consciousness comes about as a result of irritating nervous tissue, is just as unaccountable as the appearance of Djin when Aladdin rubbed his lamp.

If a philosophical theory led to the conclusion that the red stripes cannot look red to both men and women, both blacks and whites, both young and old, we would be reluctant (to say the least) to accept that philosophical theory. But there is a widespread philosophical view about the nature of conscious experience that, together with some empirical facts, suggests that color experience cannot be veridical for both men and women, both blacks and whites, both young and old.

This paper sets out a philosophical interpretation of the model theory of Mares and Goldblatt (The Journal of Symbolic Logic 71, 2006). This interpretation distinguishes between truth conditions and information conditions. Whereas the usual Tarskian truth condition holds for universally quantified statements, their information condition is quite different. The information condition utilizes general propositions . The present paper gives a philosophical explanation of general propositions and argues that these are needed to give an adequate theory of general information.

In this paper we set out a semantics for relevant (counterfactual) conditionals. We combine the Routley-Meyer semantics for relevant logic with a semantics for conditionals based on selection functions. The resulting models characterize a family of conditional logics free from fallacies of relevance, in particular counternecessities and conditionals with necessary consequents receive a non-trivial treatment.

This paper presents a theory of belief revision that allows people to come tobelieve in contradictions. The AGM theory of belief revision takes revision,in part, to be consistency maintenance. The present theory replacesconsistency with a weaker property called coherence. In addition to herbelief set, we take a set of statements that she rejects. These two sets arecoherent if they do not overlap. On this theory, belief revision maintains coherence.

It may be nearly impossible to use standard principles to make a decision about a complex ethical case. The best decision, say virtue ethicists in the Aristotelian tradition, is often one that is made by a person of good character who knows the salient facts of the case and can frame the situation appropriately. In this respect ethical decisions and strategic decisions are similar. Rationality plays a role in good ethical decision-making, but virtue ethicists emphasize the importance of intuitions and (...) emotions as well.Virtue ethics suggests a reconciliation of the factual and the normative. Virtues may explain as well as justify actions. The same is true of other psychological states and events. That psychological terms have normative implications does not render them useless in explanation. As Aristotle does not distinguish cleanly between the normative and empirical, so many moral philosophers today reject the is-ought dichotomy. They are prepared to learn from economists, psychologists, and other empirical scientists who offer information about the nature of the good life and of values. Social psychologists who study community or corporate culture suggest a close relationship between organizational and ethical features, much as Aristotle saw a close relationship between politics and ethics. We should infer from all this that in business ethics there is good reason for philosophers and organization scholars to work closely together. (shrink)

This paper extends the theory of situated inference from Mares to treat two weak relevant logics, B and DJ. These logics are interesting because they can be used as bases for consistent naïve theories, such as naïve set theory. The concepts of a situation and of information that are employed by the theory of situated inference are used to justify various aspects of these logics and to give an interpretation of the notion of set that is represented in the naïve (...) set theories that are based on them. (shrink)

The purpose of this paper is to show that semantics for relevance logic, based on the Routley-Meyer semantics, can be given without using the Routley star operator to treat negation. In the resulting semantics, negation is treated implicationally. It is shown that, by the use of restrictions on the ternary accessibility relation, simplified by the use of some definitions, a semantics can be stipulated over which R is complete.

A convenient locus of discussion is provided by Dennett.

Many authors have posited an “object file” system, which underlies perceptual selection and tracking of objects. Several have proposed that this system internalizes principles specifying what counts as an object and relies on them during tracking. Here I consider a popular view on which the object file system is tuned to entities that satisfy principles of three-dimensionality, cohesion, and boundedness. I argue that the evidence gathered in support of this view is consistent with a more permissive view on which object (...) files select and track according to well-known perceptual organization criteria. Further evidence supplies positive support for the permissive view. (shrink)

The logic CE (for "Classical E") results from adding Boolean negation to Anderson and Belnap's logic E. This paper shows that CE is not a conservative extension of E.

This paper sets out two semantics for the relevant logic R based on Dunn's four-valued semantics for first-degree entailments. Unlike Routley's semantics for weak relevant logics, they do not use two ternary accessibility relations. Unlike Restall's semantics, they capture all of R. But there is a catch. Both of the present semantics are neighbourhood semantics, that is, they include sets of propositions in the specification of their frames.

Abstract:Phillips and Margolis argue that moral philosophy is a poor basis for business ethics, but their narrow view of moral philosophy would exclude Aristotle, for one. They criticize me for assimilating states and organizations in using the Rawlsian device, but they put too much faith in Rawls’s distinction between states and voluntary organizations and pay too little attention to the continuities between them. Their plea for a conceptually autonomous ethics for organizations I interpret as reasonable and largely compatible with my (...) own stated opinion. (shrink)

Behaviorism is consistent with the assumptions of perfect competition, with the homo economicus model, and with a form of ethics that enshrines market-based notions of utility, justice, and rights and encourages rational maximizing. Economics and business courses foster this deficient form of ethics, assuming an overriding desire for money, which, according to MacIntyre and Aristotle, crowds out the associative virtues. These beliefs, often associated with Taylor and Friedman, lead to such practices as incentive compensation, which would be effective only if (...) employees were homines economici and thus rational in the sense of knowing how to satisfy whatever desires they have. Against Davidson’s view that psychology cannot be a natural science, Aristotle believes that there can be a teleological, if not exact, science of behavior. Aristotle believes that emotions and objectives may be rational or irrational. But rationality—phronesis, practical wisdom—is not a matter of applying algorithms. Doris questions whether character generates the first premises of an agent’s practical syllogisms, while Haidt has argued that we often act on emotions rather than on the basis of the reasons that we claim motivate us. Aristotle agrees that many people are not virtuous and that weakness of the will is a common occurrence, and he agrees that emotion drives actions. But if you are virtuous, your emotions and desires support your rationality. Aristotle gives us reason to reject the notion that people are homines economici and to treat them as rational deliberators, in part by creating an appropriate culture. The claim that it is in the nature of human beings to deliberate rationally is in part aspirational, but also in part scientific—in Aristotle’s modest sense. (shrink)

Abstract:Phillips and Margolis argue that moral philosophy is a poor basis for business ethics, but their narrow view of moral philosophy would exclude Aristotle, for one. They criticize me for assimilating states and organizations in using the Rawlsian device, but they put too much faith in Rawls’s distinction between states and voluntary organizations and pay too little attention to the continuities between them. Their plea for a conceptually autonomous ethics for organizations I interpret as reasonable and largely compatible with my (...) own stated opinion. (shrink)

In recent years many influential philosophers have advocated that philosophy is an a priori science. Yet very few epistemology textbooks discuss a priori knowledge at any length, focusing instead on empirical knowledge and empirical justification. As a priori knowledge has moved centre stage, the literature remains either too technical or too out of date to make up a reasonable component of an undergraduate course. Edwin Mares book aims to rectify this. This book seeks to make accessible to students the (...) standard topics and current debates within a priori knowledge, including necessity and certainty, rationalism, empiricism and analyticity, Quine's attack on the a priori, Kantianism, Aristotelianism, mathematical knowledge, moral knowledge, logical knowledge and philosophical knowledge. (shrink)

In this paper, I set out a semantics for identity in relevant logic that is based on an analogy between the biconditional and identity. This analogy supports the semantics that Priest has set out for identity in basic relevant logic and it motivates a version of the Routley–Meyer semantics in which identities can be viewed as constraints on the ternary relation that is used to treat implication.

Maladapting Minds discusses a number of reasons why philosophers of psychiatry should take an interest in evolutionary explanations of mental disorders and, more generally, in evolutionary thinking. First of all, there is the nascent field of evolutionary psychiatry. Unlike other psychiatrists, evolutionary psychiatrists engage with ultimate, rather than proximate, questions about mental illnesses. Being a young and youthful new discipline, evolutionary psychiatry allows for a nice case study in the philosophy of science. Secondly, philosophers of psychiatry have engaged with evolutionary (...) theory because evolutionary considerations are often said to play a role in defining the concept of mental disorder. The basic question here is: Can the concept of mental disorder be given an objective definition, or is it rather a normative concept? Thirdly and finally, evolutionary thinking in psychiatry has often been a source of inspiration for a philosophical view on human nature. Thus evolutionary psychiatrists have suggested, for example, that man's vulnerability to mental disorders may well be one of the defining features of our species. -/- Written by leading authors in philosophy, psychiatry, biology and psychology, this volume illustrates that many debates in contemporary philosophy of psychiatry are profoundly influenced by evolutionary approaches to mental disorders. Conversely, it also reveals how philosophers can help contribute to the burgeoning field of evolutionary psychiatry. It is important reading for a wide range of readers interested in mental health care and philosophy. (shrink)

Abstract:We have reached a rough moral consensus in the field of business ethics. We believe in capitalism with a safety net and enough regulation to deal with serious market imperfections. We favor autonomy for individuals and democracy for governments, though not necessarily for organizations. We recognize the rights of citizens and the different rights of employees. We respect a variety of possible sets of values, and so countenance a distinction between public and private. In other words, we are capitalists, pluralists, (...) and liberals. But globalization will force us and businesspeople who share our views to deal with significant stakeholders who do not. The 21st century will see the accelerating pace of globalization. The great challenge for business ethics, for its philosophers and its scholars of business, will be to identify and advocate morality that takes adequate account of globalization, and that in so doing avoids untenable parochialism without falling into relativism. (shrink)

Evolutionary theory has gained some ground in the social sciences, but not without resistance. It must be said that at least some of the resistance on the part of social scientists is justified insofar as social and cultural phenomena such as sports are often much more complex than many evolutionary theorists seem to think. We propose in this paper an evolutionary approach to sports that takes into account its profoundly cultural character, thereby overcoming the traditional nature-culture dichotomies in the sociology (...) of sport. We argue that there are good reasons to view sports as culturally evolved signaling systems which serve a function similar to courtship rituals in other animals. Our approach combines the insights of evolutionary psychology, which states that biological adaptations determine the boundaries for the types of sport that are possible, and pure cultural theories, which describe the mechanism of cultural evolution without once referring to sport’s biological base. We substantiate this integrative theoretical framework by identifying several biological and cultural factors which may moderate the direct effect that signaling value has on a sport’s viability or popularity. A discussion of this framework’s implications for future theoretical and empirical research concludes this essay. (shrink)

The first problem concerns the famous Swampman who comes into existence as a result of a cosmic accident in which particles from the swamp come together, forming a molecular duplicate of a typical human. Reasonable people can disagree on whether Swampman has intentional contents. Suppose that Swampman marries Swampwoman and they have children. Reasonable people will be inclined to agree that there is something it is like for Swampchild when "words" go through his mind or come out of his mouth. (...) Fred Dretske (1995) claims that if the materialist is to have any theory of intentional content at all, he has no option other than denying it. He is committed to the view that since phenomenal character is a kind of representational content that derives from evolution, the swampchildren have no phenomenal character. Zombiehood is hereditary. (So long as there is no evolution.) If your grandparents are all swamp-people, you are a zombie. (shrink)

This is a charming and engaging book that combines careful attention to the phenomenology of experience with an appreciation of the psychology and neuroscience of perception. In some of its aimsfor example, to show problems with a rigid version of a view of visual perception as an inverse optics process of constructing a static 3-D representation from static 2-D information on the retina--it succeeds admirably. As No points out, vision is a process that depends on interactions between the perceiver and (...) the environment and involves contributions from sensory systems other than the eye. He is at pains to note that vision is not passive. His analogy with touch is to the point: touch involves skillful probing and movement, and so does vision, although less obviously and in my view less centrally so. This much is certainly widely accepted among vision scientistsalthough mainstream vision scientists (represented, for example, by Stephen Palmers excellent textbook²) view these points as best seen within a version of the inverse optics view that takes inputs as non-static and as including motor instructions (for example, involving eye movements and head movements).³ The kind of point that No raises is viewed as important at the margins, but as not disturbing the main lines of the picture of vision that descendswith many changesfrom the pioneering work of David Marr in the 1980s (and before him, from Helmholtz). But No shows little interest in mainstream vision science, focusing on non-mainstream ideas in the science of perception, specifically ideas from the anti-representational psychologist J.J. Gibson, and also drawing on Wittgenstein and the phenomenology tradition. There is a sense throughout the book of revolution, of upsetting the applecart. This is a review from the point of view of the applecart. (shrink)

This paper begins with a discussion of C. I. Lewis’s theory of meaning in his book, An Analysis of Knowledge and Valuation (1946) and his pragmatic theory of analyticity and necessity. I bring this theories together with some remarks that he makes in an appendix to the second edition of Symbolic Logic to construct an algebraic semantics for his logics S2 and S3. These logics and their semantics are compared and evaluated with regard to how well they implement Lewis’s theories (...) of meaning and analyticity. (shrink)

The fregean theory of meaning says how the meaningful parts of a meaningful expression contribute to that expression's sense and reference. But frege overlooks the fact that logical expressions play dual roles. The contributions of sentential connectives, For example, Are well described for contexts in which they connect sentences, But not for larger quantificational contexts. An obvious modification of the theory which might fill the abyss is considered, And it is maintained that it produces two difficulties: a replication of frege's (...) concept 'horse' troubles and an infinite proliferation of logical vocabulary. The seriousness of these difficulties is briefly discussed. (shrink)

This paper sets out a semantics for C.I. Lewis's logic S2 based on the ontology of his 1923 paper ‘Facts, Systems, and the Unity of the World’. In that article, worlds are taken to be maximal consistent systems. A system, moreover, is a collection of facts that is closed under logical entailment and conjunction. In this paper, instead of defining systems in terms of logical entailment, I use certain ideas in Lewis's epistemology and philosophy of logic to define a class (...) of models in which systems are taken to be primitive elements but bear certain relations to one another. I prove soundness and completeness for S2 over this class of models and argue that this semantics makes sense of at least a substantial fragment of Lewis's logical theory. (shrink)

The context and caption of a photograph often suggest that the content described is real. When this happens an assertion is made?at least implicitly. Newspapers provide such a context, and viewers naturally understand news photographs assertively. If in such a context, the content described is not real, then the viewer is likely to be deceived. Willful viewer deception is practiced by photographers in a variety of common situations in which it is unjustifiable.

Ideological diversity has been on the research agenda in the social sciences for a couple of years. Yet in philosophy, the topic has not attracted much interest. This article tries to start filling this gap. We discuss a number of possible causes for the underrepresentation of right-wing and conservative philosophers in the academic profession. We also argue why this should be an important concern, not only morally, but also and primarily epistemically. Lastly, we explore whether the situation in philosophy is (...) more problematic than the situation in other fields, and what kind of ideological diversity would be desirable for academic philosophy. (shrink)

We typically test norms with reference to their usefulness in dealing with social problems and issues, though sometimes we use hypernorms to evaluate them. The hypernorms that we find most acceptable do not guide action in the way local norms do. They do, however, raise challenging questions that we should ask in evaluating any practice and its associated norms. In this respect, they differ from the principles associated with traditional, as opposed to modern, morality. As societies become more alike, in (...) part as a result of globalization, they will face increasingly similar problems. Then their local norms will be more similar, and they will be more likely to share hypernorms. Insofar as we can agree to try to justify our hypernorms, we are likely to converge on the hypernorms characteristic of modern rather than traditional morality. But people are often attached to their old norms and so are not very good at seeing how hypernorms raise questions that challenge the old norms. Here moral imagination should aid in the adjustment process. A system of democratic capitalism is hospitable to a good kind of moral convergence. (shrink)