This paper concerns automorphisms of the computably enumerable sets. We prove two results relating semilow sets and prompt degrees via automorphisms, one of which is complementary to a recent result of Downey and Harrington. We also show that the property of effective simplicity is not invariant under automorphism, and that in fact every promptly simple set is automorphic to an effectively simple set. A major technique used in these proofs is a modification of the Harrington-Soare version of the method of (...) Harrington-Soare and Cholak for constructing Δ 0 3 automorphisms; this modification takes advantage of a recent result of Soare on the extension of "restricted" automorphisms to full automorphisms. (shrink)

We investigate homomorphisms of degree structures with various relations, functions and constants. Our main emphasis is on pseudolattices, i.e., partially ordered sets with a join operation and relations simulating the meet operation. We show that there are no finite quotients of the pseudolattice of degrees or of the pseudolattice of degrees 0′, but that many finite distributive lattices are pseudolattice quotients of the pseudolattice of computably enumerable degrees.

Discussion of J. Kevin O’Regan’s “Why Red Doesn’t Sound Like a Bell: Understanding the Feel of Consciousness” Content Type Journal Article Pages 1-20 DOI 10.1007/s13164-012-0090-7 Authors J. Kevin O’Regan, Laboratoire Psychologie de la Perception, CNRS - Université Paris Descartes, Centre Biomédical des Saints Pères, 45 rue des Sts Pères, 75270 Paris cedex 06, France Ned Block, Departments of Philosophy, Psychology and Center for Neural Science, New York University, 5 Washington Place, New York, NY 10003, USA Journal Review of (...) Philosophy and Psychology Online ISSN 1878-5166 Print ISSN 1878-5158. (shrink)

Discontented people might talk of corruption in the Commons, closeness in the Commons and the necessity of reforming the Commons, said Mr. Spenlow solemnly, in conclusion; but when the price of wheat per bushel had been the highest, the Commons had been the busiest; and a man might lay his hand upon his heart, and say this to the whole world, – ‘Touch the Commons, and down comes the country!’.

We argue that uncomputability and classical scepticism are both re ections of inductive underdetermination, so that Church's thesis and Hume's problem ought to receive equal emphasis in a balanced approach to the philosophy of induction. As an illustration of such an approach, we investigate how uncomputable the predictions of a hypothesis can be if the hypothesis is to be reliably investigated by a computable scienti c method.

Philosophical logicians proposing theories of rational belief revision have had little to say about whether their proposals assist or impede the agent's ability to reliably arrive at the truth as his beliefs change through time. On the other hand, reliability is the central concern of formal learning theory. In this paper we investigate the belief revision theory of Alchourron, Gardenfors and Makinson from a learning theoretic point of view.

Neuroeconomics is the newest of the economic sciences with a focus on how the embodied human brain interacts with its institutional and social environment to make economic decisions. This paper presents an overview of neuroeconomics methods and reviews a number of results in this emerging field of study.

J. S. Mill's role as a transitional figure between classical and egalitarian liberalism can be partly explained by developments in his often unappreciated economic views. Specifically, I argue that Mill's separation of economic production and distribution had an important effect on his political theory. Mill made two distinctions between economic production and the distribution of wealth. I argue that these separations helped lead Mill to abandon the wages-fund doctrine and adopt a more favorable view of organized labor. I also show (...) how Mill's developments impacted later philosophers, economists, and historians. Understanding the relationship between Mill's political theory and economic theory does not only matter for Mill scholarship, however. Contemporary philosophers often ignore the economic views of their predecessors. I argue that paying insufficient attention to historical political philosophers' economic ideas obscures significant motivations for their political views. (shrink)

Kevin Scharp proposes an original theory of the nature and logic of truth on which truth is an inconsistent concept that should be replaced for certain theoretical purposes. He argues that truth is best understood as an inconsistent concept, and proposes a detailed theory of inconsistent concepts that can be applied to the case of truth. Truth also happens to be a useful concept, but its inconsistency inhibits its utility; as such, it should be replaced with consistent concepts that (...) can do truth's job without giving rise to paradoxes. To this end, Scharp offers a pair of replacements, which he dubs ascending truth and descending truth, along with an axiomatic theory of them and a new kind of possible-worlds semantics for this theory. He goes to develop Davidson's idea that truth is best understood as the core of a measurement system for rational phenomena, and offers a semantic theory that treats truth predicates as assessment-sensitive and solves the problems posed by the liar and other paradoxes. (shrink)

A collection completing the record of one of the foremost environmental design theorists of our time.

Niche construction is the process whereby organisms, through their activities and choices, modify their own and each other’s niches. By transforming natural-selection pressures, niche construction generates feedback in evolution at various different levels. Niche-constructing species play important ecological roles by creating habitats and resources used by other species and thereby affecting the flow of energy and matter through ecosystems—a process often referred to as “ecosystem engineering.” An important emphasis of niche construction theory is that acquired characters play an evolutionary role (...) through transforming selective environments. This is particularly relevant to human evolution, where our species has engaged in extensive environmental modification through cultural practices. Humans can construct developmental environments that feed back to affect how individuals learn and develop and the diseases to which they are exposed. Here we provide an introduction to NCT and illustrate some of its more important implications for the human sciences. (shrink)

The latest attempt by a determined, well-resourced lobby to introduce a law to permit assisted suicide/euthanasia in the UK was announced 15 May 2013 in the House of Lords. There are many dangerous facets to their arguments, not least of which is the rôle they cast for doctors in this debate. Rush Rhees' remarks on the topic display a depth that is lacking in the current debate in the public square, which needs to be lifted from its current low level. (...) I try to show inter alia why the question of who is ‘qualified to speak’ in this deep moral dilemma is important ; why resistance is vital against a law, which must be general, permitting assisted suicide/euthanasia ; how one group of people judging another group of people as candidates for elimination, is based on the false notion that a disabled life is ‘not worth living’; that so many of the deep moral questions raised by assisted suicide/euthanasia are not even considered in the contemporary impoverished public debate. (shrink)

Disorder and suffering are increasing significantly in our society. Violent crime, unemployment, escape through drug-taking are all on the increase. It is apparent, also, that much of this disorder and suffering, and the anxiety it fosters, is rooted in science and its technological off-spring. The un-employment produced by a micro-technology is only one small example. It is also apparent that one of the principal foundation stones for the scientific enterprise was Christianity.

The role of values in scientific research has become an important topic of discussion in both scholarly and popular debates. Pundits across the political spectrum worry that research on topics like climate change, evolutionary theory, vaccine safety, and genetically modified foods has become overly politicized. At the same time, it is clear that values play an important role in science by limiting unethical forms of research and by deciding what areas of research have the greatest relevance for society. Deciding how (...) to distinguish legitimate and illegitimate influences of values in scientific research is a matter of vital importance.Recently, philosophers of science have written a great deal on this topic, but most of their work has been directed toward a scholarly audience. This book makes the contemporary philosophical literature on science and values accessible to a wide readership. It examines case studies from a variety of research areas, including climate science, anthropology, chemical risk assessment, ecology, neurobiology, biomedical research, and agriculture. These cases show that values have necessary roles to play in identifying research topics, choosing research questions, determining the aims of inquiry, responding to uncertainty, and deciding how to communicate information. Kevin Elliott focuses not just on describing roles for values but also on determining when their influences are actually appropriate. He emphasizes several conditions for incorporating values in a legitimate fashion, and highlights multiple strategies for fostering engagement between stakeholders so that value influences can be subjected to careful and critical scrutiny. (shrink)

This book is presumably a collection of essays delivered at a conference, though it's hard to say. There is no cover description and the editors' introduction, where this information might have been found, is missing from the volume (at least from my copy) in spite of being listed in the table of contents. A curious editorial slip. In fact, from an editorial perspective this book is a disaster. Not only is the format reminiscent of those camera ready volumes that jammed (...) our libraries in the late Eighties, when word processors began to spread and people started using them to produce entire books without knowing how to handle line spacing and hyphenation -- not to mention orphans and widows, footnotes, tabs, apostrophes, etc. There are also lots of typos, English infelicities, punctuation disorders. Obviously nobody checked the page proofs. There are even formulas that were not properly converted from the original files and have been printed with the infamous boxes in place of the logical symbols. Publishing academic books in analytic philosophy is becoming increasingly difficult and not every publisher can afford serious copy editing. But charging 74 euros for such a poorly manufactured item is appalling. (shrink)

Gordon Kaufman is a theologian who wrestles with essential theological issues. In a recent amplification of his position, An Essay on Theological Method , 1 he makes an honest attempt to describe the method by which a self-critical theologian might work. This paper sets out a critique of the method Kaufman proposes and from that delineates a path which theologians might choose to follow.

There is growing interest in understanding and eliciting division of labor within groups of scientists. This paper illustrates the need for this division of labor through a historical example, and a formal model is presented to better analyze situations of this type. Analysis of this model reveals that a division of labor can be maintained in two different ways: by limiting information or by endowing the scientists with extreme beliefs. If both features are present however, cognitive diversity is maintained indefinitely, (...) and as a result agents fail to converge to the truth. Beyond the mechanisms for creating diversity suggested here, this shows that the real epistemic goal is not diversity but transient diversity. (shrink)

This book is a tribute to Kevin Kelly, who has been one of the most influential British theologians for a number of decades. On its own merits, however, it is groundbreaking collection of essays on key themes, issues and concepts in contemporary moral theology and Christian ethics. The focus is on perspectives to inform moral debate and discernment in the future. The main themes covered are shown in the list of contents below. Several of the of the contributors are (...) from the United States, three others live and work in Continental Europe and the rest are from various parts of the British Isles. Many of the authors are among the best known in their fields on both sides of the Atlantic. (shrink)

Increasingly, epistemologists are becoming interested in social structures and their effect on epistemic enterprises, but little attention has been paid to the proper distribution of experimental results among scientists. This paper will analyze a model first suggested by two economists, which nicely captures one type of learning situation faced by scientists. The results of a computer simulation study of this model provide two interesting conclusions. First, in some contexts, a community of scientists is, as a whole, more reliable when its (...) members are less aware of their colleagues' experimental results. Second, there is a robust tradeoff between the reliability of a community and the speed with which it reaches a correct conclusion. ‡The author would like to thank Brian Skyrms, Kyle Stanford, Jeffrey Barrett, Bruce Glymour, and the participants in the Social Dynamics Seminar at University of California–Irvine for their helpful comments. Generous financial support was provided by the School of Social Science and Institute for Mathematical Behavioral Sciences at UCI. †To contact the author, please write to: Department of Philosophy, Baker Hall 135, Carnegie Mellon University, Pittsburgh, PA 15213-3890; e-mail: [email protected] (shrink)

It is natural to think that social groups are concrete material particulars, but this view faces an important objection. Suppose the chess club and nature club have the same members. Intuitively, these are different clubs even though they have a common material basis. Some philosophers take these intuitions to show that the materialist view must be abandoned. I propose an alternative explanation. Social groups are concrete material particulars, but there is a psychological explanation of nonidentity intuitions. Social groups appear coincident (...) but nonidentical because they are perceived to be governed by conflicting social norms. (shrink)

In the eyes of many, liberalism requires the aggressive secularization of social institutions, especially public media and public schools. The unfortunate result is that many Americans have become alienated from the liberal tradition because they believe it threatens their most sacred forms of life. This was not always the case: in American history, the relation between liberalism and religion has often been one of mutual respect and support. In Liberal Politics and Public Faith: Beyond Separation , Kevin Vallier attempts (...) to reestablish mutual respect by developing a liberal political theory that avoids the standard liberal hostility to religious voices in public life. He claims that the dominant form of academic liberalism, public reason liberalism, is far friendlier to religious influences in public life than either its proponents or detractors suppose. The best interpretation of public reason, convergence liberalism, rejects the much-derided "privatization" of religious belief, instead viewing religious contributions to politics as a resource for liberal political institutions. Many books reject privatization, Liberal Politics and Public Faith: Beyond Separation is unique in doing so on liberal grounds. (shrink)

Theories of scientific rationality typically pertain to belief. In this paper, the author argues that we should expand our focus to include motivations as well as belief. An economic model is used to evaluate whether science is best served by scientists motivated only by truth, only by credit, or by both truth and credit. In many, but not all, situations, scientists motivated by both truth and credit should be judged as the most rational scientists.

Institutional review boards distinguish health care quality improvement and health care quality improvement research based primarily on the rigor of the methods used and the purported generalizability of the knowledge gained. Neither of these criteria holds up upon scrutiny. Rather, this apparently false dichotomy may foster under-protection of participants in QI projects and over-protection of participants within QIR.

In _Marx at the Margins_, Kevin Anderson uncovers a variety of extensive but neglected texts by the well-known political economist which cast what we thought we knew about his work in a startlingly different light. Analyzing a variety of Marx’s writings, including journalistic work written for the _New York Tribune_, Anderson presents us with a Marx quite at odds with our conventional interpretations. Rather than providing us with an account of Marx as an exclusively class-based thinker, Anderson here offers (...) a portrait of Marx for the twenty-first century: a global theorist whose social critique was sensitive to the varieties of human social and historical development, including not just class, but nationalism, race, and ethnicity, as well. _Marx at the Margins _ultimately argues that alongside his overarching critique of capital, Marx created a theory of history that was multi-layered and not easily reduced to a single model of development or revolution. Through highly-informed readings on work ranging from Marx’s unpublished 1879–82 notebooks to his passionate writings about the antislavery cause in the United States, this volume delivers a groundbreaking and canon-changing vision of Karl Marx that is sure to provoke lively debate in Marxist scholarship and beyond. (shrink)

The standard view in philosophy treats pains as phenomenally conscious mental states. This view has a number of corollaries, including that it is generally taken to rule out the existence of unfelt pains. The primary argument in support of the standard view is that it supposedly corresponds with the commonsense conception of pain. In this paper, we challenge this doctrine about the commonsense conception of pain, and with it the support offered for the standard view, by presenting the results of (...) a series of new empirical studies that indicate that lay people not only tend to believe that unfelt pains are possible, but actually, quite common. (shrink)

Much of contemporary knowledge is generated by groups not single individuals. A natural question to ask is, what features make groups better or worse at generating knowledge? This paper surveys research that spans several disciplines which focuses on one aspect of epistemic communities: the way they communicate internally. This research has revealed that a wide number of different communication structures are best, but what is best in a given situation depends on particular details of the problem being confronted by the (...) group. (shrink)

Of the dozens of purported solutions to the liar paradox published in the past fifty years, the vast majority are "traditional" in the sense that they reject one of the premises or inference rules that are used to derive the paradoxical conclusion. Over the years, however, several philosophers have developed an alternative to the traditional approaches; according to them, our very competence with the concept of truth leads us to accept that the reasoning used to derive the paradox is sound. (...) That is, our conceptual competence leads us into inconsistency. I call this alternative the inconsistency approach to the liar. Although this approach has many positive features, I argue that several of the well-developed versions of it that have appeared recently are unacceptable. In particular, they do not recognize that if truth is an inconsistent concept, then we should replace it with new concepts that do the work of truth without giving rise to paradoxes. I outline an inconsistency approach to the liar paradox that satisfies this condition. (shrink)

Grounding pluralism is the view that there are multiple kinds of grounding. In this essay, I motivate and defend an explanation-theoretic view of grounding pluralism. Specifically, I argue that there are two kinds of grounding: why-grounding—which tells us why things are the case—and how-grounding—which tells us how things are the case.

Some of philosophy's most central concepts, including art, friendship, and happiness, have been argued to be dual character concepts. Their main characteristic is that they encode not only a descriptive dimension but also an independent normative dimension for categorization. This article introduces the class of dual character concepts and discusses various accounts of their content and structure. A specific focus will be placed on their relation to two other classes of concepts, thick concepts and natural kind concepts. The study of (...) dual character concepts not only demonstrates that a wide range of concepts is inherently normative, but it also reveals new possibilities for investigating gender biases, generics, and social roles. (shrink)

We argue that the evolutionary function of reasoning is to allow us to secure more accurate beliefs and more effective intentions through collective deliberation. This sets our view apart both from traditional intellectualist accounts, which take the evolutionary function to be individual deliberation, and from interactionist accounts such as the one proposed by Mercier and Sperber, which agrees that the function of reasoning is collective but holds that it aims to disseminate, rather than come up with, accurate beliefs. We argue (...) that our collectivized intellectualism offers the best explanation of the range of biases that human reasoning is prone to, and that it does better than interactionism at offering a function of reasoning that would have been adaptive for our distant ancestors who first evolved this capacity. (shrink)

This paper approaches the problem of testimony from a new direction. Rather than focusing on the epistemic grounds for testimony, it considers the problem from the perspective of an individual who must choose whom to trust from a population of many would-be testifiers. A computer simulation is presented which illustrates that in many plausible situations, those who trust without attempting to judge the reliability of testifiers outperform those who attempt to seek out the more reliable members of the community. In (...) so doing, it presents a novel defense for the credulist position that argues one should trust testimony without considering the underlying reliability of the testifier. (shrink)

Positive and negative feelings were central to the development of economics, especially in utility theory in classical economics. While neoclassical utility theory ignored feelings, behavioral economics more recently reintroduced feelings in utility theory. Beyond feelings, economic theorists use full-fledged specific emotions to explain behavior that otherwise could not be understood or they study emotions out of interest for the emotion itself. While some analyses display a strong overlap between psychological thinking and economic modelling, in most cases there is still a (...) large gap between economic and psychological approaches to emotion research. Ways how to reduce this gap are discussed. (shrink)

Epistemologists have recently debated how we should respond to apparent cases of rational disagreement. Is it possible for two people to disagree and have both people still be rational? Those involved in this debate make use of the idea of epistemic peers. Two people are epistemic peers if they share the same knowledge of a given topic and have similar epistemic virtues. My paper argues that we have different kinds of epistemic peers; close peers who think similarly to ourselves, and (...) remote peers who think very differently. I argue that remote peers are genuine peers, but that we should respond to disagreement from remote peers differently than disagreement from close peers. (shrink)

Qualitative studies are an important component of business ethics research. This large amount of research covers a wide array of factors and influences on ethical decision making published between 2004 and 2014. Following the methodology of past critical reviews, this work provides a synopsis of the diverse array of qualitative studies in ethical decision making within the business ethics literature. We highlight the distinct and investigative nature of qualitative research, synthesize and summarize findings, and suggest opportunities for future research. We (...) conclude with a recommendation for developing qualitative studies in business ethics and a call for an increased openness when considering this valuable and underrepresented strategy of inquiry. (shrink)

The work of the Bohemian chemist Franz Wald seems to be unknown in the history of science. In this paper some of Wald's these concerning the foundation of chemical theory are discussed in connexion with reflexions given in unpublished letters, which Wald wrote to Ernst Mach during the years 1896–1907.