or could be disregarded when it comes to theory, implies a view of reality that is no longer tenable, least of all in that ambiguous area which we call psychic reality. Nevertheless, all of us are still more or less captives of an erroneous understanding of objectivity and objective reality....”Loewald 1970, 45 [End Page 169]CartesianismCartesianism still underlies and dominates much of today’s thought. It is the label for a network of interrelated ideas and themes:the ontological duality of mind and body; the subjective individualism implicit in the ultimate appeal to direct personal verification; the method of universal doubt which was supposed to lead us to indubitable truths; the doctrine that language and signs are an external disguise for thought; the doctrine that vagueness is unreal and that the philosophic endeavor is one of knowing clearly and distinctly a completely determinate reality; and most fundamentally, the doctrine that we can break out of the miasma of our language or system of signs and have direct intuitive knowledge of objects. (Bernstein 1971, 5–6)[The Cartesian assumptions] constitute a picture of science and the world somewhat as follows: there is an external world which can in principle be exhaustively described in scientific language. The scientist, as both observer and language-user, can capture the external facts of the world in propositions that are true if they correspond to the facts and false if they do not. Science is ideally a linguistic system in which true propositions are in one-to-one relation to facts, including facts that are not directly observed because they involve hidden entities or properties, or past events or far distant events. These hidden events are described in theories, and theories can be inferred from observation, that is, the hidden explanatory mechanism of the world can be discovered from what is open to observation. Man as scientist is regarded as standing apart from the world and able to experiment and theorize about it objectively and dispassionately.(Hesse 1980, vii)Hesse goes on to say that “almost every assumption underlying this account has been subjected to damaging criticism,” a view echoed by others: “Most contemporary philosophers have been in revolt against the Cartesian framework” (Bernstein 1971, 5); “A rejection of the Cartesian view is a central theme for both of the giants of twentieth-century philosophy, Heidegger and Wittgenstein” (Sass 1992, 444n 77); and “The notion of alternative conceptual frameworks has been a commonplace of our culture since Hegel” (Rorty 1982, 3).These criticisms arise... (shrink)

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In this article I challenge the standard view that clarity and coherence in moral philosophy and ethics are always good and obscurity necessarily bad. The appraisal of clarity, I argue, entails a risk of reducing and misrepresenting the complex and multifaceted nature of good, productive and true thinking and communication. Uncertainty and obscurity do not necessarily lead to vagueness, imprecision or meaning-obstruction. There are productive forms of uncertainty and there are unproductive forms. Indeed, to be precise, lucid and truthful sometimes (...) requires respecting and linguistically and conceptually reproducing the incoherence, obscurity and uncertainty of reality. (shrink)

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I develop and defend a novel answer to Peter van Inwagen’s ‘Special Composition Question,’ (SCQ) namely, under what conditions do some things compose and object? My answer is that things will compose an object when and only when they exist simultaneously relative to a reference frame (I call this ‘Temporally Restricted Composition’ or TREC). I then show how this view wards off objections given to ‘Unrestricted Mereology’ (UM). TREC, unlike other theories of Restricted Composition, does not fall prey to worries (...) about vagueness, anthropocentrism, or arbitrariness. TREC also has advantages over all the other answers to the SCQ. TREC is an account an A-theorist anti-Eternalist who wants an unrestricted mereology should accept. I also engage in some conceptual hygiene by showing how UM, as it should be used, should not, in itself, entail or contain a commitment to either Eternalism or Four-Dimensionalism. (shrink)

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