In the framework of quantitative possibility theory, two representation modes were developed: logical-based representation in terms of quantitative possibilistic bases and graphical-based representation in terms of product-based possibilistic networks. This paper deals with logical and graphical representations of uncertain information using a quantitative possibility theory framework. We first provide a deep analysis of the relationships between these two forms of representational frameworks. Then, in the logical setting, we develop syntactic relations between penalty logic and quantitative possibilistic (...) logic. These translations are useful for different applications and are interesting for taking advantage of each format at the inferential level. We also provide an algorithm for reasoning with quantitative possibilistic logic. The algorithm takes inspiration from the syntactic relations between quantitative possibilistic logic bases and penalty logic. Finally, we provide experimental results that compar.. (shrink)

The paper first introduces a cube of opposition that associates the traditional square of opposition with the dual square obtained by Piaget’s reciprocation. It is then pointed out that Blanché’s extension of the square-of-opposition structure into an conceptual hexagonal structure always relies on an abstract tripartition. Considering quadripartitions leads to organize the 16 binary connectives into a regular tetrahedron. Lastly, the cube of opposition, once interpreted in modal terms, is shown to account for a recent generalization of formal concept analysis, (...) where noticeable hexagons are also laid bare. This generalization of formal concept analysis is motivated by a parallel with bipolar possibility theory. The latter, albeit graded, is indeed based on four graded set functions that can be organized in a similar structure. (shrink)

Handling exceptions in a knowledge-based system is an important issue in many application domains, such as medical domain. Recently, there is an increasing interest in nonmonotonic extension of description logics to handle exceptions in ontologies. In this paper, we propose three preferential semantics for plausible subsumption to deal with exceptions in description logic-based knowledge bases. Our preferential semantics are defined in the framework of possibility theory, which is an uncertainty theory devoted to handling incomplete information. We consider (...) the properties of these semantics and their relationships. We also discuss the relationship between two of our preferential semantics and two existing preferential semantics. We extend a description logic-based knowledge base by adding preferential subsumptions. Entailment of plausible subsumptions relative to an extended knowledge base is defined. Properties of the preferential subsumption relations relative to an extended description logic-based knowledge base are discussed. Finally, we show that our semantics for plausible subsumption can be reduced to standard semantics of an expressive description logic. Thus, the problem of plausible subsumption checking under our semantics can be reduced to the problem of subsumption checking under the classical semantics. (shrink)

This paper argues for the existence of a fourth positive generic value relation that can hold between two items beyond ‘better than’, ‘worse than’, and ‘equally good’: namely ‘on a par’.

It is widely alleged that metaphysical possibility is “absolute” possibility Conceivability and possibility, Clarendon, Oxford, 2002, p 16; Stalnaker, in: Stalnaker Ways a world might be: metaphysical and anti-metaphysical essays, Oxford University Press, Oxford, 2003, pp 201–215; Williamson in Can J Philos 46:453–492, 2016). Kripke calls metaphysical necessity “necessity in the highest degree”. Van Inwagen claims that if P is metaphysically possible, then it is possible “tout court. Possible simpliciter. Possible period…. possib without qualification.” And Stalnaker writes, (...) “we can agree with Frank Jackson, David Chalmers, Saul Kripke, David Lewis, and most others who allow themselves to talk about possible worlds at all, that metaphysical necessity is necessity in the widest sense.” What exactly does the thesis that metaphysical possibility is absolute amount to? Is it true? In this article, I argue that, assuming that the thesis is not merely terminological, and lacking in any metaphysical interest, it is an article of faith. I conclude with the suggestion that metaphysical possibility may lack the metaphysical significance that is widely attributed to it. (shrink)

The Consequence argument is an argument from plausible premises–our lack of causal power over the laws and past–to an implausible conclusion: that if determinism is true, we are equally powerless with respect to the future. What the compatibilist needs is a theory of counterfactuals that preserves the links between counterfactuals, causation, and the natural laws in a way that supports our commonsense belief that we have the power to make a causal difference to the future but no such power (...) with respect to the past. Lewis’s critique of the Consequence argument was based on his theory of counterfactuals and his analysis of causation as a counterfactual relation between particular events. He argued that, at a world that is deterministic in the way that ours might be, counterfactuals are temporally asymmetric in a way that matches the contingent temporal asymmetry of cauation. So it is not surprising, but only to be expected, that the past is causally closed while the future is causally open. If this worked, it would be just what the compatibilist needs. But it doesn’t work. There is an argument, due to Tooley and recently endorsed by Wasserman, that a fundamental feature of Lewis’s theory of counterfactuals is inconsistent with the metaphysical possibility of time travel and backwards causation. If this is right, then Lewis’s response to the Consequence argument fails. I endorse this conclusion, but argue that there is a better theory of counterfactuals–a theory that leaves open the metaphysical possibility of time travel to the past and backwards causation. (shrink)

Name der Zeitschrift: Semiotica Jahrgang: 2015 Heft: 205 Seiten: 149-167.

Are companies, churches, and states genuine agents? Or are they just collections of individuals that give a misleading impression of unity? This question is important, since the answer dictates how we should explain the behaviour of these entities and whether we should treat them as responsible and accountable on the model of individual agents. Group Agency offers a new approach to that question and is relevant, therefore, to a range of fields from philosophy to law, politics, and the social sciences. (...) Christian List and Philip Pettit argue that there really are group or corporate agents, over and above the individual agents who compose them, and that a proper approach to the social sciences, law, morality, and politics must take account of this fact. Unlike some earlier defences of group agency, their account is entirely unmysterious in character and, despite not being technically difficult, is grounded in cutting-edge work in social choice theory, economics, and philosophy. (shrink)

In the first part of the paper I reconstruct Kant’s proof of the existence of a ‘most real being’ while also highlighting the theory of modality that motivates Kant’s departure from Leibniz’s version of the proof. I go on to argue that it is precisely this departure that makes the being that falls out of the pre-critical proof look more like Spinoza’s extended natura naturans than an independent, personal creator-God. In the critical period, Kant seems to think that transcendental (...) idealism allows him to avoid this conclusion, but in the last section of the paper I argue that there is still one important version of the Spinozistic threat that remains. -/- . (shrink)

In this essay, we present a theory of intercultural philosophical dialogue and comparative philosophy, drawing on both hermeneutics and analytic philosophy. We advocate the approach of “de-essentialization” across the board. It is true that similarities and differences are always to be observed across languages and traditions, but there exist no immutable cores or essences. “De-essentialization” applies to all “levels” of concepts: everyday notions such as green and qing 青, philosophical concepts such as emotion(s) and qing 情, and philosophical categories (...) such as forms of life and dao 道. We argue that interpretation is a holistic multi-directional process constrained by the principle of mutual attunement. It is necessary to assume that “the other” is a human being, who, in most cases, is consistent and stating that which is true or right. This is the condition of possibility for intercultural philosophical dialogue and comparative philosophy. No more necessary conditions are needed. There is no need to presuppose concepts or categories that are universal for all humans and their languages (such as emotion(s) and qing 情). (shrink)

We argue that Armstrong's Combinatorialism allows for the possibility of nothing by giving a Combinatorial account of the empty world and show that such an account is consistent with the ontological and conceptual aims of the theory. We then suggest that the Combinatorialist should allow for this possibility given some methodological considerations. Consequently, rather than being 'spoils for the victor', as Armstrong maintains, deciding whether there might have been nothing helps to determine which metaphysics of modality is (...) to be preferred. (shrink)

In recent decades, a ‘realist’ alternative to ideal theories of politics has slowly taken shape. Bringing together philosophers, political theorists, and political scientists, this countermovement seeks to reframe inquiry into politics and political norms. Among the hallmarks of this endeavor are a moral psychology that includes the passions and emotions; a robust conception of political possibility and rejection of utopian thinking; the belief that political conflict — of values as well as interests — is both fundamental and ineradicable; a (...) focus on institutions as the arenas within which conflict is mediated and contained; and a conception of politics as a sphere of activity that is distinct, autonomous, and subject to norms that cannot be derived from individual morality. For political realists, a ‘well-ordered society’ is rarely attainable; a modus vivendi without agreement on first principles is often the only practical possibility. Not only will ‘full compliance’ never be achieved, but also it is an assumption that yields misleading accounts of political norms. While realists offer a number of compelling criticisms of ideal theory, there are some lacunae in their stance. It is not yet clear whether realism constitutes a coherent affirmative alternative to idealism. Nor have realists clarified the extent of conflict that is consistent with political order as such. And because both sides accept ‘ought implies can’ as a constraint on the validity of political norms, much of the debate between realists and idealists revolves around deep empirical disagreements that are yet to be clarified. (shrink)

As J. Baird Callicott has argued, Adam Smith's moral theory is a philosophical ancestor of recent work in environmental ethics. However, Smith's "all important emotion of sympathy" (Callicott, 2001, p. 209) seems incapable of extension to entities that lack emotions with which one can sympathize. Drawing on the distinctive account of sympathy developed in Smith's Theory of Moral Sentiments, as well as his account of anthropomorphizing nature in "History of Astronomy and Physics," I show that sympathy with non-sentient (...) nature is possible within a Smithian ethics. This provides the possibility of extending sympathy, and thereby benevolence and justice, to nature. (shrink)

We here address the question of how, for a theory of justice, a concern for the promotion of equality can be combined with a concern for making people as well off as possible. Leximin, which requires making the worst off position as well off as possible, is one way of combining a concern for making people’s lives go well with a special concern for those who are especially poorly off. Many egalitarians, however, reject its near-monomaniacal focus on the worst (...) off position (to the exclusion of other poorly off persons). In this paper, we explore the possibility of combining a weak kind of egalitarianism with a weak kind of efficiency requirement in a way that avoids leximin’s obsession with the worst off position. For example, one may consider solving all cases where efficiency is not at issue by choosing the alternative that is most equal according to the Gini-coefficient or some other well-established inequality measure. All standard inequality measures sometimes judge an alternative as more equal than another alternative even though the latter maximizes the benefits of the worst off. Thus it may seem like a promising way of avoiding the leximin approach within an egalitarian framework. Surprisingly, given certain generally accepted assumptions, this turns out to be impossible. The only possible way of combining weak egalitarianism with weak efficiency requires, we shall show, the rejection of a widely accepted—but perhaps dubious—contraction consistency condition on justice or the acceptance of some version of the leximin principle. (shrink)

In the recent literature on the issue, a number of commentators have argued that Kant’s aesthetic theory commits him to the position that nothing is ugly. For instance, in ‘Why Kant finds nothing ugly’, Shier argues that ‘within Kant’s aesthetics, there cannot be any negative judgments of taste’ (Shier (1998): 413). And in ‘Kant’s problems with ugliness’, Thomson claims that ‘Kant’s aesthetic theory precludes […] ugliness’ (Thomson (1992): 107). In other words, as it is presented in some of (...) the literature, Kant’s account of aesthetic judgment seems to preclude him from accounting for the possibility of ugliness. A number of reasons have been put forward to explain why there can be no ugliness for Kant. Some have to do with his account of experience in general. Others have to do with the very nature of the free play between imagination and understanding. Of course, the real source of the problem is that the Critique of Judgment does not actually discuss ugliness, so commentators are left with the task of filling in the gaps. This paper aims to argue that Kant’s account of aesthetic judgment commits him not only to the existence of the ugly, but to the distinction between two kinds of ugliness. To support this claim, I will start from the premise that if there is to be room for ugliness, it should be defined as the contrary of beauty. However, I will suggest that Kant’s account of beauty can be negated in two ways, one that gives rise to impure ugliness and the other to pure ugliness. I will examine them in turn, first by showing that impure ugliness is the contrary of beauty insofar as it contravenes our interests and produces a desire to dispose of it, whereas beauty is necessarily disinterested for Kant. In the second section, I will use Kant’s definition of judgments of pure beauty to carve a space for an account of pure ugliness. For, it should present all the characteristics that make it “pure” whilst replacing the characteristics that make it beautiful with the ones that make it ugly. On this basis, I will define pure ugliness as the disinterested displeasure caused by the experience of what I will call “foul play” between the imagination and the understanding. (shrink)

Yuyan Yiyi Zhicheng : Zizhu de Yiyi yu Shizai 语言·意义·指称: 自主的意义与实在 (Autonomous Language: A Possible Theory of Meaning). By YE Chuang Content Type Journal Article Pages 170-172 DOI 10.1007/s11466-011-0132-8 Authors Yi Jiang, School of Philosophy and Sociology, Beijing Normal University, Beijing, 100875 China Journal Frontiers of Philosophy in China Online ISSN 1673-355X Print ISSN 1673-3436 Journal Volume Volume 6 Journal Issue Volume 6, Number 1.

The paper elaborates upon various points and arguments in the author’s “A Priori Knowledge and the Scope of Philosophy” (Philosophical Studies, 1993), in which the author defends the autonomy of philosophy from the empirical sciences. It provides, for example, an extended defense of the modal reliabilist theory of basic evidence, including a new argument against evolutionary explanations of the reliability of intuitions. It also contains a fuller discussion of how to neutralize the threat of scientific essentialism to the autonomy (...) of philosophy. (shrink)

The former Queen of Science seems to be lacking both a specific subject and a particular method. Thus the need arises for intra- and metaphilosophical orientation – especially since the way philosophy sees itself stems from various influential schools and traditions whose mutual exchange is not as lively as one might have hoped. This volume of original essays brings together some of the protagonists of different metaphilosophical debates that have so far been led fairly independently of each other. The authors (...) discuss the question of both the possibility and the scope of philosophical knowledge under a variety of aspects, particularly: (1) a priori knowledge and the role of intuitions, (2) transcendental arguments, (3) analytic philosophy and its methods as well as (4) phenomenology and analytic philosophy. (shrink)

Quantum field theory (QFT) combines quantum mechanics with Einstein's special theory of relativity and underlies elementary particle physics. This book presents a philosophical analysis of QFT. It is the first treatise in which the philosophies of space-time, quantum phenomena, and particle interactions are encompassed in a unified framework. Describing the physics in nontechnical terms, and schematically illustrating complex ideas, the book also serves as an introduction to fundamental physical theories. The philosophical interpretation both upholds the reality of the (...) quantum world and acknowledges the irreducible cognitive elements in its representation. The interpretation is based on an analysis of our ways of thinking as the are embedded in the logical structure of QFT. The author argues that philosophical categories are significant only if they play active and essential roles in our knowledge and hence constitute part of the theories in actual use. Thus she regards physical theories as primary, extracts their categorical structure, and uses it to rethink key philosophical questions. Among the questions this book tries to answer are: What are the quantum properties independent of measurements? How do we refer to individual things in a continuous field? How do theories relate to objects? What are the general conditions of the world and of our ways of thinking that make possible our knowledge of the microscopic realm, which is so intangible and counterintuitive? As a penetrating analysis of vital themes in contemporary science, the book will engage the interest of students and professionals in physics and philosophy alike. (shrink)

In this paper I attempt to show, against certain versions of trope theory, that properties with analyzable particularity cannot be merely exactly similar: such properties are either particularized properties (tropes) that are dissimilar to every any other trope, or else universalized properties (universals). I argue that each of the most viable standard and nonstandard particularizers that can be employed to secure the numerical difference between exactly similar properties can only succeed in grounding the particularity of properties, that is, in (...) having properties be tropes, at the expense of ruling out the possibility of their exact similarity. Here are the four nonstandard particularizers that I examine: the genealogy of a property, the history of a property, the causal effects of a property, and the duration of a property. And here are the two standard particularizers that I examine: the bearer of a property, by which I mean either a bare particular or a spatiotemporal location, and the property itself, by which I mean that the property is self-particularized. In my concluding remarks, I explain that the only remaining hope for preserving the possibility of exactly similar tropes is regarding properties as primitively particular, and that this must mean not that properties are self-particularized but that they are particularized due to nothing. I close by arguing that this may not help trope theory after all. (shrink)

Peter Carruthers has recently argued for a surprising conditional: if a global workspace theory of phenomenal consciousness is both correct and fully reductive, then there are no substantive facts to discover about phenomenal consciousness in nonhuman animals. I present two problems for this conditional. First, it rests on an odd double-standard about the ordinary concept of phenomenal consciousness: its intuitive non-gradability is taken to be unchallengeable by future scientific developments, whereas its intuitive determinacy is predicted to fall by the (...) wayside. Second, it relies on dismissing, prematurely, the live empirical possibility that phenomenal consciousness may be linked to a core global broadcast mechanism that is shared by a wide range of animals. Future developments in the science of consciousness may lead us to reconsider the non-gradability of phenomenal consciousness, but they are unlikely to lead us to accept that there are no facts to discover outside the paradigm case of a healthy adult human. (shrink)

A Naive Realist Theory of Colour defends the view that colours are mind-independent properties of things in the environment, that are distinct from properties identified by the physical sciences. This view stands in contrast to the long-standing and wide-spread view amongst philosophers and scientists that colours don't really exist - or at any rate, that if they do exist, then they are radically different from the way that they appear. It is argued that a naive realist theory of (...) colour best explains how colours appear to perceiving subjects, and that this view is not undermined either by reflecting on variations in colour perception between perceivers and across perceptual conditions, or by our modern scientific understanding of the world. A Naive Realist Theory of Colour also illustrates how our understanding of what colours are has far-reaching implications for wider questions about the nature of perceptual experience, the relationship between mind and world, the problem of consciousness, the apparent tension between common sense and scientific representations of the world, and even the very nature and possibility of philosophical inquiry. (shrink)

Possibilities for critical social theory and Foucault’s work: a toolbox approach The benefits and constraints of philosophical frameworks using the work of Michel Foucault and critical social theorists, such as Fay, Giroux and McLaren, are examined in the light of their traditions. The reasons nurse researchers adopt these frameworks are explored, as are the tensions between the respective theories. A complementary ‘toolbox’ approach to the research process addresses some of the theoretical and methodological challenges presented by each framework. Such (...) an approach provides distinctive insights into nursing practice that the other has ignored or missed. It is argued that by converging the two frameworks into a toolbox approach, it is possible to examine or deconstruct existing practices, whilst also providing an avenue for nurses to reconstruct or change such practices. (shrink)

The function of a trait token is usually defined in terms of some properties of other (past, present, future) tokens of the same trait type. I argue that this strategy is problematic, as trait types are (at least partly) individuated by their functional properties, which would lead to circularity. In order to avoid this problem, I suggest a way to define the function of a trait token in terms of the properties of the very same trait token. To able to (...) allow for the possibility of malfunctioning, some of these properties need to be modal ones: a function of a trait is to do F just in case its doing F would contribute to the inclusive fitness of the organism whose trait it is. Function attributions have modal force. Finally, I explore whether and how this theory of biological function could be modified to cover artifact function. (shrink)

Why is there a long-standing debate about paraphrase in poetry? Everyone agrees that paraphrase can be useful; everyone agrees that paraphrase is no substitute for the poem itself. What is there to disagree about? Perhaps this: whether paraphrase can specify everything that counts as a contribution to the meaning of a poem. There are, we say, two ways to take the question; on one way of taking it, the answer is that paraphrase cannot. Does this entail that there is meaning (...) mysteriously locked in a poem, meaning that cannot be represented in any way other than via the poem itself? If that were so it would have profound implications for poetry’s capacity to convey insight. We suggest reasons for thinking that the entailment does not hold. Throughout, we connect the traditional debate over paraphrase, which has largely been conducted within the fields of philosophy and literary theory, with recent empirically oriented thinking about the communicability of meaning, represented by work in pragmatics. We end with a suggestion about what is to count as belonging to meaning, and what as merely among the things that determine meaning. (shrink)

When we watch movies, or are tricked by a trompe-l'oeil painting, we seem to be visually representing possible worlds; often non-actual possible worlds. This suggests that we really can visually represent possible worlds. The suggested claim is refined and developed here into a theory of visual experience that holds that all visual experiences, both veridical and non-veridical, represent possible worlds, many of which are non-actual.

A Benacerraf–Field challenge is an argument intended to show that common realist theories of a given domain are untenable: such theories make it impossible to explain how we’ve arrived at the truth in that domain, and insofar as a theory makes our reliability in a domain inexplicable, we must either reject that theory or give up the relevant beliefs. But there’s no consensus about what would count here as a satisfactory explanation of our reliability. It’s sometimes suggested that (...) giving such an explanation would involve showing that our beliefs meet some modal condition, but realists have claimed that this sort of modal interpretation of the challenge deprives it of any force: since the facts in question are metaphysically necessary and so obtain in all possible worlds, it’s trivially easy, even given realism, to show that our beliefs have the relevant modal features. Here I show that this claim is mistaken—what motivates a modal interpretation of the challenge in the first place also motivates an understanding of the relevant features in terms of epistemic possibilities rather than metaphysical possibilities, and there are indeed epistemically possible worlds where the facts in question don’t obtain. (shrink)

Foucault and Sellars are representatives of conflicting philosophical traditions: whereas Foucault famously insisted that “power is everywhere,” Sellars proposed the well-known scientia mensura dictum. The tension between the two perspectives seems to be so strong that each of them ends up reducing the other to an epiphenomenal illusion. In this article, I shall attempt to show that the works of Sellars and Foucault are not necessarily irreconcilable. The common ground for this dialogue is what I shall define as a historico-practical (...) conception of science. I will build this concept by tracing a connection between the Foucauldian notion of “conditions of possibility” of science and Sellars’s thesis about the “indispensability” of the manifest image. Finally, I will argue that this conception of science problematizes the clash between the scientific and manifest images of the world, paving the way for a different relationship between naturalism and critical theory. (shrink)

One of the central problems in philosophy of artificial life (AL) is whether the artificial life entities we create can be genuine life. Proponents of strong AL believe that the artificial life entities exhibiting characteristics of natural life in a physical or a virtual environment can be real life. Opponents of strong artificial life, however, think that artificial life entities are not real life or just simulation of natural life. The aim of this paper is to demonstrate which view of (...) strong artificial life is valid. The method is to use philosophical theory and logics to analyze the opponents’ arguments. The conclusion is that the opponents’ arguments for denying strong AL are insufficient to exclude the possibility of strong AL. (shrink)

In this paper I attempt to show, against certain versions of trope theory, that properties with analyzable particularity cannot be merely exactly similar: such properties are either particularized properties (tropes) that are dissimilar to every any other trope, or else universalized properties (universals). I argue that each of the most viable standard and nonstandard particularizers that can be employed to secure the numerical difference between exactly similar properties can only succeed in grounding the particularity of properties, that is, in (...) having properties be tropes, at the expense of ruling out the possibility of their exact similarity. Here are the four nonstandard particularizers that I examine: the genealogy of a property, the history of a property, the causal effects of a property, and the duration of a property. And here are the two standard particularizers that I examine: the bearer of a property, by which I mean either a bare particular or a spatiotemporal location, and the property itself, by which I mean that the property is self-particularized. In my concluding remarks, I explain that the only remaining hope for preserving the possibility of exactly similar tropes is regarding properties as primitively particular, and that this must mean not that properties are selfparticularized but that they are particularized due to nothing. I close by arguing that this may not help trope theory after all. (shrink)

The main conclusion of Herman Philipse’s God in the Age of Science? is that we should all be atheists. Remarkably, however, the book contains no argument whatsoever for atheism. Philipse defends the argument from evil and the argument from divine hiddenness, but those arguments count only against an omnibenevolent and omnipotent God, not against just any god. He also defends the claim that there cannot be any bodiless spirits, but, of course, not all religions take their gods to be bodiless. (...) However, because his main tar- get of criticism is monotheism and adherents of monotheism usually claim that God is a bodiless spirit, this paper discusses Philipse’s arguments against the existence of a bodiless spirit. I argue that his three main claims about religious belief in a bodiless spirit are false. First, contrary to what he says, there is good reason to think that the expression “bodiless spirit” is meaningful. Among other things, the Wittgensteinian semantic theory of psychological attribute ascription on which his argument relies turns out to be untenable. Second, Philipse’s thesis that the existence of a bodiless spirit is impossible is also problematic. We can properly use the word person for bodiless spirits. Also, an attribute such as presence or omnipresence can be understood metaphorically without the definition of “God “thereby losing too much meaning. And we do not need any criterion for diachronic personal identity of bodiless spirits; such identity may very well be a primitive fact. Third and finally, there is no reason to think that the existence of a bodiless spirit is improbable. The fact that science has discovered a dependence relation between mental states and brain states and the fact that science has never been able to detect bodiless spirits provide no reason to think otherwise. (shrink)

Philosophy & Social Criticism, Ahead of Print. Foucault and Sellars are representatives of conflicting philosophical traditions: whereas Foucault famously insisted that “power is everywhere,” Sellars proposed the well-known scientia mensura dictum. The tension between the two perspectives seems to be so strong that each of them ends up reducing the other to an epiphenomenal illusion. In this article, I shall attempt to show that the works of Sellars and Foucault are not necessarily irreconcilable. The common ground for this dialogue is (...) what I shall define as a historico-practical conception of science. I will build this concept by tracing a connection between the Foucauldian notion of “conditions of possibility” of science and Sellars’s thesis about the “indispensability” of the manifest image. Finally, I will argue that this conception of science problematizes the clash between the scientific and manifest images of the world, paving the way for a different relationship between naturalism and critical theory. (shrink)

Philosophers of quantum mechanics have generally addressed exceedingly simple systems. Laura Ruetsche offers a much-needed study of the interpretation of more complicated systems, and an underexplored family of physical theories, such as quantum field theory and quantum statistical mechanics, showing why they repay philosophical attention. She guides those familiar with the philosophy of ordinary QM into the philosophy of 'QM infinity', by presenting accessible introductions to relevant technical notions and the foundational questions they frame--and then develops and defends answers (...) to some of those questions. Finally, Ruetsche highlights ties between the foundational investigation of QM infinity and philosophy more broadly construed, in particular by using the interpretive problems discussed to motivate new ways to think about the nature of physical possibility and the problem of scientific realism. (shrink)

David Armstrong's book is a contribution to the philosophical discussion about possible worlds. Taking Wittgenstein's Tractatus as his point of departure, Professor Armstrong argues that nonactual possibilities and possible worlds are recombinations of actually existing elements, and as such are useful fictions. There is an extended criticism of the alternative-possible-worlds approach championed by the American philosopher David Lewis. This major work will be read with interest by a wide range of philosophers.

Many theories assimilate the idioms of modality to those of quantification; they hold that so-and-so is possible iff there is a "world" at which it is true that so-and-so. "Modal realism" identifies worlds with certain concrete particulars, and truth at a world with what is true of it. Rival "ersatz" theories identify worlds with certain abstract entities and identify what is true at them with what they represent. ;David Lewis argues that pre-theoretic modal intuitions are best explained by modal realism. (...) I try to make a case for ersatzism. ;First, I argue that modal realism is flawed on the grounds that it entails the impossibility of certain intuitively possible spatiotemporal structures; it fails to explain fully even those intuitions with which it is compatible; and it renders the origin of modal knowledge mysterious. ;Next, I argue that objections to ersatzism are not conclusive. ;Lewis objects that even a generic version of ersatzism requires an unnameable and maybe unintelligible primitive relation. I suggest that the problems with naming are perfectly general; they have nothing to do with metaphysical theories of modality in particular. And I suggest a solution taken from Lewis himself. I also argue that any purported unintelligibility is due to illegitimately assimilating the relation to spatiotemporal relations. ;Finally, I consider some difficulties with a version of ersatzism that aims to reduce modality to impure set-theory. One concerns the accommodation of intuitions about properties that are not, but might have been, instantiated. Another concerns accommodation of intuitions about relations of exclusion and entailment among properties. I suggest that these difficulties are due to faulty assumptions about the nature of properties rather than any fundamental flaws in this ersatz approach. So I propose an account of properties that when incorporated into ersatzism circumvents these difficulties and allows it to claim the advantages of modal realism without its drawbacks. Unlike traditional accounts, this takes the essence of a property to consist in its role in imposing a certain classificational structure on the particulars that instantiate it, rather than in any unique and irreducible "quiddity". (shrink)

The focus on discourse and communication in the recent sociology of scientific knowledge offers new perspectives for an integration of qualitative and quantitative approaches in science studies. The common point of interest is the question of how reflexive communication systems communicate. The elaboration of the mathematical theory of communication into a theory of potentially self-organizing entropical systems enables us to distinguish the various layers of communication, and to specify the dynamic changes in these configurations over time. For example, (...) a paradigmatic discourse can be considered as a virtual communication system at the supra-individual level. Communication systems, however, cannot be directly observed. One observes only their instantaneous operations. The reflexive analyst is able to attribute the observed uncertainty to hypothesized systems that interact in the events. The implications of this perspective for various programmes in the sociology of scientific knowledge are discussed. (shrink)

The aggregation of individual judgments over interrelated propositions is a newly arising field of social choice theory. I introduce several independence conditions on judgment aggregation rules, each of which protects against a specific type of manipulation by agenda setters or voters. I derive impossibility theorems whereby these independence conditions are incompatible with certain minimal requirements. Unlike earlier impossibility results, the main result here holds for any (non-trivial) agenda. However, independence conditions arguably undermine the logical structure of judgment aggregation. I (...) therefore suggest restricting independence to premises, which leads to a generalised premise-based procedure. This procedure is proven to be possible if the premises are logically independent. (shrink)