"This book constitutes the proceedings of the 1994 European Workshop on Logics in Artificial Intelligence, held at York, UK in September 1994. The 24 papers presented were selected from a total of 79 submissions; in addition there are two abstracts of invited talks and one full paper of the invited presentation by Georg Gottlob. The papers point out that, with the depth and maturity of formalisms and methodologies available in AI today, logics provide a formal basis for the study of (...) the whole field of AI. The volume offers sections on nonmonotonic reasoning, automated reasoning, logic programming, knowledge representation, and belief revision."--PUBLISHER'S WEBSITE. (shrink)

How can we talk meaningfully about the past if it does not exist to be talked about? What gives time its direction? Is time travel possible? This defence of presentism - the view that only the present exists - makes an original contribution to a fast growing and exciting debate.

We describe a model of iterated belief revision that extends the AGM theory of revision to account for the effect of a revision on the conditional beliefs of an agent. In particular, this model ensures that an agent makes as few changes as possible to the conditional component of its belief set. Adopting the Ramsey test, minimal conditional revision provides acceptance conditions for arbitrary right-nested conditionals. We show that problem of determining acceptance of any such nested conditional can be reduced (...) to acceptance tests for unnested conditionals. Thus, iterated revision can be accomplished in a "virtual" manner, using uniterated revision. (shrink)

In the pages of philosophy journals debate rages these days between "political" and "comprehensive liberals," a debate inaugurated by John Rawls’s seminal 1985 paper entitled "Justice as Fairness: Political not Metaphysical," from which the above quotation is drawn. As the quotation suggests, a political liberal is someone who believes that liberal justice should be defined and defended in terms that are independent of "comprehensive" philosophical and religious doctrines, that is, independent of doctrines that purport to describe, in some comprehensive way, (...) the sources of meaning, purpose, and worth in human life. A comprehensive liberal, by contrast, is someone who believes some such comprehensive doctrine must be invoked in defense of liberal justice. In this debate it is perhaps fair to say that political liberals have the more prestigious roll call, for in addition to Rawls, prominent political liberals include Thomas Nagel, Brian Barry, Ronald Dworkin, Charles Larmore, and Bruce Ackerman. (shrink)

Most of us would want to say that it is true that Socrates taught Plato. According to realists about past facts,1 this is made true by the fact that there is, located in the past, i.e., earlier than now, at least one real event that is the teaching of Plato by Socrates. Presentists, however, in denying that past events and facts exist2 cannot appeal to such facts to make their past-tensed statements true. So what is a presentist to do?

For the generalizations of thermodynamics to obtain, it appears that a very ‘special’ initial condition of the universe is required. Is this initial condition itself in need of explanation? I argue that it is not. In so doing, I offer a framework in which to think about ‘special’ initial conditions in all areas of science, though I concentrate on the case of thermodynamics. I urge the view that it is not always a serious mark against a theory that it must (...) posit an ‘improbable’ initial condition. (shrink)

Personification has received little philosophical attention, but Daniel Nolan has recently argued that it has important ramifications for the relationship between fictional representation and possibility. Nolan argues that personification involves the representation of metaphysically impossible identities, which is problematic for anyone who denies that fictions can have impossible content. We develop an account of personification which illuminates how personification enhances engagement with fiction, without need of impossible content. Rather than representing an identity, personification is something that is done with representations—a (...) matter of use rather than content—and involves only a comparison of possibilities. We illustrate our account using the personification of death in the film Meet Joe Black, and show that there are no grounds for taking it to be fictionally true that there is a metaphysically impossible identity between Death and death. (shrink)

Imprint covered by label which reads : Barnes & Noble Books, Totowa, N.J. Includes bibliographical references and index.

In this outstanding reinterpretation - and extension - of the Critical Theory tradition, Craig Calhoun surveys the origins, fortunes and prospects of this most influential of theoretical approaches. Moving with ease from the early Frankfurt School to Habermas, to contemporary debates over postmodernism, feminism and nationalism, Calhoun breathes new life into Critical Social Theory, showing how it can learn from the past and contribute to the future.

This paper considers the possibility that nonrelativistic quantum mechanics tells us that Nature cares about time reversal. In a classical world we have a fundamentally reversible world that appears irreversible at higher levels, e.g., the thermodynamic level. But in a quantum world we see, if I am correct, a fundamentally irreversible world that appears reversible at higher levels, e.g., the level of classical mechanics. I consider two related symmetries, time reversal invariance and what I call ‘Wigner reversal invariance.’ Violation of (...) the first is interesting, for not only would it fly in the face of the usual story about temporal symmetry, but it also appears to imply (as I’ll explain) that time is ‘handed’, or as some have misleadingly said in the literature, ‘anisotropic’. Violation of the second is, as I hope to show, even more interesting. The paper also contains a discussion of two mostly neglected topics: what it means to say time is handed and what warrants such an attribution to time. (shrink)

Many believe that quantum mechanics makes the world hospitable to the tensed theory of time. Quantum mechanics is said to rescue the significance of the present moment, the mutability of the future and possibly even the whoosh of time’s flow. It allegedly does so in two different ways: by making a preferred foliation of spacetime into space and time scientifically respectable, and by wavefunction collapse injecting temporal ‘becoming’ into the world. The aim of this paper is to show that the (...) reasoning underlying these claims is wishful thinking. Against the first claim I develop what I call the “coordination problem” for tensers. The upshot of this problem is that if tensers escape the threat of relativity, they do so only by embracing conflict with the branch of physics they believed saved them, quantum mechanics. I then step back from the fray and examine some methodological issues, concluding that scientific methodology will always be “against” tenses as they are currently conceived. The Appendix deals with the confused tangle of issues linking wavefunction collapse to an open future. (shrink)

In a classical mechanical world, the fundamental laws of nature are reversible. The laws of nature treat the past and future as mirror images of each other. Temporally asymmetric phenomena are ultimately said to arise from initial conditions. But are the laws of nature also reversible in a quantum world? This paper argues that they are not, that time in a quantum world prefers a particular 'hand' or ordering. I argue, first, that the probabilistic algorithm used in the theory picks (...) out a preferred direction of time for almost all interpretations of the theory, and second, that contrary to the received wisdom the Schr?dinger evolution is also irreversible. The status of Wigner reversal invariance is then discussed. I conclude that the quantum world is fundamentally irreversible, but manages to appear (thanks to Wigner reversal invariance) reversible at the classical level. (shrink)

Public debate on nanotechnology is a large topic within governments, research agencies, industry and non-government organisations. But depending who you talk to the perception of what the public thinks about nanotechnology can be very varied. To define coherent policy and to invest in research and development that aligns with public preferences, needs more than just perceptions of public perceptions. Public attitude studies are vital in understanding what the public really think, but they need to go further than simplistic polling and (...) should examine factors such as changes over time, drivers of attitude change, different attitudes to different applications and be supported by qualitative data. This paper summarises the findings of a three year tracking study of public attitudes towards nanotechnology, highlighting both concerns and aspirations for nanotechnology and discusses the impacts of that data on public engagement programs. (shrink)

This essay argues that the “republicanism versus liberalism” debate that came to prominence in the 1980s was largely an artificial construction made possible by the recent genealogies of its constituent terms. The first section suggests that the idea of “early modern liberalism” took shape from the 1930s, and identifies three broad schools of thought: Marxist, democratic and classical. Despite their differences, they pioneered a stereotype of “liberalism” that was well established – especially in the United States – by the 1950s. (...) The second section examines the so-called “republican tradition,” arguing it did not acquire that identity until the early 1970s, and that earlier work excavating the “commonwealth tradition” did not intend it as an alternative to liberalism. That only came into focus as a result of Wood’s work. The third section looks at elements of the debate in the 1970s, stressing the attempt to displace Locke and exploring the contribution of Pocock. He increasingly argued for the complex and interwoven nature of both “republicanism” and “liberalism,” partly as a response to revisionist work on the natural law origins of liberalism. By contrast, Appleby restated the older “liberalism” and pitted it against “republicanism,” thereby reinforcing the binary. (shrink)

Hierarchy has been a central concern of work on the modern political imaginary. The need to elucidate hierarchy’s deeper sources and its legitimations were some of the motivations behind Cornelius Castoriadis’ development of the notion of the imaginary. The work of Claude Lefort on the political imaginary similarly commences from a critical analysis of the hierarchical form of bureaucracy and its place in the constitution of totalitarian political regimes. In a different vein, Charles Taylor’s conception of the imaginary details a (...) long-term process of the erosion of preceding forms of hierarchy and their justifications. In the contemporary period, the opposition to hierarchy has penetrated organisations and institutions that had previously been shaped by it, like the family, the capitalist firm, the school, and the political movement. Despite the potentials that these initiatives suggest of a change in the political imaginary, it will be argued that forms of hierarchy have, to varying degrees, been reconstituted and that the problem of hierarchy appears in new ideological forms, both with respect to institutionalised power and the legitimating justifications for how things are organised. The critique of hierarchy was once associated with the radical democratic imaginary, however, there have recently been perverse mobilisations. (shrink)

The relatively new field of evolutionary developmental biology continues to attract considerable attention from biologists, philosophers, and historians, in part, because work in this field demonstrates that important changes are underway within biology. Though studies of development and evolution were closely connected during the 19th century, continued work in genetics fostered a general split between the two during the first decades of the twentieth century (e.g., Allen 1978; Gilbert 1978; Mayr and Provine 1980; Gilbert, Opitz and..

This paper explores ethical issues relating to the management of patients who are terminally ill and unable to maintain their own nutrition and hydration. A policy of sedation without hydration or nutrition is used in palliative medicine under certain circumstances. The author argues that this policy is dangerous, medically, ethically and legally, and can be disturbing for relatives. The role of the family in management is discussed. This issue requires wide debate by the public and the profession.

This paper explores whether DICTION text analysis software reveals distinctive language markers of a verbal tone of hubris in annual letters to shareholders signed by CEOs of major companies. We analyze 193 letters to shareholders, comprising about 368,000 words, focusing initially on 23 letters signed by CEOs who are alleged to be hubristic: Browne, Goodwin, and Murdoch. Their language use is statistically significantly high in terms of the DICTION master variable, REALISM. Based on further analysis, we contend that language high (...) in REALISM is not a distinctive marker of hubris but is likely to be a genre effect that is common in CEO letters to shareholders. We draw attention to the restricted capacity of DICTION to capture subtlety of language in CEO letters to shareholders. (shrink)

While citizens often use non-instrumental arguments to support environmental protection, most governmental policies are justified by instrumental arguments. This paper explores some of the reasons. We interviewed senior policy advisors to four European governments active in global climate change negotiations and the UNCED (United Nations Conference on Environment and Development) process. In response to our questions, a majority of these advisors articulated deeply held personal environmental values. They told us that they normally keep these values separate from their professional environmental (...) policy activities. We interpret these findings within the context of the literature on environmental ethics and values. We suggest that environmental policy could be improved if widely held environmental values were articulated, validated, and admitted into the process of policy analysis and deliberation. (shrink)

Immanent critique has been a defining feature of the programme of critical social theory. It is a methodology that underpins theoretical diagnoses of contemporary society, based on its linking normative and empirical modes of analysis. Immanent critique distinctively seeks to discern emancipatory or democratizing tendencies. However, the viability of immanent critique is currently in question. Habermas argued that it was necessary to revise the normative foundations of critical social theory, late-capitalist developments tended to undermine immanent critique. Although there is a (...) need for critical social theory to incorporate aspects of alternative interpretations of the contemporary period, the logics of influential theoretical perspectives on the present, especially postmodernism, the risk society and globalization, will be shown to be inconsistent with some of immanent critique's presuppositions. The synthetic aspirations of critical social theory nevertheless persist in recent attempts to reconcile positive liberty and social justice. (shrink)

In 1945, Michael Polanyi achieved, in Full Employment and Free Trade, the integration of Keynesian and monetarist economics that the economics profession did not ahieve until the 1970s. In yet another field, Polanyi saw the heart of important matters long before anyone else.

My paper argues that Luc Boltanski’s pragmatic sociology makes an important contribution to two central concerns of critical theory: the empirical analysis of the contradictions and conflicts of capitalist societies and the reflexive clarification of the epistemological and normative grounds of critique. I show how Boltanski’s assessment of the limitations of Bourdieu’s critical sociology significantly influenced his pragmatic sociology of critique and explication of the political philosophies present in actors’ practices of dispute and justification. Although pragmatism has revealed how social (...) life involves considerable uncertainty, Boltanski contends that critique needs to take into account how institutions generate semantic security, as well as symbolic violence. Boltanski’s endeavour to reformulate critique is compared with influential alternative conceptions, notably those of Habermas, Castoriadis, and Honneth. Despite its potential deficiencies and weaknesses, Boltanski’s reformulation of critique is found to be of considerable theoretical significance. In particular, Boltanski’s analysis of the role critique has played in the reorganization of capitalism can be extended, and his work is suggestive of how some of the intentions of critical theory can be pursued in new ways. (shrink)

Leibniz's conceptual containment theory says that singular propositions of the form a is F are true when the complete concept of being a contains the concept of being F. In this paper, I provide a new semantics for first-order logic built around this idea. The semantics resolves longstanding problems for Leibniz's theory and can represent, without possible worlds, both hyperintensional distinctions among properties and a certain kind of presumably impossible situation that standard approaches cannot represent. The semantics also captures the (...) strong soundness and completeness of classical first-order logic. (shrink)

How did Christ's death overcome the estrangement and condemnation of sinners before a holy God, so as to reconcile them to Him? A great variety of theories of the atonement have been offered over the centuries to make sense of the fact that Christ by his death has provided the means of reconciliation with God: ransom theories, satisfaction theories, moral influence theories, penal substitution theories, and so on. Competing theories need to be assessed by their accord with biblical data and (...) their philosophical coherence. (shrink)

This essay presents ecosemiotics as an approach to interpreting Heidegger in environmental philosophy. Comparisons between Heidegger’s philosophy and ecosemiotics have often focused on the 1929–1930 lecture course where Heidegger discusses Jakob von Uexküll’s notion of Umwelt. These and other ecological interpretations reach an impasse with the sharp ontological boundary Heidegger places between Dasein and more-than-human lifeforms. This essay revisits the theme by focusing on a central concept from Heidegger’s later work: enframing [Gestell]. Enframing, it is argued, can be understood as (...) a rupture between human (cultural) and natural signs, which is a consequence of technological modernity. Although this interpretation diverges from Heidegger’s philosophy, such critical readings may be necessary if Heidegger’s work is to speak to today’s technologies and ecological issues. (shrink)

Lyons and Whelan provide a useful list of recommendations as to how community engagement on nanotechnology could be improved, which very few people working in community engagement could disagree with. However, as the conclusions of any study are dependent on the data obtained, if more data had been obtained and analysed then different conclusions might have been reached. Addressing the key issues in the paper and providing more data, also allows an opportunity to expand on current issues relating to community (...) engagement on nanotechnology and the challenges it provides for practitioners. (shrink)

Some platonists truly agonize over the ontological commitments which their platonism demands of them. Peter van Inwagen, for example, confesses candidly,I am happy to admit that I am uneasy about believing in the existence of ‘causally irrelevant’ objects. The fact that abstract objects, if they exist, can be neither causes or [sic] effects is one of the many features of abstract objects that make nominalism so attractive. I should very much like to be a nominalist, but I don't see how (...) to be one …. (shrink)

The history of Scottish philosophy in the nineteenth century is written by migrant philosophers attempting to use the Scottish tradition as the foundation for philosophy in their new homelands. In the accounts of John Clark Murray , James McCosh and Henry Laurie , different evaluations are made of the continuing relevance of the Scottish Common Sense School, but all are committed Christians for whom David Hume cannot be part of a Scottish tradition. As a result, none of these accounts gives (...) any suggestion of there having been a ‘Scottish Enlightenment’. That concept was only made possible by the radical reinterpretation of Hume by Norman Kemp Smith, which linked his philosophy to Hutcheson and dismissed his opposition to Reid. The subsequent emergence of ‘the Scottish Enlightenment’ eclipsed nineteenth-century Scottish ‘idealism’, shaped by Edward Caird, which Murray, Laurie and Kemp Smith had regarded as the foundation of their own philosophies. (shrink)

El artículo trata sobre el 'reavivamiento hermeneútico' de Agustín, es decir, acerca de la significación filosófica que tiene el influjo histórico y metodológico de san Agustín sobre la obra de Martin Heidegger "Sein und Zeit", y cómo esto se ha vuelto más evidente con las aportaciones de fenomenólogos y patrólogos, especialmente a partir de 1993.