In this 6-year, multi-study paper we summarize a new and effective framework of single-session problem-solving developed in an elite sport context at a world leading national institute of sport science and medicine. In Study 1, we used ethnography to observe how single-session problem-solving methods were being considered, explored, introduced and developed within the EIS. In Study 2, we used case-study methods split into two parts. A multiple case-study design was employed in Part one to evaluate how the approach was refined (...) into an effective framework of practice. An individual case-study is then illustrated to detail the framework in-action. Collectively, findings realized a framework of single-session problem-solving for use both inside and outside of elite sport that focused on ways to reframe clients’ problems into more ‘solvable’ descriptions. Guidance for psychologists wishing to integrate these problem-solving techniques into their practice are offered. (shrink)

Tim Crane maintains that beliefs cannot be conscious because they persist in the absence of consciousness. Conscious judgments can share their contents with beliefs, and their occurrence can be evidence for what one believes; but they cannot be beliefs, because they don’t persist. I challenge Crane’s premise that belief attributions to the temporarily unconscious are literally true. To say of an unconscious agent that she believes that p is like saying that she sings well. To say she sings well is (...) to say that when she sings, her singing is good. To say that she believes that p is to say that when she consciously considers the content that p she consciously affirms it. I also argue that the phenomenal view of intentional content Crane appears to endorse prima facie commits him to the view, at least controversial, perhaps incoherent, that there is unconscious phenomenology. Keywords : Belief; Consciousness; Unconscious; Intentional Content; Judgment. Credenze coscienti Riassunto: Tim Crane sostiene che le credenze non possano essere coscienti, dal momento che perdurano anche in assenza di coscienza. I giudizi formulati consapevolmente possono condividere i loro contenuti con le credenze e il loro verificarsi può essere una forma di evidenza a supporto di quanto uno crede. E tuttavia essi non possono essere credenze, dal momento che non perdurano. Nel commento metto in discussione la premessa di Crane secondo cui porre l’attribuzione di credenze su un piano temporaneamente inconscio sia vero in senso letterale. Dire di un agente non cosciente che esso creda che p è come dire che canti bene. Dire che canti bene è dire che quando canta, il suo canto è buono. Dire che crede che p è dire che quando considera consapevolmente il contenuto p costui lo afferma consapevolmente. Inoltre intendo affermare che la visione fenomenica del contenuto intenzionale che Crane sembra abbracciare lo impegni prima facie nei confronti della prospettiva, quantomeno controversa e probabilmente incoerente, secondo cui esisterebbe una dimensione fenomenica inconscia. Parole chiave: Credenza; Coscienza; Inconscio; Contenuto intenzionale; Giudizio. (shrink)

The history of wine-drinking is a history of excess. From Noah’s disastrous first experiments and the bacchanalia of the ancient Greeks to the spectacular overindulgence described in the diaries of Evelyn Waugh, the consumption of wine to excess has been a recurrent theme among those drink and those who write about it. Sometimes the quantities consumed by the drinkers of the past are staggering. According to Roy Porter’s English Society in the Eighteenth Century, ‘to gain a reputation as a blade (...) one had to be at least a three-bottle man. Sheridan, Pitt the Younger, and the Greek scholar Porson were all said to be six-bottle men’. One cannot help wondering whether they meant the same by ‘bottle’ as we do... (shrink)

A modest proposal concerning laws, counterfactuals, and explanations - - Why be Humean? -- Suggestions from physics for deep metaphysics -- On the passing of time -- Causation, counterfactuals, and the third factor -- The whole ball of wax -- Epilogue : a remark on the method of metaphysics.

This concise book introduces nonphysicists to the core philosophical issues surrounding the nature and structure of space and time, and is also an ideal resource for physicists interested in the conceptual foundations of space-time theory. Tim Maudlin's broad historical overview examines Aristotelian and Newtonian accounts of space and time, and traces how Galileo's conceptions of relativity and space-time led to Einstein's special and general theories of relativity. Maudlin explains special relativity using a geometrical approach, emphasizing intrinsic space-time structure rather than (...) coordinate systems or reference frames. He gives readers enough detail about special relativity to solve concrete physical problems while presenting general relativity in a more qualitative way, with an informative discussion of the geometrization of gravity, the bending of light, and black holes. Additional topics include the Twins Paradox, the physical aspects of the Lorentz-FitzGerald contraction, the constancy of the speed of light, time travel, the direction of time, and more.Introduces nonphysicists to the philosophical foundations of space-time theory Provides a broad historical overview, from Aristotle to Einstein Explains special relativity geometrically, emphasizing the intrinsic structure of space-time Covers the Twins Paradox, Galilean relativity, time travel, and more Requires only basic algebra and no formal knowledge of physics. (shrink)

Feminists today are re-imagining nature, biology, and matter in feminist thought and critically addressing new developments in biology, physics, neuroscience, epigenetics and other scientific disciplines. Mattering, edited by noted feminist scholar Victoria Pitts-Taylor, presents contemporary feminist perspectives on the materialist or ‘naturalizing’ turn in feminist theory, and also represents the newest wave of feminist engagement with science. The volume addresses the relationship between human corporeality and subjectivity, questions and redefines the boundaries of human/non-human and nature/culture, elaborates on the entanglements of (...) matter, knowledge, and practice, and addresses biological materialization as a complex and open process. This volume insists that feminist theory can take matter and biology seriously while also accounting for power, taking materialism as a point of departure to rethink key feminist issues. The contributors, an international group of feminist theorists, scientists and scholars, apply concepts in contemporary materialist feminism to examine an array of topics in science, biotechnology, biopolitics, and bioethics. These include neuralplasticity and the brain-machine interface; the use of biometrical identification technologies for transnational border control; epigenetics and the intergenerational transmission of the health effects of social stigma; ADHD and neuropharmacology; and randomized controlled trials of HIV drugs.A unique and interdisciplinary collection, Mattering presents in grounded, concrete terms the need for rethinking disciplinary boundaries and research methodologies in light of the shifts in feminist theorizing and transformations in the sciences. (shrink)

Detlef Dürr was a remarkable figure in many different ways. I recall some adventures we had with him in Abu Dhabi.

The Quality of Thought develops and defends the thesis that thinking is a kind of experience, characterized by a sui generis (“cognitive”) phenomenology, determinates of which are thought contents—what I call the phenomenal intentionality of thought thesis. It draws out the implications of this thesis for issues in philosophy of mind, philosophy of language and metaphysics. The view defended is radically internalist and intensionalist, and thus goes against received doctrines in philosophy of mind (externalism) and language (extensionalism). It also advocates (...) for a metaphysically neutral, non-naturalistic approach to the philosophical study of mind—what I call “Analytic Phenomenology”—in combination with agnosticism about the nature of the relationship between consciousness and physical reality. -/- The book identifies persistent problems with Dretske-inspired causal-informational-teleological theories of conceptual content, and diagnoses them as due to leaving out what it’s like to think a thought—to entertain or grasp a propositional (conceptual) content. It is thus a contribution to the increasingly influential Phenomenal Intentionality Research Program. It includes refutations of classic externalism (Putnam and Burge) and arguments that standard motivations for direct reference theories of names (Kripke), indexicals and demonstratives (Kaplan) are not inevitable, and alternative accounts of their (and their conceptual equivalents’) semantics. It also addresses outstanding challenges to the phenomenal intentionalist view of thought content, including the existence of unconscious thought, the elusiveness of conceptual phenomenology, the matching content problem, phenomenal compositionality, and the determination of conceptual reference. (shrink)

John McDowell's contribution to philosophy has ranged across Greek philosophy, philosophy of language, philosophy of mind, metaphysics and ethics. His writings have drawn on the works of, amongst others, Aristotle, Kant, Hegel, Frege, Russell, Wittgenstein, Sellars, and Davidson. His contributions have made him one of the most widely read, discussed and challenging philosophers writing today. This book provides a careful account of the main claims that McDowell advances in a number of different areas of philosophy. The interconnections between the different (...) arguments are highlighted and Tim Thornton shows how these individual projects are unified in a post-Kantian framework that articulates the preconditions of thought and language. Thornton sets out the differing strands of McDowell's work prior to, and leading up to, their combination in the broader philosophical vision revealed in "Mind and World" and provides an interpretative and critical framework that will help shape ongoing debates surrounding McDowell's work. An underlying theme of the book is whether McDowell's therapeutic approach to philosophy, which owes much to the later Wittgenstein, is consistent with the substance of McDowell's discussion of nature that uses the vocabulary of other philosophers including, centrally, Kant. (shrink)

Quantum Non-Locality and Relativity is recognized as the premier philosophical study of Bell's Theorem and its implication for the relativistic account of space and time. Previous editions have been praised for the remarkable clarity of Maudlin's descriptions of both Bell's theorem and his examination of the potential conflict between the theorem and relativity. The third edition of this text has been carefully updated to reflect significant developments, including a new chapter covering important recent work in the foundations of physics. Foremost (...) among these is Roderich Tumiulka's explicit, relativistic theory that can reproduce the quantum mechanical violation of Bell's inequality. The "Free Will Theorem" of John Conway and Simon Kochen is also discussed, as is the status of locality in the Many Worlds interpretation of quantum theory. The book has also been updated to reflect recent results in information theory. The book introduces philosophers to the relevant physics and demonstrates how philosophical analysis can help to resolve some of the problems, and requires no technical background in Physics. All of the physics is presented from first principles, and as much as possible is presented pictorially"--Provided by publisher. (shrink)

I argue that Norton & Earman's hole argument, despite its historical association with General Relativity, turns upon very general features of any linguistic system that can represent substances by names. After exploring various means by which mathematical objects can be interpreted as representing physical possibilities, I suggest that a form of essentialism can solve the hole dilemma without abandoning either determinism or substantivalism. Finally, I identify the basic tenets of such an essentialism in Newton's writings and consider how they can (...) be updated to apply to the case provided by General Relativity. (shrink)

This paper replies a number of objections brought against the solution to Jennifer Saul's puzzle of failure of substitutivity in transparent contexts presented in my 2001 paper "Alter Egos and Their Names".

John McDowell is one of the most widely read philosophers in recent years. His engagement with a philosophy of language, mind and ethics and with philosophers ranging from Aristotle and Wittgenstein to Hegel and Gadamer make him one of the most original and outstanding philosophical thinkers of the post-war period. In this clear and engaging book Tim Thornton introduces and examines the full range of McDowell's thought. After a helpful introduction setting out McDowell's general view of philosophy Thornton introduces and (...) explains the following topics: • Wittgenstein on philosophy, normativity and understanding • value judgements • theories of meaning and sense • singular thought and Cartesianism • experience, knowledge and openness to the world • Mind and World and idealism • action and the debate with Hubert Dreyfus on conceptual content and skilled coping. This second edition has been significantly revised and expanded to include new sections on: McDowell's work on disjunctivism and criticisms of it; a new chapter on McDowell's modification of his account of perceptual experience and conceptual content and criticisms by Charles Travis; and a new chapter on action and McDowell's engagement with Hubert Dreyfus and the debate concerning skilled coping and mindedness. The addition of a glossary makes John McDowell, second edition essential reading for those studying McDowell, philosophy of language, philosophy of mind, ethics and epistemology, as well as for students of the recent history of analytical philosophy generally. Tim Thornton is Professor of Philosophy and Mental Health at University of Central Lancashire, UK. He is author of Essential Philosophy of Psychiatry (2007), Wittgenstein on Language and Thought (1998), co-author of the Oxford Textbook of Philosophy and Psychiatry (2006), and Tacit Knowledge (2013) and co-editor of the Oxford Handbook of Philosophy and Psychiatry (2013). (shrink)

Philosophers have long endeavored to support politically relevant efforts, including institutional and legal reforms, insurrectionist uprisings, anticolonial independence struggles, cultural movements, and anti‐violence work. While some debates have emerged regarding normative questions of whether or how philosophers should be activists, this chapter focuses more directly on the manner in which philosophical authors have supported, engaged in, or examined forms of political participation that seek to end forms of oppression such as racism, sexism, colonialism, and systemic poverty. It distinguishes between philosophers (...) who are writing about or in support of forms of political activism and social movements. The chapter explores specific activists and movements that have become relevant within academic philosophy. It examines philosophers who have engaged in direct political action while working within academic philosophy. (shrink)

This volume brings together many prominent philosophical voices today focusing on issues of U. S. Latinx and Latin American identities and feminist theory. As such, the essays collected here highlight the varied and multidimensional aspects of gender, racial, cultural, and sexual questions impacting U.S. Latinx and Latin American communities today. The collection also highlights a number of important threads of analysis from fields as diverse as disability studies,aesthetics, literary theory, and pop culture studies.

Adventures in cutting-edge ideas about consciousness, from bestselling non-fiction writer Tim Parks. Hardly a day goes by without some discussion about whether computers can be conscious, whether our universe is some kind of simulation, whether mind is a unique quality of human beings or spread out across the universe like butter on bread. Most philosophers believe that our experience is locked inside our skulls, an unreliable representation of a quite different reality outside. Colour, smell and sound, they tell us, occur (...) only in our heads. Yet when neuroscientists look inside our brains to see what's going on, they find only billions of neurons exchanging electrical impulses and releasing chemical substances. Five years ago, in a chance conversation, Tim Parks came across a radical new theory of consciousness that undercut this interpretation. This set him off on a quest to discover more about this fascinating topic and also led him to observe his own experience with immense attention. Out of My Head tells the gripping, highly personal, often surprisingly funny, story of Tim Parks' quest to discover more about this fascinating topic. It frames complex metaphysical considerations and technical laboratory experiments in terms we can all understand. Above all, it invites us to see space, time, colour and smell, sounds and sensations in an entirely new way. The world will feel more real after reading it. (shrink)

The Meno is one of the foundational dialogues of the Platonic tradition - it initiates a series of investigations into subjects which lie at the heart of philosophy: What is virtue? How is it acquired?This edition of Taylor's revision of Sydenham's translation adds three introductory essays by Tim Addley and an extract from Procclus' commentary on The Republic on Virtue.

Essential Philosophy of Psychiatry is a concise introduction to the growing field of philosophy of psychiatry. Divided into three main aspects of psychiatric clinical judgement, values, meanings and facts, it examines the key debates about mental health care, and the philosophical ideas and tools needed to assess those debates, in six chapters. In addition to outlining the state of play, Essential Philosophy of Psychiatry presents a coherent and unified approach across the different debates, characterized by a rejection of reductionism and (...) an emphasis on the ineliminability of uncodified skilled judgement. The first part, Values, outlines the debate about whether diagnosis of mental illness is essentially value-laden and argues that the prospects for reducing illness or disease to plainly factual matters are poor. It also explains the important role of skilled contextual judgement, rather than a principles-based deduction, in ethical judgement. The second part, Meanings, examines the central role of understanding and a shared first person perspective, both against attempts to reduce meaning to basic information-processing mechanisms and to explain away the difficulties of understanding psychopathology in recent models of delusion. The third part, Facts, shows the importance of uncodified clinical judgements, both in assessing the validity of psychiatric taxonomy and in the application of Evidence Based Medicine. Despite advances in the codifaction of practice and operationalism of diagnosis, an element of judgement remains in the assessment both of what, at one level, is good evidence for diagnosis and treatment and what, at a higher level, is good evidence for the validity of classification overall. (shrink)

Shadow pictures radically changed the modern understanding of pictorial concepts. Tim Otto Roth’s broadly based cultural history traces the consequences of this revolution of methods of vision and image production in the sciences and the arts. By means of abundant image and text sources he develops a picture theory based on physics and projective geometry. This definitive book comprising 500 pages provides a generally understandable and vivid insight in the history of shadowgraphs from the 19th century until the present age. (...) A crucial role play scientific processes as the X-ray technique, but also the artistic examination of space and body. (shrink)

本书是叶锦添艺术随笔集,囊括他在服装,舞台,电影美术,视觉艺术,当代艺术创作等多元领域的美学观点与实践层面的探索,承袭了讲求意境的中国审美传统,游走于东方美学中两种不同的美感之间,以充满创意与可能性, 流美华丽的表达方式,向世人展示了一个富有东方诗意的艺术世界,诠释了独树一帜的艺术主张,以及从传统与文化中生发创意的方法.

This chapter contains sections titled: Limits for Uncommunicative Partners How Much Does a Particle Need to Know? Evaluation of Results Simulators Does Nature Simulate?

Because of the “all-or-none” character of nervous activity, neural events and the relations among them can be treated by means of propositional logic. It is found that the behavior of every net can be described in these terms, with the addition of more complicated logical means for nets containing circles; and that for any logical expression satisfying certain conditions, one can find a net behaving in the fashion it describes. It is shown that many particular choices among possible neurophysiological assumptions (...) are equivalent, in the sense that for every net behaving under one assumption, there exists another net which behaves under the other and gives the same results, although perhaps not in the same time. Various applications of the calculus are discussed. (shrink)

James L. Anderson analyzed the novelty of Einstein's theory of gravity as its lack of "absolute objects." Michael Friedman's related work has been criticized by Roger Jones and Robert Geroch for implausibly admitting as absolute the timelike 4-velocity field of dust in cosmological models in Einstein's theory. Using the Rosen-Sorkin Lagrange multiplier trick, I complete Anna Maidens's argument that the problem is not solved by prohibiting variation of absolute objects in an action principle. Recalling Anderson's proscription of "irrelevant" variables, I (...) generalize that proscription to locally irrelevant variables that do no work in some places in some models. This move vindicates Friedman's intuitions and removes the Jones-Geroch counterexample: some regions of some models of gravity with dust are dust-free and so naturally lack a timelike 4-velocity, so diffeomorphic equivalence to is spoiled. Torretti's example involving constant curvature spaces is shown to have an absolute object on Anderson's analysis, viz., the conformal spatial metric density. The previously neglected threat of an absolute object from an orthonormal tetrad used for coupling spinors to gravity appears resolvable by eliminating irrelevant fields. However, given Anderson's definition, GTR itself has an absolute object : a change of variables to a conformal metric density and a scalar density shows that the latter is absolute. (shrink)

James L. Anderson analyzed the novelty of Einstein's theory of gravity as its lack of "absolute objects." Michael Friedman's related work has been criticized by Roger Jones and Robert Geroch for implausibly admitting as absolute the timelike 4-velocity field of dust in cosmological models in Einstein's theory. Using the Rosen-Sorkin Lagrange multiplier trick, I complete Anna Maidens's argument that the problem is not solved by prohibiting variation of absolute objects in an action principle. Recalling Anderson's proscription of "irrelevant" variables, I (...) generalize that proscription to locally irrelevant variables that do no work in some places in some models. This move vindicates Friedman's intuitions and removes the Jones-Geroch counterexample: some regions of some models of gravity with dust are dust-free and so naturally lack a timelike 4-velocity, so diffeomorphic equivalence to is spoiled. Torretti's example involving constant curvature spaces is shown to have an absolute object on Anderson's analysis, viz., the conformal spatial metric density. The previously neglected threat of an absolute object from an orthonormal tetrad used for coupling spinors to gravity appears resolvable by eliminating irrelevant fields. However, given Anderson's definition, GTR itself has an absolute object : a change of variables to a conformal metric density and a scalar density shows that the latter is absolute. (shrink)

It is a commonplace in the philosophy of physics that any local physical theory can be represented using arbitrary coordinates, simply by using tensor calculus. On the other hand, the physics literature often claims that spinors \emph{as such} cannot be represented in coordinates in a curved space-time. These commonplaces are inconsistent. What general covariance means for theories with fermions, such as electrons, is thus unclear. In fact both commonplaces are wrong. Though it is not widely known, Ogievetsky and Polubarinov constructed (...) spinors in coordinates in 1965, enhancing the unity of physics and helping to spawn particle physicists' concept of nonlinear group representations. Roughly and locally, these spinors resemble the orthonormal basis or "tetrad" formalism in the symmetric gauge, but they are conceptually self-sufficient and more economical. The typical tetrad formalism is de-Ockhamized, with six extra field components and six compensating gauge symmetries to cancel them out. The Ogievetsky-Polubarinov formalism, by contrast, is Ockhamized, with most of the fluff removed. As developed nonperturbatively by Bilyalov, it admits any coordinates at a point, but "time" must be listed first. Here "time" is defined in terms of an eigenvalue problem involving the metric components and the matrix $diag$, the product of which must have no negative eigenvalues in order to yield a real symmetric square root that is a function of the metric. Thus even formal general covariance requires reconsideration; the atlas of admissible coordinate charts should be sensitive to the types and \emph{values} of the fields involved. Apart from coordinate order and the usual spinorial two-valuedness, Ogievetsky-Polubarinov spinors form, with the metric, a nonlinear geometric object, for which important results on Lie and covariant differentiation are recalled. Such spinors avoid a spurious absolute object in the Anderson-Friedman analysis of substantive general covariance. They also permit the gauge-invariant localization of the infinite-component gravitational energy in General Relativity. Density-weighted spinors exploit the conformal invariance of the massless Dirac equation to show that the volume element is absent. Thus instead of an arbitrary nonsingular matrix with 16 components, 6 of which are gauged away by a new local $O$ gauge group and one of which is irrelevant due to conformal covariance, one can, and presumably should, use density-weighted Ogievetsky-Polubarinov spinors coupled to the 9-component symmetric square root of the part of the metric that fixes null cones. Thus $\frac{7}{16}$ of the orthonormal basis is eliminated as surplus structure. Greater unity between spinors and tensors and the like is achieved, such as regarding conservation laws. Regarding the conventionality of simultaneity, an unusually wide range of $\epsilon$ values is admissible, but some extreme values are inadmissible. Standard simultaneity uniquely makes the spinor transformation law linear and independent of the metric, because transformations among the standard Cartesian coordinate systems fall within the conformal group, for which the spinor transformation law is linear. The surprising mildness of the restrictions on coordinate order as applied to the Schwarzschild solution is exhibited. (shrink)

Psychiatry’s inchoate wish for a paradigm shift and the biopsychosocial model of mental illness’ critically examines the much discussed goal of a paradigm shift in psychiatric taxonomy. The chapter first highlights some illustrative calls for such a change and then sets these against the Kuhnian account of science from which the idea is taken, highlighting the connection to incommensurability. Relative to a distinction drawn from Winch, between putative sciences where the self-understanding of subjects plays no role and those where it (...) is fundamental, psychiatry falls into the latter kind. This suggests that the wish for a paradigm shift in psychiatry is either incoherent or a wish for a radical but unpredictable overhaul of a significant aspect of our self-understanding as subjects and agents. The biopsychosocial model of mental illness is thus a helpful reminder of the cost of a paradigm shift in psychiatry. (shrink)

This chapter contains sections titled: A Slightly Technical Interlude3 Bell's Theorem Again What Does Factorization Signify? Relativity and Signals Signaling Paradoxes Appendix B: Bohmian Mechanics.

This chapter contains sections titled: Galilean Transformations and Galilean Invariants A Brief Preliminary: Why Worry? Lorentz Invariance: Collapse Theories Lorentz Invariance: Hyperplane Dependence Lorentz Invariance: Non‐Collapse Theories Choose Your Poison.

It is a commonplace in the philosophy of physics that any local physical theory can be represented using arbitrary coordinates, simply by using tensor calculus. On the other hand, the physics literature often claims that spinors \emph{as such} cannot be represented in coordinates in a curved space-time. These commonplaces are inconsistent. What general covariance means for theories with fermions, such as electrons, is thus unclear. In fact both commonplaces are wrong. Though it is not widely known, Ogievetsky and Polubarinov constructed (...) spinors in coordinates in 1965, enhancing the unity of physics and helping to spawn particle physicists' concept of nonlinear group representations. Roughly and locally, these spinors resemble the orthonormal basis or "tetrad" formalism in the symmetric gauge, but they are conceptually self-sufficient and more economical. The typical tetrad formalism is de-Ockhamized, with six extra field components and six compensating gauge symmetries to cancel them out. The Ogievetsky-Polubarinov formalism, by contrast, is Ockhamized, with most of the fluff removed. As developed nonperturbatively by Bilyalov, it admits any coordinates at a point, but "time" must be listed first. Here "time" is defined in terms of an eigenvalue problem involving the metric components and the matrix $diag$, the product of which must have no negative eigenvalues in order to yield a real symmetric square root that is a function of the metric. Thus even formal general covariance requires reconsideration; the atlas of admissible coordinate charts should be sensitive to the types and \emph{values} of the fields involved. Apart from coordinate order and the usual spinorial two-valuedness, Ogievetsky-Polubarinov spinors form, with the metric, a nonlinear geometric object, for which important results on Lie and covariant differentiation are recalled. Such spinors avoid a spurious absolute object in the Anderson-Friedman analysis of substantive general covariance. They also permit the gauge-invariant localization of the infinite-component gravitational energy in General Relativity. Density-weighted spinors exploit the conformal invariance of the massless Dirac equation to show that the volume element is absent. Thus instead of an arbitrary nonsingular matrix with 16 components, 6 of which are gauged away by a new local $O$ gauge group and one of which is irrelevant due to conformal covariance, one can, and presumably should, use density-weighted Ogievetsky-Polubarinov spinors coupled to the 9-component symmetric square root of the part of the metric that fixes null cones. Thus $\frac{7}{16}$ of the orthonormal basis is eliminated as surplus structure. Greater unity between spinors and tensors and the like is achieved, such as regarding conservation laws. Regarding the conventionality of simultaneity, an unusually wide range of $\epsilon$ values is admissible, but some extreme values are inadmissible. Standard simultaneity uniquely makes the spinor transformation law linear and independent of the metric, because transformations among the standard Cartesian coordinate systems fall within the conformal group, for which the spinor transformation law is linear. The surprising mildness of the restrictions on coordinate order as applied to the Schwarzschild solution is exhibited. (shrink)

An examination of the philosophical issues surrounding prudential value: what it is for something to be good for a person; and well-being: what it is for someone's life to go well. It critically analyzes competing approaches, and proposes a new subjective account that addresses key weaknesses of existing theories.

Despite liberalism's considerable internal heterogeneity, liberal approaches to the management of ethno‐cultural relations in diverse societies are unified in one respect: they revolve around the implicit assumption that there are three distinct approaches the state can take toward this issue, namely, domination by one cultural group, a politics of recognition, and state neutrality. This articles argues that in the context of an unequal distribution of societal power among ethno‐cultural groups there are, in fact, only two basic state approaches to the (...) management of diversity: privilege and recognition. The liberal idea of state neutrality, instead of representing a third alternative, falls squarely within the privilege approach. State neutrality is a cornerstone of currently predominant strands of liberalism. However, drawing on Walzer's distinction between the two types of liberalism, the article demonstrates that a politics of recognition is not necessarily irreconcilable with liberal tenets. (shrink)

This paper studies the relationship between labelled and nested calculi for propositional intuitionistic logic, first-order intuitionistic logic with non-constant domains and first-order intuitionistic logic with constant domains. It is shown that Fitting’s nested calculi naturally arise from their corresponding labelled calculi—for each of the aforementioned logics—via the elimination of structural rules in labelled derivations. The translational correspondence between the two types of systems is leveraged to show that the nested calculi inherit proof-theoretic properties from their associated labelled calculi, such as (...) completeness, invertibility of rules and cut admissibility. Since labelled calculi are easily obtained via a logic’s semantics, the method presented in this paper can be seen as one whereby refined versions of labelled calculi (containing nested calculi as fragments) with favourable properties are derived directly from a logic’s semantics. (shrink)