In this paper we present a new modeling for belief revision that is what we term irrevocable. This modeling is of philosophical interest since it captures some features of suppositional reasoning, and of formal interest since it is closely connected with AGM, yet provides for iterated belief revision. The analysis is couched in terms of dynamic doxastic logic.

The book is about three things. First, how Ancient thinkers perceived humans as like or unlike other animals; second about the justification for taking a humane attitude towards natural things; and third about how moral claims count as true, and how they can be discovered or acquired. Was Aristotle was right to see continuity in the psychological functions of animal and human souls? The question cannot be settled without taking a moral stance. As we can either focus on continuity or (...) on discontinuities, how should natural science draw the boundaries? Moral agents act and react in a world that they see under a certain description, and there is no value free science that can settle what is the correct description. This book asks us to think about where moral justification could come from, and suggests that the supposed ‘moral status’ of the object cannot provide the answer. For the moral status of the object is a product of our own imagination, and once we see that, we also see that there remains the question where we ought to have the will to see it. Furthermore, since the perception of moral truth involves the development of imagination and will, the means to attain it will be better served by engagement with poetry and literature than with enquiries that seek to exclude the engagement of the imagination, or any appeal to the beauty of nature or the love of one's fellow creatures. (shrink)

We define prenormal modal logics and show that S1, S1, S0.9, and S0.9 are Lewis versions of certain prenormal logics, determination and decidability for which are immediate. At the end we characterize Cresswell logics and ponder C. I. Lewis's idea of strict implication in S1.

Why does philosophy give some people a headache, others a real buzz, and yet others a feeling that it is subversive and dangerous? Why do a lot of people think philosophy is totally irrelevant? What is philosophy anyway? The ABCs of philosophy??—easy to understand but never simplistic. Beginning with basic questions posed by the ancient Greeks - What is knowledge? What is good and evil? Philosophy For Beginners traces the answers given by western philosophy over the last 2,500 years.

Transplantation continues to push the frontiers of medicine into domains that summon forth troublesome ethical questions. Looming on the frontier today is human facial transplantation. We develop criteria that, we maintain, must be satisfied in order to ethically undertake this as-yet-untried transplant procedure. We draw on the criteria advanced by Dr. Francis Moore in the late 1980s for introducing innovative procedures in transplant surgery. In addition to these we also insist that human face transplantation must meet all the ethical requirements (...) usually applied to health care research. We summarize the achievements of transplant surgery to date, focusing in particular on the safety and efficacy of immunosuppressive medications. We also emphasize the importance of risk/benefit assessments that take into account the physical, aesthetic, psychological, and social dimensions of facial disfiguration, reconstruction, and transplantation. Finally, we maintain that the time has come to move facial transplantation research into the clinical phase. (shrink)

(2013). An Empirical Study: To What Extent and In What Ways Does Social Foundations of Education Inform Four Teachers’ Educational Beliefs and Classroom Practices? Educational Studies: Vol. 49, No. 6, pp. 540-563.

"The decisive event in the history of modern aesthetics was Kant's Critique of Judgement. The seminal concepts of this work include the theory of the creative imagination, the 'purposiveness without purpose' of works of art, and the disinterestedness and subjective universality of judgements of taste. These concepts have remained basic in the aesthetic tradition from Kant's day to the present. The Quest for Imagination presents essays on several of the most important twentieth-century representatives of that tradition: George Santayana, Wallace Stevens, (...) Ernst Cassirer, Susanne Langer, Jacques Maritian, Jean-Paul Sartre, Northrop Frye, Edmund Husserl, Stephane Mallarme, Georges Poulet, and Gaston Bachelard. The essays introduce some of the finest thought on literature that this century has produced. Coming at a time when literature is frequently debased to propaganda and political cliche, they affirm the vitality of the aesthetic approach and the importance of the profession of letters in modern life." -- Dust jacket. (shrink)

"The decisive event in the history of modern aesthetics was Kant's Critique of Judgement. The seminal concepts of this work include the theory of the creative imagination, the 'purposiveness without purpose' of works of art, and the disinterestedness and subjective universality of judgements of taste. These concepts have remained basic in the aesthetic tradition from Kant's day to the present. The Quest for Imagination presents essays on several of the most important twentieth-century representatives of that tradition: George Santayana, Wallace Stevens, (...) Ernst Cassirer, Susanne Langer, Jacques Maritian, Jean-Paul Sartre, Northrop Frye, Edmund Husserl, Stephane Mallarme, Georges Poulet, and Gaston Bachelard. The essays introduce some of the finest thought on literature that this century has produced. Coming at a time when literature is frequently debased to propaganda and political cliche, they affirm the vitality of the aesthetic approach and the importance of the profession of letters in modern life." -- Dust jacket. (shrink)

Any attempt to construct a philosophy of Value must presuppose some general understanding of what Value is. And so it might seem natural to begin with a precise definition of the concept we are about to investigate. What, we might ask ourselves, is the characteristic peculiar to all those situations in the description of which we are accustomed to use the word “value” or its cognate terms, and distinguishing them as a class from all those situations to which we do (...) not apply the word? Proceeding empirically in this way, from an inspection of the “field of application” of the word “value” we might reasonably hope to discover a “highest common factor” of all the data, which would be the required definition of the concept “Value.” But we should be met at the outset by radical differences of opinion about the scope of the relevant data. (shrink)

Modal Logic, originally conceived as the logic of necessity and possibility, has developed into a powerful mathematical and computational discipline. It is the main source of formal languages aimed at analyzing complex notions such as common knowledge and formal provability. Modal and modal-like languages also provide us with families of restricted description languages for relational and topological structures; they are being used in many disciplines, ranging from artificial intelligence, computer science and mathematics via natural language syntax and semantics to philosophy. (...) This volume presents a broad and up-to-date view of the field, with contributions covering both the foundations of modal logic itself and each of the aforementioned application areas. Complemented with an editorial introduction covering the roots of modal logic, this book is indispensable for any advanced student and researcher in non-classical logic and its applications. (shrink)

Background and methods: Psychiatric research can occasionally present particular ethical dilemmas, but it is not clear what kind of problems local research ethics committees actually experience in this field. We aimed to assess the type of problems that committees encounter with psychiatric research, using a postal survey of 211 LRECs.Results: One hundred and seven of those written to replied within the time limit. Twenty eight experienced few problems with psychiatric applications. Twenty six emphasised the value of a psychiatric expert on (...) the committee. The most common issues raised were informed consent and confidentiality . The use of placebos , the validity of psychiatric questionnaires and overuse of psychiatric “jargon” in psychiatric applications also raised concern.Conclusions: Our results suggest that LRECs have specific concerns regarding methodology, consent, and confidentiality in psychiatric research, and that they find psychiatric input invaluable. (shrink)

Modal logic is one of philosophy’s many children. As a mature adult it has moved out of the parental home and is nowadays straying far from its parent. But the ties are still there: philosophy is important to modal logic, modal logic is important for philosophy. Or, at least, this is a thesis we try to defend in this chapter. Limitations of space have ruled out any attempt at writing a survey of all the work going on in our field—a (...) book would be needed for that. Instead, we have tried to select material that is of interest in its own right or exemplifies noteworthy features in interesting ways. Here are some themes that have guided us throughout the writing: • The back-and-forth between philosophy and modal logic. There has been a good deal of give-and-take in the past. Carnap tried to use his modal logic to throw light on old philosophical questions, thereby inspiring others to continue his work and still others to criticise it. He certainly provoked Quine, who in his turn provided—and continues to provide—a healthy challenge to modal logicians. And Kripke’s and David Lewis’s philosophies are connected, in interesting ways, with their modal logic. Analytic philosophy would have been a lot different without modal logic! • The interpretation problem. The problem of providing a certain modal logic with an intuitive interpretation should not be conflated with the problem of providing a formal system with a model-theoretic semantics. An intuitively appealing model-theoretic semantics may be an important step towards solving the interpretation problem, but only a step. One may compare this situation with that in probability theory, where definitions of concepts like ‘outcome space’ and ‘random variable’ are orthogonal to questions about “interpretations” of the concept of probability. • The value of formalisation. Modal logic sets standards of precision, which are a challenge to—and sometimes a model for—philosophy. Classical philosophical questions can be sharpened and seen from a new perspective when formulated in a framework of modal logic. On the other hand, representing old questions in a formal garb has its dangers, such as simplification and distortion. • Why modal logic rather than classical (first or higher order) logic? The idioms of modal logic—today there are many!—seem better to correspond to human ways of thinking than ordinary extensional logic. (Cf. Chomsky’s conjecture that the NP + VP pattern is wired into the human brain.) In his An Essay in Modal Logic (1951) von Wright distinguished between four kinds of modalities: alethic (modes of truth: necessity, possibility and impossibility), epistemic (modes of being known: known to be true, known to be false, undecided), deontic (modes of obligation: obligatory, permitted, forbidden) and existential (modes of existence: universality, existence, emptiness). The existential modalities are not usually counted as modalities, but the other three categories are exemplified in three sections into which this chapter is divided. Section 1 is devoted to alethic modal logic and reviews some main themes at the heart of philosophical modal logic. Sections 2 and 3 deal with topics in epistemic logic and deontic logic, respectively, and are meant to illustrate two different uses that modal logic or indeed any logic can have: it may be applied to already existing (non-logical) theory, or it can be used to develop new theory. (shrink)

By way of a selective comparison of the work of Georges Canguilhem and Henri Bergson on their respective conceptions of ‘problematology’, this article argues that the centrality of the notion of the ‘problem’ in each can be found in their differing conceptions of the philosophy of life and the living being. Canguilhem’s model, however, ultimately moves beyond or away from (legislative) philosophy and epistemology towards the question of ethics in so far as his vitalism is a means of signalling the (...) refusal of the supposition that all of the dimensions of life are or might be in our possession. Michel Foucault’s project, though directed for the most part to very different subject-matter, worked out a similar logic in the historical problematology of the sciences of ‘man’ and mentalities of government and power; and the results were equally ethical in so far as Foucault’s nominalist historical problematology entailed the refusal of any idea that all of the dimensions of our anthropological ‘essence’ are, or could be, likewise, in our possession. (shrink)

We investigate the research programme of dynamic doxastic logic (DDL) and analyze its underlying methodology. The Ramsey test for conditionals is used to characterize the logical and philosophical differences between two paradigmatic systems, AGM and KGM, which we develop and compare axiomatically and semantically. The importance of Gärdenfors’s impossibility result on the Ramsey test is highlighted by a comparison with Arrow’s impossibility result on social choice. We end with an outlook on the prospects and the future of DDL.

A cardinality result in modal propositional logic.

Despite the enormous influence of Michel Foucault in gender studies, social theory, and cultural studies, his work has been relatively neglected in the study of politics. Although he never published a book on the state, in the late 1970s Foucault examined the technologies of power used to regulate society and the ingenious recasting of power and agency that he saw as both consequence and condition of their operation. These twelve essays provide a critical introduction to Foucault's work on politics, exploring (...) its relevance to past and current thinking about liberal and neo-liberal forms of government. Moving away from the great texts of liberal political philosophy, this book looks closely at the technical means with which the ideals of liberal political rationalities have been put into practice in such areas as schools, welfare, and the insurance industry. This fresh approach to one of the seminal thinkers of the twentieth century is essential reading for anyone interested in social and cultural theory, sociology, and politics. (shrink)

This article argues that the notion of the archive is of some value for those interested in the history of the human sciences. Above all, the archive is a means of generating ethical and epistemological credibility. The article goes on to suggest that there are three aspects to modern archival reason: a principle of publicity whereby archival information is made available to some or other kind of public; a principle of singularity according to which archival reason focuses upon questions of (...) detail; and a principle of mundanity, whereby the privileged focus of archival reason is said to be the commonplace dimension of everyday life. (shrink)

The well-known argument of Frederick Fitch, purporting to show that verificationism (= Truth implies knowability) entails the absurd conclusion that all the truths are known, has been disarmed by Dorothy Edgington''s suggestion that the proper formulation of verificationism presupposes that we make use of anactuality operator along with the standardly invoked epistemic and modal operators. According to her interpretation of verificationism, the actual truth of a proposition implies that it could be known in some possible situation that the proposition holds (...) in theactual situation. Thus, suppose that our object language contains the operatorA — it is actually the case that ... — with the following truth condition: vA iff w0, wherew 0 stands for the designated world of the model — the actual world. Then we can formalize the verificationist claim as follows. (shrink)

Having gained some idea of what MacIntosh logics there are, we conclude this paper with a remark about the totality of them. Let theterritory of a rule or condition be the class of all modal logics that have the rule or satisfy the condition. What is MacIntosh territory, the class of all normal logics with the MacIntosh rule, like? What is its structure?

This paper approaches the problem of the ontology of the photographic image ‘post-digitalization’ historically, via a conception of photography as the historical totality of photographic forms. It argues, first, that photography is not best understood as a particular art or medium, but rather in terms of the form of the image it produces; second, that the photographic image is the main social form of the digital image ; and third, that there is no fundamental ontological distinction regarding indexicality between photographically (...) generated digital images and those of chemically based photography. ‘The anxiety about the real’ produced by digital imagery has its origins elsewhere, in the ontological peculiarities of the social form of value in societies based on relations of exchange. Distinguishing between the ‘event of capture’ and the ‘event of visualization’, it is argued that it is in its potential for an infinite multiplication of visualizations that the distinctiveness of the digital image lies. In the digital image, the infinite possibilities for social exchange generated by the abstraction of value from use finds an equivalent visual form. (shrink)

In 1985 Alchourrón, Gärdenfors and Makinson presented their now classic theory of theory change . In 1988 Adam Grove, generalizing David Lewis's theory of counterfactuals, presented a model theory suitable for the AGM theory. Although AGM and Grove mentioned object languages, neither used them. But recently, Maarten de Rijke has shown how object languages can be brought into the picture. In the present paper we take de Rijke's idea further, addressing the question whether there is a particular doxastic or epistemic (...) logic implicit in AGM. (shrink)

Numerous authors have interpreted the history of anthropological and medical conceptions of race in nineteenth century France as following a path mapped out by phrenology, anthropometry, and Paul Broca's version of physical anthropology. On balance, this has resulted in an historical narrative centered on Parisian intellectual life and one leaving the impression that by the 1890s anthropological theories had moved away from ethnological and cultural explanations toward more biological views of race. This article, by contrast, examines the world beyond Paris (...) and the literatures of naval and army medicine from about 1830 to 1920. It describes the contours of a medical and anthropological pluralism in matters of race and ethnicity and argues that cultural and ethnological perspectives remained important to theorists of race through World War I. (shrink)

The clinical ethics propounded by Richard Zaner is unique. Partly because of his phenomenological orientation and partly because of his own daily practice as a clinical ethicist in a large university hospital, Zaner focuses on the particular concrete situations in which patients and their families confront illness and injury and struggle toward workable ways for dealing with them. He locates ethical reality in the clinical encounter. This encounter encompasses not only patient and physician but also the patients family and friends (...) and indeed the entire lifeworld in which the patient is still striving to live. In order to illuminate the central moral constituents of such human predicaments, Zaner discusses the often-overlooked features of disruption and crisis, the changed self, the patients dependence and the physicians power, the violation of personal boundaries and their necessary reconfiguring, and the art of listening. (shrink)

A history of the logic of action is outlined, beginning with St Anselm. Five modern authors are discussed in some detail: von Wright, Fitch, Kanger, Chellas and Pratt.