This paper concerns the question of how to draw inferences common sensically from uncertain knowledge. Since the early work of Shore and Johnson (1980), Paris and Vencovská (1990), and Csiszár (1989), it has been known that the Maximum Entropy Inference Process is the only inference process which obeys certain common sense principles of uncertain reasoning. In this paper we consider the present status of this result and argue that within the rather narrow context in which we work this complete (...) and consistent mode of uncertain reasoning is actually characterised by the observance of just a single common sense principle (or slogan). (shrink)

The logical consequence relations η▹η provide a very attractive way of inferring new facts from inconsistent knowledge bases without compromising standards of credibility. In this short note we provide proof theories and completeness theorems for these consequence relations which may have some applicability in small examples.

This paper corrects three widely held misunderstandings about Maxent when used in common sense reasoning: That it is language dependent; That it produces objective facts; That it subsumes, and so is at least as untenable as, the paradox-ridden Principle of Insufficient Reason.

Can one extend crisp Peano arithmetic PA by a possibly many-valued predicate Tr(x) saying “xis true” and satisfying the “dequotation schema”for all sentences φ? This problem is investigated in the frame of Łukasiewicz infinitely valued logic.

We consider two formalizations of the notion of irrelevance as a rationality principle within the framework of (Carnapian) Inductive Logic: Johnson's Sufficientness Principle, JSP, which is classically important because it leads to Carnap's influential Continuum of Inductive Methods and the recently proposed Weak Irrelevance Principle, WIP. We give a complete characterization of the language invariant probability functions satisfying WIP which generalizes the Nix-Paris Continuum. We argue that the derivation of two very disparate families of inductive methods from alternative perceptions (...) of 'irrelevance' is an indication that this notion is imperfectly understood at present. (shrink)

A necessary and sufficient condition in terms of a de Finetti style representation is given for a probability function in Polyadic Inductive Logic to satisfy being part of a Language Invariant family satisfying Spectrum Exchangeability. This theorem is then considered in relation to the unary Carnap and Nix–Paris Continua.

We investigate uncertain reasoning with quantified sentences of the predicate calculus treated as the limiting case of maximum entropy inference applied to finite domains.

Can one extend crisp Peano arithmetic PA by a possibly many-valued predicate Tr(x) saying "x is true" and satisfying the "dequotation schema" $\varphi \equiv \text{Tr}(\bar{\varphi})$ for all sentences φ? This problem is investigated in the frame of Lukasiewicz infinitely valued logic.

Rational Pavelka logic extends Lukasiewicz infinitely valued logic $by adding truth constants \bar{r} for rationals in [0, 1].$ We show that this is a conservative extension. We note that this shows that provability degree can be defined in Lukasiewicz logic. We also give a counterexample to a soundness theorem of Belluce and Chang published in 1963.

Rational Pavelka logic extends Lukasiewicz infinitely valued logic by adding truth constants r̄ for rationals in [0, 1]. We show that this is a conservative extension. We note that this shows that provability degree can be defined in Lukasiewicz logic. We also give a counterexample to a soundness theorem of Belluce and Chang published in 1963.

This paper investigates the quantifier "there exist unboundedly many" in the context of first-order arithmetic. An alternative axiomatization is found for Peano arithmetic based on an axiom schema of regularity: The union of boundedly many bounded sets is bounded. We also obtain combinatorial equivalents of certain second-order theories associated with cuts in nonstandard models of arithmetic.

We argue in favour of identifying one aspect of rational choice with the tendency to conform to the choice you expect another like-minded, but non-communicating, agent to make and study this idea in the very basic case where the choice is from a non-empty subset K of 2 A and no further structure or knowledge of A is assumed.

We give a brief account of some de Finetti style representation theorems for probability functions satisfying Spectrum Exchangeability in Polyadic Inductive Logic, together with applications to Non-splitting, Language Invariance, extensions with Equality and Instantial Relevance.

We prove that: • if there is a model of I∆₀ + ¬ exp with cofinal Σ₁-definable elements and a Σ₁ truth definition for Σ₁ sentences, then I∆₀ + ¬ exp +¬BΣ₁ is consistent, • there is a model of I∆₀ Ω₁ + ¬ exp with cofinal Σ₁-definable elements, both a Σ₂ and a ∏₂ truth definition for Σ₁ sentences, and for each n > 2, a Σ n truth definition for Σ n sentences. The latter result is obtained by (...) constructing a model with a recursive truth-preserving translation of Σ₁ sentences into boolean combinations of $\exists \sum {\begin{array}{*{20}{c}} h \\ 0 \\ \end{array} } $ sentences. We also present an old but previously unpublished proof of the consistency of I∆₀ + ¬ exp + ¬BΣ₁ under the assumption that the size parameter in Lessan's ∆₀ universal formula is optimal. We then discuss a possible reason why proving the consistency of I∆₀ + ¬ exp + ¬BΣ₁ unconditionally has turned out to be so difficult. (shrink)

A Russian in Paris -- Russian contexts -- Madmen -- The possessed -- Godmen -- The Hegel lectures -- The last revolution -- Time no more -- The book of the dead -- The later writings -- Nobodies -- Roads or ruins? -- Why finality? -- The grand inquisitor.

“A great story, full of twists and turns.... Careers made and ruined, departments torn apart, writing programs turned into sensitivity seminars, political witch hunts, public opprobrium, ignorant media attacks, the whole ball of wax. Read it and laugh or read it and weep. I can hardly wait for the movie.” —Stanley Fish, _Think Again, New York Times_ “In such a difficult genre, full of traps and obstacles, French Theory is a success and a remarkable book in every respect: it is (...) fair, balanced, and informed. I am sure this book will become the reference on both sides of the Atlantic.” —Jacques Derrida “The Atlantic Ocean has two sides, and so does French Theory. Reinvented in America and betrayed in its own country, it has become the most radical intellectual movement in the West with global reach, rewriting Marx in light of late capitalism. Breathtakingly moving back and forth between the two cultures, Francois Cusset takes us through a dazzling intellectual adventure that illuminates the past thirty years, and many more decades to come.” —Sylvere Lotringer During the last three decades of the twentieth century, a disparate group of radical French thinkers achieved an improbable level of influence and fame in the United States. Compared by at least one journalist to the British rock ‘n’ roll invasion, the arrival of works by Michel Foucault, Jacques Derrida, Jean-François Lyotard, Jean Baudrillard, Gilles Deleuze, and Félix Guattari on American shores in the late 1970s and 1980s caused a sensation. Outside the academy, “French theory” had a profound impact on the era’s emerging identity politics while also becoming, in the 1980s, the target of right-wing propagandists. At the same time in academic departments across the country, their poststructuralist form of radical suspicion transformed disciplines from literature to anthropology to architecture. By the 1990s, French theory was woven deeply into America’s cultural and intellectual fabric. French Theory is the first comprehensive account of the American fortunes of these unlikely philosophical celebrities. François Cusset looks at why America proved to be such fertile ground for French theory, how such demanding writings could become so widely influential, and the peculiarly American readings of these works. Reveling in the gossipy history, Cusset also provides a lively exploration of the many provocative critical practices inspired by French theory. Ultimately, he dares to shine a bright light on the exultation of these thinkers to assess the relevance of critical theory to social and political activism today-showing, finally, how French theory has become inextricably bound with American life. François Cusset, a writer and intellectual historian, teaches contemporary French thought in Paris at the Institut d’Etudes Politiques and at Columbia University’s Reid Hall. His books include Queer Critics and La Décennie. Jeff Fort is assistant professor of French at the University of California, Davis. He has translated works by Maurice Blanchot, Jean Genet, and Jean-Luc Nancy. (shrink)

The commonplace image of Heidegger is of a philosopher firmly rooted, not in the city of Freiburg in which much of his life was spent, but in the Alemannic-Schwabian countryside around the village of Messkirch in which he was born. It would seem that the distance between Heidegger and Benjamin, between Messkirch and Berlin or Paris could not be greater. But to what extent are Heidegger's own personal predilections for the provincial and the bauerlich actually tied to the philosophical (...) positions that he developed? Might it be the case that the city, perhaps even more than the countryside, has to play a central role in any serious attempt to think through the implications of Heidegger's thought of being? This presentation will explore how Heidegger might find h imself in Benjamin's city, and of the place of the city in Heidegger's own thought, with the aim of shedding light, not only on Heidegger's thought, but also on that of Benjamin himself. (shrink)

O lugar comum, no que tange à imagem de Heidegger, é a de um filósofo firmemente enraizado, não na cidade de Freiburg, na qual passou grande parte de sua vida, mas na região rural alemânico-suábia, nos arredores do povoado de Messkirch, onde nasceu. Poderia parecer que a distância entre Heidegger e Benjamin, entre Messkirch e Berlim, ou Paris, não poderia ser maior. Mas até que ponto estão as predileções pessoais de Heidegger pelo provinciano e o bauerlich de fato ligadas (...) às posições filosóficas que ele desenvolveu? Poderia ser este o caso, de que a cidade, talvez ainda mais do que o campo, devesse desempenhar um papel central em qualquer tentativa séria de se pensar até o fim as implicações do pensamento de Heidegger sobre o ser? Esta apresentação investigará como Heidegger se sentiria na cidade de Benjamin, bem como o lugar da cidade no pensamento do próprio Heidegger, com o propósito de lançar luz não apenas sobre o pensamento de Heidegger, mas também sobre o do próprio Benjamin.The commonplace image of Heidegger is of a philosopher firmly rooted, not in the city of Freiburg in which much of his life was spent, but in the Alemannic-Schwabian countryside around the village of Messkirch in which he was born. It would seem that the distance between Heidegger and Benjamin, between Messkirch and Berlin or Paris could not be greater. But to what extent are Heidegger's own personal predilections for the provincial and the bauerlich actually tied to the philosophical positions that he developed? Might it be the case that the city, perhaps even more than the countryside, has to play a central role in any serious attempt to think through the implications of Heidegger's thought of being? This presentation will explore how Heidegger might find himself in Benjamin's city, and of the place of the city in Heidegger's own thought, with the aim of shedding light, not only on Heidegger's thought, but also on that of Benjamin himself. (shrink)

We often evaluate belief-forming processes, agents, or entire belief states for reliability. This is normally done with the assumption that beliefs are all-or-nothing. How does such evaluation go when we’re considering beliefs that come in degrees? I consider a natural answer to this question that focuses on the degree of truth-possession had by a set of beliefs. I argue that this natural proposal is inadequate, but for an interesting reason. When we are dealing with all-or-nothing belief, high reliability leads to (...) high levels of truth-possession. However, when it comes to degrees of belief, reliability and truth-possession part ways. The natural answer thus fails to be a good way to evaluate degrees of belief for reliability. I propose and develop an alternative method based on the notion of calibration, suggested by Frank Ramsey, which does not have this problem and consider why we should care about such assessments of reliability even if they are not tied directly to truth-possession. (shrink)

This book provides an original and provocative combination of ethnomethodological analysis and the concepts of linguistic philosophy with a breadth and clarity unusual in this field of writing. It is designed to be read by sociologists, psychologists and philosophers and concerns itself with the contributions of Wittgenstein, defending the claim for his relevance to the human sciences. However, this book goes some way beyond the usual limitations of such interdisciplinary works by outlining some empirical applications of ideas derived from the (...) Wittgenstein tradition. (shrink)

I argue that Husserlian phenomenology is metaphysically neutral, in the sense of being compatible with multiple metaphysical frameworks. For example, though Husserl dismisses the concept of an unknowable thing in itself as “material nonsense”, I argue that the concept is coherent and that the existence of such things is compatible with Husserl’s phenomenology. I defend this metaphysical neutrality approach against a number of objections and consider some of its implications for Husserl interpretation.

A comprehensive study of the ethics of killing in cases in which the metaphysical or moral status of the individual killed is uncertain or controversial. Among those beings whose status is questionable or marginal in this way are human embryos and fetuses, newborn infants, animals, anencephalic infants, human beings with severe congenital and cognitive impairments, and human beings who have become severely demented or irreversibly comatose. In an effort to understand the moral status of these beings, this book develops and (...) defends distinctive accounts of the nature of personal identity, the evaluation of death, and the wrongness of killing. The central metaphysical claim of the book is that we are neither nonmaterial souls nor human organisms but are instead embodied minds. In ethical theory, one of the central claims is that the morality of killing is not unitary; rather, the principles that determine the morality of killing in marginal cases are different from those that govern the killing of persons who are self‐conscious and rational. Another important theme is that killing in marginal cases should be evaluated in terms of the impact it would have on the victim at the time rather than on the value of the victim's life as a whole. What primarily matters is how killing would affect that which would be rational for the victim to care about at the time of death. By appealing to various foundational claims about identity, death, and the morality of killing, this book yields novel conclusions about such issues as abortion, prenatal injury, infanticide, the killing of animals, the significance of brain death, the termination of life support in cases of persistent vegetative state, the use of anencephalic infants as sources of organs for transplantation, euthanasia, assisted suicide, and advance directives in cases of dementia. In particular, the book defends the moral permissibility of abortion, infanticide, and euthanasia in certain cases and argues that brain death is not the appropriate criterion of death either for a person or a human organism. (shrink)

An important issue in epistemology concerns the source of epistemic normativity. Epistemic consequentialism maintains that epistemic norms are genuine norms in virtue of the way in which they are conducive to epistemic value, whatever epistemic value may be. So, for example, the epistemic consequentialist might say that it is a norm that beliefs should be consistent, in that holding consistent beliefs is the best way to achieve the epistemic value of accuracy. Thus epistemic consequentialism is structurally similar to the family (...) of consequentialist views in ethics. Recently, philosophers from both formal epistemology and traditional epistemology have shown interest in such a view. In formal epistemology, there has been particular interest in thinking of epistemology as a kind of decision theory where instead of maximizing expected utility one maximizes expected epistemic utility. In traditional epistemology, there has been particular interest in various forms of reliabilism about justification and whether such views are analogous to—and so face similar problems to—versions of consequentialism in ethics. This volume presents some of the most recent work on these topics as well as others related to epistemic consequentialism, by authors that are sympathetic to the view and those who are critical of it. (shrink)

Although debate is a richly structured and prevalent form of discourse, it has received little scholarly attention. Logicians have focused on the structure of individual arguments-how they divide into premises and conclusions, which in turn divide into various constituents. In contrast, I focus on the structure of sets of arguments, showing how arguments are themselves constituents in high-level dialectical structures. I represent debates and positions by graphs whose vertices correspond to arguments and whose edges correspond to two inter-argument relations: "dispute" (...) and "support," respectively. On this basis I develop a theory of the structure of debate. (shrink)

Theories of the structure of affect make competing predictions about whether people can feel happy and sad at the same time. Considerable evidence that happiness and sadness can co-occur has accumulated in the past 15 years, but holes in the case remain. I describe those holes and suggest strategies for testing them in future research. I also explore the possibility that the case may never be closed, in part because the competing hypotheses may not be entirely falsifiable. Fortunately, hypotheses need (...) not be falsifiable to be useful. Research on mixed emotions has been generative and the body of research will continue to shed light on the structure of affect. (shrink)

This is the second in a series of two papers by the same author on organisational values. The first paper, in the previous issue of Philosophy of Management,1 showed how senior managers interpret texts to constitute organisational values. The research showed that organisational values are constituted through three hermeneutic circles — fragmentation/integration, conceptuality/contextuality and temporality — that provide an integrated medium for interpreting values. The three hermeneutic circles are mediated by a fourth: the tropological circle, where metaphor and homonymy fuse (...) horizons, and synecdoche and metonymy relate parts and whole. Both texts and tropes mediate the transvaluation of organisational values across time. The first paper reported the findings and built a theoretical framework, while this second paper builds on the theoretical and empirical work to consider the implications for management practice. (shrink)

A range of stakeholders are interested in organisational values, with demands from consumers, trade unions and pressure groups. Organisations face the challenge of integrating employees from several cultures and overcoming value differences. Coupled with this emphasis on organisational values there is increasing interest in the role of discourse in constituting meaning. This research shows how texts constitute organisational values. Hermeneutics is used to analyse the texts of the Open University and UK FTSE4good companies. The research shows that organisational values are (...) constituted through three hermeneutic circles — fragmentation/integration, conceptuality/contextuality and temporality — that provide an integrated medium for interpreting values. The three hermeneutic circles are mediated by a fourth: the tropological circle, where metaphor and homonymy fuse horizons, and synecdoche and metonymy relate parts and whole. Both texts and tropes mediate the transvaluation of organisational values across time. In recontextualising its values the organisation becomes a metaphor of itself. (shrink)

Aron Gurwitsch’s Gestalt-inspired “field theory of consciousness” was introduced in the same period as Wolfgang Köhler’s theory of “electrical brain fields.” I consider parallels between these theories, drawing on results that have emerged in the last five years. First, I consider the claim that fields of consciousness supervene on electromagnetic fields in the brain, then I outline Gurwitsch’s field theory of consciousness, and finally I consider how the structures described by Gurwitsch might relate to structures in the brain’s electro-magnetic field. (...) Along the way, I expose a dogma (that qualia are paradigmatic conscious states) and develop an interpretation of Gurwitsch’s field theory. (shrink)

This paper proposes that, in many cases, conversational norms permit gaslighting when socially subordinate speakers report systemic injustice. Section 1 introduces gaslighting and the kinds of cases on which I focus—namely, cases in which multiple people gaslight. I give examples and statistics to suggest that these cases are common in response to reports of race- or gender-based injustice; and I appeal to scholarship on epistemologies of ignorance to suggest that this kind of gaslighting is common because it is systematically produced (...) by dominant epistemic systems. Section 2 draws on Lynne Tirrell’s account of language games that’ve been influenced by oppression to make the case that conversational norms make gaslighting “appropriate” when socially subordinate speakers report systemic injustice. Together, these points make the case that the kind of gaslighting discussed in this paper (i) occurs systematically and (ii) is mutually reinforcing with systems of ignorance. The discussion is meant to help us understand and address the conditions that make gaslighting commonplace. If it’s true that gaslighting occurs systematically in part thanks to our warped conversational norms, then we may be able to mitigate the prevalence of gaslighting by attending to these norms. (shrink)

This book, originally published in 1989 discusses an issue central to all philosophical argument – the relation between persuasion and truth. The techniques of persuasion are indirect and not always fully transparent. Whether philosophers and theoreticians are for or against the use of rhetoric, they engage in rhetorical practice none the less. Focusing on Plato, Descartes, Kant, Kierkegaard, Nietzsche and Wittgenstein, this book uncovers philosophical rhetoric at work and reminds us of the rhetorical arena in which philosophical writings are produced (...) and considered. (shrink)

Jeff McMahan urges us to reject the view, dominant throughout history, that mere participation in an unjust war is not wrong.