ulations and show that they are definable by a trivial kind of coequation— namely, over one "color". We end with an example of a covariety which is not closed under bisimulations.

Steve Awodey and Jesse Hughes. Modal Operators and the Formal Dual of Birkhoff's Completeness Theorem.

Steve Awodey and Jesse Hughes. The Coalegebraic Dual of Birkoff's Variety Theorem.

This thesis is intended t0 help develop the theory 0f coalgebras by, Hrst, taking classic theorems in the theory 0f universal algebras amd dualizing them and, second, developing an interna] 10gic for categories 0f coalgebras. We begin with an introduction t0 the categorical approach t0 algebras and the dual 110tion 0f coalgebras. Following this, we discuss (c0)a,lg€bra.s for 2. (c0)monad and develop 2. theory 0f regular subcoalgebras which will be used in the interna] logic. We also prove that categories 0f (...) coalgebras are completc, under reasonably weak conditions, and simultaneously prove the wellknown dual result for categories 0f algebras. We dose the second chapter with 2. discussion 0f bisimulations in which we introduce a weaker 110tion 0f bisimulaticn than is current in the literature, but which is w€H—b€ha.v€d and reduces t0 the standard defmition under the assumption 0f choice. (shrink)

It is a familiar idea that in learning to do philosophy we have to acquire new habits of thought, a supposition that may help explain why it does not happen quickly and why, especially in retrospect, the process has something of the feeling of an upbringing, of being gradually drawn into a distinctive way of life. Familiar also, to many, will be the instruction to concentrate purely on the arguments of those philosophers we study, ignoring the irrelevancies of character and (...) biography, advice seemingly aimed at a happy coincidence of moral and intellectual virtue, ruling out, as it does, the recourse to personal criticism in philosophical discussion.Yet if philosophy is correctly to be approached as a structure of ideas, detached from the life of its creators, why was it so intriguing, as students, to find, occasionally, a picture of the author on the dust jacket of our set text, and why were we so curious about the characters of the speakers invited to philosophy society? Partly, no doubt, this interest was, and is, no more than a natural curiosity about people from whom we might expect to learn, an entirely understandable attitude, and not necessarily trivial, but one with no essential connection to the subject. Yet reading Alex Voorhoeve’s beautifully produced collection of his conversations with 11 thinkers on ethics does make one wonder whether the personal has some further bearing on philosophy, and if so how this might be and with what significance. Perhaps even the dust jacket reflects this query, with 10 of the interviewees caught by Steve Pyke’s striking photographs, their faces sharply lit, yet not as we would ever meet them, emerging somewhat eerily from an impenetrably black background. All are reproduced in a larger format inside, together with an uncredited photograph of the 11th in an instructively contrasting style. (shrink)

Uncoupling proteins (UCPs) regulate mitochondrial function, and thus cellular metabolism. Angiotensin‐converting enzyme (ACE) is the central component of endocrine and local tissue renin–angiotensin systems (RAS), which also regulate diverse aspects of whole‐body metabolism and mitochondrial function (partly through altering mitochondrial UCP expression). We show that ACE expression also appears to be regulated by mitochondrial UCPs. In genetic analysis of two unrelated populations (healthy young UK men and Scandinavian diabetic patients) serum ACE (sACE) activity was significantly higher amongst UCP3‐55C (rather than (...) T) and UCP2 I (rather than D) allele carriers. RNA interference against UCP2 in human umbilical vein endothelial cells reduced UCP2 mRNA sixfold (P < 0·01) whilst increasing ACE expression within a physiological range (<1·8‐fold at 48 h; P < 0·01). Our findings suggest novel hypotheses. Firstly, cellular feedback regulation may occur between UCPs and ACE. Secondly, cellular UCP regulation of sACE suggests a novel means of crosstalk between (and mutual regulation of) cellular and endocrine metabolism. This might partly explain the reduced risk of developing diabetes and metabolic syndrome with RAS antagonists and offer insight into the origins of cardiovascular disease in which UCPs and ACE both play a role. (shrink)

It is argued that Hume’s definition of miracle stands in need of revision because it fails to be inclusive of acts of supernatural intervention in the world which are non-law-violating. Potential revisions of the definition, due to Paul Dietl and Christopher Hughes are considered and found to be inadequate, and a new definition is put forward; a miracle is "an intended outcome of an intervention in the natural world by a supernatural agent." An objection to this definition is anticipated (...) and a distinction is made between miracles and magic in order to address the objection. (shrink)

The late Joseph Grange is perhaps the most sharply focused and elegantly lucid of the group of North American philosophers to build new aesthetic metaphysical visions from the legacies of process philosophy and pragmatism. His peers include, among others, George Allan,1 Roger Ames,2 Chung-ying Cheng,3 Robert Corrington,4 Frederick Ferre,5 Warren Frisina,6 David L. Hall,7 Judith Jones,8 Elizabeth Kraus,9 Hugh P. McDonald,10 Steve Odin,11 Sandra Rosenthal,12 Robert Smid,13 David Weissman,14 and myself, along with our many students and colleagues. This group (...) has widely variant systems, yet what unites us is an emphasis on the aesthetic and a lack of the fear to enter deeply into metaphysics when relevant.. (shrink)

R.I.G Hughes offers the first detailed and accessible analysis of the Hilbert-space models used in quantum theory and explains why they are so successful.

A general account of modeling in physics is proposed. Modeling is shown to involve three components: denotation, demonstration, and interpretation. Elements of the physical world are denoted by elements of the model; the model possesses an internal dynamic that allows us to demonstrate theoretical conclusions; these in turn need to be interpreted if we are to make predictions. The DDI account can be readily extended in ways that correspond to different aspects of scientific practice.

Hugh Lacey (1939) é pesquisador emérito na Swarthmore College, Pennsylvania, Estados Unidos, onde começou a lecionar em 1972. É Doutor em História e Filosofia da Ciência pela Universidade de Indiana (EUA), tendosido professor visitante na Universidade de São Paulo em diversas ocasiões (1973, 1996, 2000 e 2004). Seus trabalhos atribuem lugares próprios aos valores dentro da tecnociência, procurando mostrar que a abordagem científica materialista precisa assumir também o lugar que as coisas ocupam em sistemas ecológicos e sociais. Lacey é autor (...) de diversos artigos e livros, entre os quais estão Valores e Atividade Científica 1, Valores e Atividade Científica 2, A Controvérsia sobre os transgênicos: questões científicas e éticas, entre outros. (shrink)

R.I.G. Hughes presents a series of eight philosophical essays on the theoretical practices of physics. The first two essays examine these practices as they appear in physicists' treatises (e.g. Newton's Principia and Opticks ) and journal articles (by Einstein, Bohm and Pines, Aharonov and Bohm). By treating these publications as texts, Hughes casts the philosopher of science in the role of critic. This premise guides the following 6 essays which deal with various concerns of philosophy of physics such (...) as laws, disunities, models and representation, computer simulation, explanation, and the discourse of physics. (shrink)

Saul Kripke, in a series of classic writings of the 1960s and 1970s, changed the face of metaphysics and philosophy of language. Christopher Hughes offers a careful exposition and critical analysis of Kripke's central ideas about names, necessity, and identity. He clears up some common misunderstandings of Kripke's views on rigid designation, causality and reference, and the necessary a posteriori and contingent a priori. Through his engagement with Kripke's ideas Hughes makes a significant contribution to ongoing debates on, (...) inter alia, the semantics of natural kind terms, the nature of natural kinds, the essentiality of origin and constitution, the relative merits of 'identitarian' and counterpart-theoretic accounts of modality, and the identity or otherwise of mental types and tokens with physical types and tokens. No specialist knowledge in either the philosophy of language or metaphysics is presupposed; Hughes's book will be valuable for anyone working on the ideas which Kripke made famous in the philosophy world. (shrink)

This is an opinionated guide to the literature on epistemic dilemmas. It discusses seven kinds of situations where epistemic dilemmas appear to arise; dilemmic, dilemmish, and non-dilemmic takes on them; and objections to dilemmic views along with dilemmist’s replies to them.

Hugh H. Benson explores Plato's answer to Clitophon's challenge, the question of how one can acquire the knowledge Socrates argues is essential to human flourishing-knowledge we all seem to lack. Plato suggests two methods by which this knowledge may be gained: the first is learning from those who already have the knowledge one seeks, and the second is discovering the knowledge one seeks on one's own. The book begins with a brief look at some of the Socratic dialogues where Plato (...) appears to recommend the former approach while simultaneously indicating various difficulties in pursuing it. The remainder of the book focuses on Plato's recommendation in some of his most important and central dialogues-the Meno, Phaedo, and Republic-for carrying out the second approach: de novo inquiry. The book turns first to the famous paradox concerning the possibility of such an inquiry and explores Plato's apparent solution. Having defended the possibility of de novo inquiry as a response to Clitophon's challenge, Plato explains the method or procedure by which such inquiry is to be carried out. The book defends the controversial thesis that the method of hypothesis, as described and practiced in the Meno, Phaedo, and Republic, is, when practiced correctly, Plato's recommended method of acquiring on one's own the essential knowledge we lack. The method of hypothesis when practiced correctly is, then, Platonic dialectic, and this is Plato's response to Clitophon's challenge. (shrink)

Steve Coutinho explores in detail the fundamental concepts of Daoist thought as represented in three early texts: the _Laozi_, the _Zhuangzi_, and the _Liezi_. Readers interested in philosophy yet unfamiliar with Daoism will gain a comprehensive understanding of these works from this analysis, and readers fascinated by ancient China who also wish to grasp its philosophical foundations will appreciate the clarity and depth of Coutinho's explanations. Coutinho writes a volume for all readers, whether or not they have a background (...) in philosophy or Chinese studies. A work of comparative philosophy, this volume also integrates the concepts and methods of contemporary philosophical discourse into a discussion of early Chinese thought. The resulting dialogue relates ancient Chinese thought to contemporary philosophical issues and uses modern Western ideas and approaches to throw new interpretive light on classical texts. Rather than function as historical curiosities, these works act as living philosophies in conversation with contemporary thought and experience. Coutinho respects the multiplicity of Daoist philosophies while also revealing a distinctive philosophical sensibility, and he provides clear explanations of these complex texts without resorting to oversimplification. (shrink)

Introduction: occupation -- Impossibilities -- Irreconcilability -- Kaddish -- Authoritarianism: a case study -- Rosenzweig's patient -- Beyond.

Let's make a rhythm -- The beginnings of rhythm -- Varying rhythms -- Sources of rhythm -- The rhythms of nature -- Rhythms of music -- Rhythm and words -- Some mysteries of rhythm -- Athletics -- Broken rhythms -- Machines -- Rhythms may be felt--and smelled -- Unseen rhythms -- Rhythms in daily life -- Furniture -- How rhythms take shape -- This wonderful world.

Hyman (1999, 2006) argues that knowledge is best conceived as a kind of ability: S knows that p iff S can φ for the reason that p. Hyman motivates this thesis by appealing to Gettier cases. I argue that it is counterexampled by a certain kind of Gettier case where the fact that p is a cause of the subject’s belief that p. One can φ for the reason that p even if one does not know that p. So knowledge (...) is not best conceived as an ability of this kind. (shrink)

[I] Divine Simplicity: God and His Existence Types of Divine Simplicity Of the properties ascribed to God in Aquinas' natural theology, we may call one sort ...

While the early Platonic dialogues have often been explored and appreciated for their ethical content, this is the first book devoted solely to the epistemology of Plato's early dialogues. Author Hugh H. Benson argues that the characteristic features of these dialogues- -Socrates' method of questions and answers, his fascination with definition, his professions of ignorance, and his thesis that virtue is knowledge- -are decidedly epistemological. In this thoughtful study, Benson uncovers the model of knowledge that underlies these distinctively Socratic views. (...) What emerges is unfamiliar, yet closer to a contemporary conception of scientific understanding than ordinary knowledge. (shrink)

John Buridan was a fourteenth-century philosopher who enjoyed an enormous reputation for about two hundred years, was then totally neglected, and is now being 'rediscovered' through his relevance to contemporary work in philosophical logic. The final chapter of Buridan's Sophismata deals with problems about self-reference, and in particular with the semantic paradoxes. He offers his own distinctive solution to the well-known 'Liar Paradox' and introduces a number of other paradoxes that will be unfamiliar to most logicians. Buridan also moves on (...) from these problems to more general questions about the nature of propositions, the criteria of their truth and falsity and the concepts of validity and knowledge. This edition of that chapter is intended to make Buridan's ideas and arguments accessible to a wider range of readers. The volume should interest many philosophers, linguists and logicians, who are increasingly finding in medieval work striking anticipations of their own concerns. (shrink)

Christopher Hughes; XII*—Is A Thing Just The Sum Of Its Parts?, Proceedings of the Aristotelian Society, Volume 86, Issue 1, 1 June 1986, Pages 213–234, https:/.

Disturbances to one's sense of self, the feeling that one has ‘lost a part of oneself’ or that one ‘no longer feels like oneself,’ are frequently recounted throughout the bereavement literature. Engaging Allan Køster's important contribution to this issue, this article reinforces his suggestion that, by rupturing the existential texture of self-familiarity, bereavement can result in experiences of estrangement that can be meaningfully understood according to the concept of self-alienation. Nevertheless, I suggest that whilst Køster's relational interpretation of alienation as (...) the withdrawal of heteronomy can be applied to the experience of world-collapse in bereavement, what sets bereavement apart from other limit situations is the fact that it involves an intersubjective relation between the living and the dead. In contrast to Køster, therefore, I suggest that the experience of self-alienation that is distinctive to bereavement results from the fact that the bereaved is exposed to, and co-opted by, the absolute alterity of death itself. (shrink)

In this paper I consider, in connection with dementia, two views of the person. One view of the person is derived from Locke and Parfit. This tends to regard the person solely in terms of psychological states and his/her connections. The second view of the person is derived from a variety of thinkers. I have called it the situated-embodied-agent view of the person. This view, I suggest, more readily squares with the reality of clinical experience. It regards the person as (...) embedded in a history and culture. The human person is also an embodied agent. I contend that this view encourages a more appropriate approach towards the ethical issues that arise in dementia and towards people with dementia. (shrink)

_Transcendence and History_ is an analysis of what philosopher Eric Voegelin described as “the decisive problem of philosophy”: the dilemma of the discovery of transcendent meaning and the impact of this discovery on human self-understanding. The explicit recognition and symbolization of transcendent meaning originally occurred in a few advanced civilizations worldwide during the first millennium?.?.e. The world’s major religious and wisdom traditions are built upon the recognition of transcendent meaning, and our own cultural and linguistic heritage has long since absorbed (...) the postcosmological division of reality into the two dimensions of “transcendence” and “immanence.” But the last three centuries in the West have seen a growing resistance to the idea of transcendent meaning; contemporary and “postmodern” interpretations of the human situation—both popular and intellectual—indicate a widespread eclipse of confidence in the truth of transcendence. In _Transcendence and History_, Glenn Hughes contributes to the understanding of transcendent meaning and the problems associated with it and assists in the philosophical recovery of the legitimacy of the notion of transcendence. Depending primarily on the treatments of transcendence found in the writings of twentieth-century philosophers Eric Voegelin and Bernard Lonergan, Hughes explores the historical discovery of transcendent meaning and then examines what it indicates about the structure of history. Hughes’s main focus, however, is on clarifying the problem of transcendence in relation to historical _existence_. Addressing both layreaders and scholars, Hughes applies the insights and analyses of Voegelin and Lonergan to considerable advantage. _Transcendence and History_ will be of particular value to those who have grappled with the notion of transcendence in the study of philosophy, comparative religion, political theory, history, philosophical anthropology, and art or poetry. By examining transcendent meaning as the key factor in the search for ultimate meaning from ancient societies to the present, the book demonstrates how “the decisive problem of philosophy” both illuminates and presents a vital challenge to contemporary intellectual discourse. (shrink)

A recent focus of the debate on conscientious objection in healthcare is the question of whether practitioners should have to justify their refusal to perform certain functions. A recent article by Cowley addresses a practical aspect of this controversy, namely the question of whether doctors claiming conscientious objector status in relation to abortion should be required, like their counterparts claiming exemption from military conscription, to defend their claim before a tribunal. Cowley argues against the use of tribunals in the medical (...) case, on the grounds that there are likely to be fewer unjustified claims to conscientious objection in this context than in the military, and that in any case tribunals will not be an effective way of distinguishing genuine and false cases. I reject these arguments and propose a different conception of the role of a medical conscientious objection tribunal. (shrink)

Locke thought that it was impossible for there to be two things of the same kind in the same place at the same time. I offer (what looks to me like) a counterexample to that principle, involving two ships in the same place at the same time. I then consider two ways of explaining away, and one way of denying, the apparent counterexample of Locke's principle, and I argue that none is successful. I conclude that, although the case under discussion (...) does not refute Locke's principle, it constitutes a serious challenge to it. (shrink)