A mass problem is a set of Turing oracles. If P and Q are mass problems, we say that P is weakly reducible to Q if for all Y ∈ Q there exists X ∈ P such that X is Turing reducible to Y. A weak degree is an equivalence class of mass problems under mutual weak reducibility. Let [Formula: see text] be the lattice of weak degrees of mass problems associated with nonempty [Formula: see text] subsets of the Cantor (...) space. The lattice [Formula: see text] has been studied in previous publications. The purpose of this paper is to show that [Formula: see text] partakes of hyperarithmeticity. We exhibit a family of specific, natural degrees in [Formula: see text] which are indexed by the ordinal numbers less than [Formula: see text] and which correspond to the hyperarithmetical hierarchy. Namely, for each [Formula: see text], let hα be the weak degree of 0, the αth Turing jump of 0. If p is the weak degree of any mass problem P, let p* be the weak degree of the mass problem P* = {Y | ∃X ⊆ BLR )} where BLR is the set of functions which are boundedly limit recursive in X. Let 1 be the top degree in [Formula: see text]. We prove that all of the weak degrees [Formula: see text], [Formula: see text], are distinct and belong to [Formula: see text]. In addition, we prove that certain index sets associated with [Formula: see text] are [Formula: see text] complete. (shrink)

I discuss a puzzle that shows there is a need to develop a new metaphysical interpretation of mathematical theories, because all well-known interpretations conflict with important aspects of mathematical activities. The new interpretation, I argue, must authenticate the ontological commitments of mathematical theories without curtailing mathematicians' freedom and authority to creatively introduce mathematical ontology during mathematical problem-solving. Further, I argue that these two constraints are best met by a metaphysical interpretation of mathematics that takes mathematical entities to be constitutively constructed (...) by human activity in a manner similar to the constitutive construction of the US Supreme Court by certain legal and political activities. Finally, I outline some of the philosophical merits of metaphysical interpretations of mathematical theories of this type. (shrink)

This chapter talks about the war between the Formics, a seemingly malevolent species of aliens, and humans in the Ender's Game. The great tragedy of the violence that erupted from the Human/Formic war was the result of two deep misunderstandings. The Formics not only failed to grasp the capabilities of humanity, but humanity also deeply misunderstood the creatures that they would come to nickname “buggers.” These misunderstandings may have resulted from what is sometimes called “cultural incommensurability.” The chapter relates that (...) what is most important about Ender is not merely his ability to understand his “enemy,” but his ability to love them. He is able to harness the sympathies of the humans and change their minds about the buggers. Along with the Formic hive‐ queen, Ender now occupies the space in between the two conceptual schemes—a space he can never retreat from—and has begun translating their meanings. (shrink)

There is an imbalance of gender roles in everyone's favorite space saga, with the vast majority of characters played by males while the female parts are minimized at nearly every turn. But the underlying problem of womanhood in Star Wars might be even more insidious than Darth Sidious himself. This chapter explains why it is difficult to embrace a strong female identity anywhere, let alone in the midst of intergalactic war. It analyzes whether the women in Star Wars have what (...) it takes to bring feminism to the Force. While Princess Leia and Queen Amidala are instantly recognizable figures in popular culture, the question arises whether they represent women positively. While Leia and Padmé are typically recognized as the feminist icons of Star Wars, they are not all the films have to offer. The women of Star Wars offer just as much as any of the individual male characters. (shrink)

© The Authors [2017]. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: [email protected] Sher believes that our basic epistemic situation — that we aim to gain knowledge of a highly complex world using our severely limited, yet highly resourceful, cognitive capacities — demands that all epistemic projects be undertaken within two broad constraints: epistemic freedom and epistemic friction. The former permits us to employ our cognitive resourcefulness fully while undertaking epistemic projects, while the latter requires that (...) such projects always be substantially grounded in both the mind and reality. Epistemic Friction is an exploration of the latter constraint — the former being left for later work — that demonstrates the complementary nature of three projects that Sher has been working on, largely independently of one another, over the past three decades: a dynamic, neo-Quinean model of knowledge, a substantivist theory of truth, and... (shrink)

From roughly 1965 to 1995, Columbia University's Department of Sociology was a leading center for social study of science, both nationally and internationally. It was often referred to as the Merton School or Columbia School, and four scholars paved its way : Robert K. Merton, Harriet Zuckerman, Stephen Cole, and Jonathan Cole. The goal of the Columbia School was to create and legitimate a new sociological specialty focusing on the scientific community and the growth of scientific knowledge and (...) they did this by exploring the norms, values, and structure of science. The core values of the scientific and university system and the norms attached to them consisted of deeply held beliefs as well as principles that determined how individuals would act. They were organizing principles designed to support the institution in meeting its goals and mission. They influenced the types of social structures that developed to carry out the activities of scientists. Edited by Jonathan R. Cole, this collection of individually and co-authored papers and essays by Cole represents some of the work produced by Cole and his close collaborators over the past 50 years. the essays are contextualized with an introduction by Cole. The pieces in this volume represent the major concerns on the Columbia School, whose focus of attention was not on the production of individual pieces of knowledge, but on the social systems that made that production possible. (shrink)

Stephen Cole Kleene was one of the greatest logicians of the twentieth century and this book is the influential textbook he wrote to teach the subject to the next generation. It was first published in 1952, some twenty years after the publication of Godel's paper on the incompleteness of arithmetic, which marked, if not the beginning of modern logic. The 1930s was a time of creativity and ferment in the subject, when the notion of computable moved from the realm (...) of philosophical speculation to the realm of science. This was accomplished by the work of Kurt Gode1, Alan Turing, and Alonzo Church, who gave three apparently different precise definitions of computable. When they all turned out to be equivalent, there was a collective realization that this was indeed the right notion. Kleene played a key role in this process. One could say that he was there at the beginning of modern logic. He showed the equivalence of lambda calculus with Turing machines and with Godel's recursion equations, and developed the modern machinery of partial recursive functions. This textbook played an invaluable part in educating the logicians of the present. It played an important role in their own logical education.". (shrink)

The UK government has recently taken steps to exclude certain groups of migrants from free treatment under the National Health Service, most controversially from treatment for HIV. Whether this discrimination can have any coherent ethical basis is questioned in this paper. The exclusion of migrants of any status from any welfare system cannot be ethically justified because the distinction between citizens and migrants cannot be an ethical one.

Vols. for 1972- include papers from the Summer Linguistics Conference, University of California, Santa Cruz.

In December 2007 it was revealed that the British government is considering the exclusion of certain groups of migrants—those considered to be present “illegally”—from primary health care provided by the National Health Service. At present, practitioners have discretion to accept any individual for NHS treatment regardless of their status. A joint Home Office and Department of Health review is examining this access for foreign nationals, and the likely outcome is the restriction of access to irregular migrants, which would, according to (...) the Institute of Public Policy Research, affect around 390,000 people. In 2004 such groups were excluded from NHS secondary care, most controversially from treatment for HIV, and so the present proposal would bar them from all but emergency health treatment. (shrink)

Simon Blackburn’s supervenience argument—focusing on the mysterious “ban on mixed worlds”—is still subject to a variety of conflicting interpretations. In this paper, I hope to provide a defense of the argument that clarifies both the argument and the objections it must overcome. Many of the extant objections, I will argue, fail to engage the argument in its true form. And to counter the more compelling objections, it will be necessary to bring in additional argumentation that Blackburn himself does not clearly (...) provide. One important upshot of this discussion is that moral realism is not the only target of the argument: it raises trouble for a variety of metaethical views wed to realist-friendly construals of moral evaluation. Rightly understood, this argument not only survives the prominent responses, but turns out to be more powerful than his critics and Blackburn himself have recognized. (shrink)

1. Bd. Systematik; die vier Aspekte der Erkenntnis.--2. Bd. Mikrokosmos. Die Kategorien der Psychologie.--3. Bd. Selbstinnewerdung. Strukturen des Selbstbewusstseins.--4. Bd. Makrokosmos, die fünf Aspekte des Universalen.

Whether on personal health, politics, or climate change, we are constantly bombarded with more numerous 'breaking news' articles than we have time for. In such an environment, how can we tell which to read, or which is even true. Science of the Earth, Climate and Energy helps readers understand major issues that affect us individually and the world as a whole. In language that a non-scientist can follow easily, the book first explains the general principles of science, its nature and (...) how it works, with a certain degree of emphasis on the meaning of the words "uncertainty" and "fact, before it goes into the related topics of the earth, its climate and energy sources at a level that does not require a background in science. Finally, the book addresses what individuals and societies can do to mitigate problems associated with both climate change and limited resources. (shrink)

How do children acquire beliefs from testimony? In this chapter, we discuss children's trust in testimony, their sensitivity to and use of defeaters, and their appeals to positive reasons for trusting what other people tell them. Empirical evidence shows that, from an early age, children have a tendency to trust testimony. However, this tendency to trust is accompanied by sensitivity to cues that suggest unreliability, including inaccuracy of the message and characteristics of the speaker. Not only are children sensitive to (...) evidence of unreliability, but they are also sensitive to the positive reasons a speaker may have for the reliability of their testimony. This evidence is discussed in relation to reductivist and non-reductivist viewpoints. (shrink)

Previous research on linguistic relativity and economic decisions hypothesized that speakers of languages with obligatory tense marking of future time reference (FTR) should value future rewards less than speakers of languages which permit present tense FTR. This was hypothesized on the basis of obligatory linguistic marking (e.g., will) causing speakers to construe future events as more temporally distal and thereby to exhibit increased “temporal discounting”: the subjective devaluation of outcomes as the delay until they will occur increases. However, several aspects (...) of this hypothesis are incomplete. First, it overlooks the role of “modal” FTR structures which encode notions about the likelihood of future outcomes (e.g., might). This may influence “probability discounting”: the subjective devaluation of outcomes as the probability of their occurrence decreases. Second, the extent to which linguistic structures are subjectively related to temporal or probability discounting differences is currently unknown. To address these, we elicited FTR language and subjective ratings of temporal distance and probability from speakers of English, which exhibits strongly grammaticized FTR, and Dutch, which does not. Several findings went against the predictions of the previous hypothesis: Framing an FTR statement in the present (“Ellie arrives later on”) versus the future tense (“…will arrive…”) did not affect ratings of temporal distance; English speakers rated future statements as relatively more temporally proximal than Dutch speakers; and English and Dutch speakers rated future tenses as encoding high certainty, which suggests that obligatory future tense marking might result in less discounting. Additionally, compared with Dutch speakers, English speakers used more low-certainty terms in general (e.g., may) and as a function of various experimental factors. We conclude that the prior cross-linguistic observations of the link between FTR and psychological discounting may be caused by the connection between low-certainty modal structures and probability discounting, rather than future tense and temporality. (shrink)

In this monograph I propose to interpret John Locke's view of central metaphysical notions such as substance, essence and identity to the backdrop of his distinction between distinct and confused ideas. I show that Locke draws this traditional distinction in a novel way—as a distinction pertaining only to the way ideas are related to our use of language. This distinction, I argue, allows him to radically rethink traditional questions of metaphysics and to mount a linguistic criticism of traditional metaphysical views (...) about substance, essence and identity. Furthermore, I propose that taking into account the linguistic dimension of Locke's metaphysical thought helps recognize the coherence of his overall picture of substance, essence and identity. (shrink)

I argue that God’s holiness as conceived in Hebrew Scripture grounds human obligations to obey divine commands. To disobey the commands of a holy God would disrespect a basic good, which we have decisive reason to avoid doing. God’s holiness may be a somewhat obscure property––though I propose transcendence and perfect morality as necessary conditions––but His omniscience and perfect morality guarantee that He would not command human beings to do things that His holiness would not ground His authority to command. (...) I conclude by replying to objections. (shrink)

This book draws on the authors' wide range of experience, to provide a greater understanding of the different dimensions of environmental engagement. It is essential reading for students, researchers, and practitioners of architecture, landscape architecture, urban planning, design and health sciences.

As a scientific, materialist worldview becomes increasingly difficult to repudiate, and as philosophers increasingly uncover and articulate the conceptual nature of morality and distinctively moral normativity, the threat of moral anti-realism becomes more and more real. This perspective is argued in Chapter One. Chapter Two discusses how laws and bioethical trends that pertain to the clinical management of patients in a vegetative coma differ from country to country and continue to give rise to unresolved legal debates and scientific controversy. Chapter (...) Three covers how caregivers in palliative care must be supported to better understand patients hopes and needs, making them comfortable to decide when or how much they want to eat. Chapter Four synthesises findings from four empirical studies conducted in Western Africa (Togo) on topics related to the autonomy (end of life decision-making among terminally-ill patients), benevolence and non-malevolence (breaking bad news to elderly patients and their families), and justice (informal payments to physicians, criminal prosecution in cases of HIV transmission) principles of bioethics. Finally, Chapter Five argues that expert members in Ethics committees have an unfair upper-hand, with their decisions trumping other debates in committee deliberations. Qualitative research is brought to bear which illustrates this and which also notes how expertise dilutes the training given to newly appointed ethics committee members. (shrink)

This is a critical study of her four works: a memoir, The Devil that Danced on the Water, and three novels, Ancestor Stones, The Memory of Love and The Hired Man. This study makes the case that Forna's works delve into the historical and political landscapes of Sierra Leone and trace the growth and development of the nation from the pre-colonial to post-independence era. Within this trajectory she engages the legacies of colonialism, post-independence betrayal and disillusionment, political instability, violence and (...) oppression leading to the civil wars of the '90s. (shrink)

Examines art and literature of the Americas through the lens of the questionnaire, a genre as central as the manifesto to the history of the avant-garde. Demonstrates how modernism and the avant-garde were debated at the very moment of their development and consolidation"--Provided by publisher.

Until comparatively recently, say the middle of the last century, spinal cord injury was fatal as pressure sores and other infections took their toll. Those with severe brain injuries, unable to move or even communicate, fared even worse; without movement or feeding such patients were nursed until nature took its course. Over the last few decades medical and nursing advances have enabled some of these vegetative patients to survive for considerable time, provoking, at times, ethical and legal dilemmas. Though they (...) survived, without overt behaviour or clear communication their carers were frequently unsure how much residual function remained. Now real progress is occurring in this area thanks to the application of neuro-scientific methods by some outstanding groups of workers. Subjects with severe brain injury may begin in complete, unresponsive coma but then ‘lighten’ to one of three categories. In vegetative state (VS), patients are apparently awake but without evidence of voluntary behaviour and have no apparent awareness of self or environment, whilst in minimally conscious state (MCS) patients have some behaviour beyond the reflex but are not able to communicate effectively. These conditions usually result from widespread brain damage at either or both cortical and subcortical levels due to injury or anoxia, though they can also be seen in end stage neurological conditions like Alzheimer’s. In locked in syndrome (LIS), patients ‘awake’ from coma, usually due to stroke, aware of their surroundings and their situation but unable to speak or move, beyond eye lid control and eye movement. For many, LIS will be recognised from Bauby’s extraordinary account in ‘The Diving Bell and the Butterfly,’ though, incidentally, it was presaged in Samuel Beckett’s novella ‘The Unnameable.’ LIS reflects a profound disconnection between brain and body, except for the upper cranial nerves involved in eyelid movement. The overriding question is how much awareness these patients have.. (shrink)

La pensée d'une violence intrinsèque au logos demeure largement marginale dans les sciences du langage. Ce livre, à vocation à la fois archéologique et prospective, réévalue le potentiel de cette violence du logos en faisant dialoguer spécialistes de philosophie, de sciences du texte et de littérature.

To understand the endogenous components of the event-related brain potential (ERP), we must use data about the components' antecedent conditions to form hypotheses about the information-processing function of the underlying brain activity. These hypotheses, in turn, generate testable predictions about the consequences of the component. We review the application of this approach to the analysis of the P300 component. The amplitude of the P300 is controlled multiplicatively by the subjective probability and the task relevance of the eliciting events, whereas its (...) latency depends on the duration of stimulus evaluation. These and other factors suggest that the P300 is a manifestation of activity occurring whenever one's model of the environment must be revised. Tests of three predictions based on this “context updating” model are reviewed. Verleger's critique is based on a misconstrual of the model as well as a partial and misleading reading of the relevant literature. (shrink)

In Theologie und Wissenschaft bei Petrus Aureoli, Florian Wöller offers an account of the theories of science and of theology as they emerge from Peter Auriol's (c. 1280-1322) commentaries on the Sentences.

Thomas Aquinas, one of the "founding fathers" of just war theory, offers an account of virtuous warfare in practice. The author argues that Aquinas's approach to warfare, with its emphasis on justice and charity, is helpful in providing a coherent moral account of war to which Christians can subscribe. Particular attention is given to the role of charity, since this virtue is the distinguishing characteristic of the Christian soldier. Charity compels him to soldier justly, and by fighting justly, he is (...) elevated by God to friendship with God. Notable features of this approach are its emphasis on the criteria for judging whether a war is just and its relativizing of the criteria for proper combat behavior. (shrink)

ABSTRACT Liberal political philosophy has little of interest to say about the social liberty of the physically disabled. It accepts that the physically disabled and the able‐bodied are equally at liberty, even though the former can do far less than the latter; and it concludes that there are no interesting political statements we can make about their situation. In this essay, I assume that the physically disabled are unfree, not merely unable, to use public facilities which do not take their (...) disability into account, thereby excluding them. I criticise liberal theories of liberty by exposing and questioning the assumptions which entail the liberal theorist's rejecting this claim. I conclude that there is a form of negative liberty which does enable the liberal theorist to make political statements about the freedom of the disabled [1]. (shrink)