Widely recognized as America's premiere photography critic, Coleman took an interest in emerging digital technologies long before his colleagues. In fact, the earliest text in this new book of essays concerning the advent of electronic media is from 1967. The intervening thirty years have found Coleman returning to topics such as digitized images, the shifting concept of intellectual property, the impact of computers on photography as a whole, and the social implications of the Internet and World Wide Web. A (...) wide-ranging selection of essays, lectures, and writings, The Digital Evolution makes for stimulating reading, and should be well received by those familiar with Coleman's previous collection of essays, Critical Focus. (shrink)

Violations of ethical conductThis article is about torture, power and the breach of ethical conduct among military doctors, nurses and medics in the “War on Terror”. Violations of ethical conduct have been widely recounted in academic and non-academic journals and reports.1 This paper is also a call to international boards of doctors and nurses to intervene directly to stop abuses undertaken by US military healthcare providers under the guise of the War on Terror. With evidence growing that US military and (...) security services are actively engaged in the ill treatment, torture and deaths of suspects, details about the participation of healthcare professionals in such unlawful and unethical activities remain for the most part timidly accounted for. But according to current literature on this topic, there is increasing evidence that US doctors, nurses and medics have been complicit in torture and other unethical activities in Afghanistan, Iraq and Guantanamo Bay .2–4The US government has inadequately dealt with these facts. Senior officials in the Bush administration who have played a major part in conducting the War on Terror have been either promoted or asked to remain in their posts. More seriously, despite worldwide condemnation of the reality behind the photos, allegations of torture continue at Guantanamo Bay, Cuba.5 The graphic and appalling nature of several photographs are by no means the only evidence of abuses conducted by the US on its own territory and abroad. But the complicity of healthcare professionals in many venues , such as in capital punishment procedures in the US, exacerbates the already disturbing extent of bio-political abuses by the US government.Doctors and nurses often top the polls as caring and trustworthy professionals.6 Indeed, so strong …. (shrink)

In analysing Lester Beall's posters for the U.S. government between 1937-1941, Michael Golec demonstrates the twofold character of facts in art and design appearing even when they are applied to guarantee distinct messages. Commissioned by the governmental agencies to develop a series of posters to increase the electrification of rural farms, Beall introduces pictograms in his first series to represent electrification as “facts of the future.” Its simple forms facilitate the travelling of this facts without loss of their integrity. The (...) same holds true for the use of photographic images for the second campaign of 1939. Following the revaluation of photography as a means for the documentation of social reality, as represented by the FSA photographers under the guidance of Roy Stryker, the medium served here as the authentication of facts. Golec holds, that Beall by reducing the complexity of the photographic images, to create a pictorial integrity of his posters, even despite of the use of a seemingly documentary medium, reinforces the ambivalent factual character of the pictures. So, paradoxically by heightening the communicative character of the design and hence stressing the idea of facts as integral realities outside of artworks, Beall's posters reveal the ambiguous character of pictorial facts creating their own specific qualities. Golec concludes, that facts in works of art and design have a twofold character resulting from their belonging to different spaces, which although meant to accomplish and address different facts, inevitably travel, overlap and bleed into each other. Thus oddly these facts refer or represent reality and simultaneously are a thing made (factum) that present and hold their own pictorial reality. (shrink)

In A Photographer’s Guide to Ohio Ian Adams, Ohio’s leading landscape photographer, guides readers to some of the most photogenic sites in the Buckeye State. Natural beauty and historic architecture are prime subjects for photographers, and in a state that boasts 3,600 buildings on the National Register of Historic Places and is home to the world’s largest Amish communities, the photographic subjects seem endless. With nearly one hundred color photographs, Adams demonstrates through his own work how to capture the beauty (...) of the seasons when photographing Ohio’s covered bridges, numerous public gardens, state parks, and nature preserves. Each entry includes clear directions, related websites, and historical facts about the area, as well as Adams’s suggestions for capturing the best image. Both amateur and experienced photographers will find expert guidance in Adams’s clear instructions on digital photography and will be inspired to create their own stunning close-ups and scenic panoramas. (shrink)

The idea that looking at a photograph is akin to face-to-face perception and that photographs provide genuine perceptual access to the objects they depict was notoriously defended by Kendall Walton in “Transparent Pictures.” Walton’s main thesis is that photographs are transparent in the sense that we can see objects through them. The main goal of this article is to support Walton’s view by providing a full account of photographic transparency. I will argue that the transparency that characterizes photography is not (...) metaphorical but in fact exhibits all the essential properties of transparent materials. To understand how a photograph can be transparent, one must understand the special type of causal connection between a photograph and what it shows. Building on Fritz Heider’s work, I will argue that photography is a visual medium, like air, water, glass, or mirrors, capable of transmitting the visual properties of distant objects to the perceiver. (shrink)

Abstract:While the rise of a ‘dictatorship of relativism’ was a longstanding concern for Joseph Ratzinger/Pope Benedict XVI, some commentators have suggested that—for better or for worse—the challenge posed by relativism appears to be less of a priority for Pope Francis. Indeed, Francis's remark, ‘Who am I to judge?’ appears to have become as much the defining soundbite for his papacy as the ‘dictatorship of relativism’ was for Benedict's. Contrary to these perceptions, this article argues that a critique of relativism is (...) in fact a central aspect of Pope Francis's magisterium. Francis exhibits continuity with Benedict by amplifying his concerns about the danger of attempting to reconstruct reality according to human desire, but Francis also develops his predecessor's teaching by introducing the category of ‘practical relativism’. With this development, relativism cannot be dismissed as a theoretical problem that only plagues those who refuse to assent to the truth intellectually. The willingness to set aside the truth to which one assents when it proves inconvenient represents a more pernicious—precisely because more subtle—form of relativism that Francis argues must be rooted out, not by argument, but through self‐examination and the practice of solidarity. (shrink)

This book argues that Josiah Royce bequeathed to philosophy a novel idealism based on an ethico-religious insight.This insight became the basis for an idealistic personalism, wherein the Real is the personal and a metaphysics of community is the most appropriate approach to metaphysics for personal beings, especially in an often impersonal and technological intellectual climate. -/- The first part of the book traces how Royce constructed his idealistic personalism in response to criticisms made by George Holmes Howison. That personalism is (...) interpreted as an ethical and panentheistic one, somewhat akin to Charles Hartshorne's process philosophy. The second part investigates Royce's idealistic metaphysics in general and his ethico-religious insight in particular. In the course of these investigations, the author examines how Royce's ethico-religious insight could be strengthened by incorporating the philosophical theology of Dr. Reverend Martin Luther King, Jr., and Emmanuel Levinas's ethical metaphysics. The author concludes by briefly exploring the possibility that Royce's progressive racial anti-essentialism is, in fact, a form of cultural, antiblack racism and asks whether his cultural, antiblack racism taints his ethico-religious insight. (shrink)

Because Arthur ‘Weegee’ Fellig’s crime scene photographs have become the standard for visually representing crime scenes in popular culture, this paper examines the extra-legal lives of two of his images, both of which were produced at the site of a gangster’s death in 1936. To decode the crime scene photograph is to interrogate the ways in which we make sense of crime through seeing and narrating. To that end, this paper charts how these two crime images were contextualized first in (...) a tabloid narrative that invited viewer identification with the law enforcer, and later in Weegee’s own autobiographical narrative as a hardboiled photographer. In contrast to these human ways of seeing and narrating, the images are then examined through computer vision. By moving across these different ways of human and nonhuman seeing, we are arrested anew by the crime scene photograph as different narrators make clear, often for different audiences, who and what it is that we are looking at. Our visual point of focus, in turn, tells us how we engage with crime images at the mediated intersection of law and popular culture; it reveals how viewers identify with the law as a result of an image’s visual structure, as well as through representational exchanges that blur the edges between fact and fiction. (shrink)

This article sets out to substantiate an understanding of the photographic image as a constellation of scaled relations, with a focus on the significance of historically neglected questions of scale in and for the present. It explores two recurrent themes in Walter Benjamin’s writings: his celebrated methodological-epistemological concept of constellation and his less often remarked fascination for relationships of scale, processes of scaling and the scale effects these produce. These are investigated in light of the mutable and composite character of (...) the contemporary photographic image and its unprecedented scale as a mass form. Key phenomena and prevalent conceptions of photography are approached as already structured by intercalated facts, operations and experiences of scale, scaling and scalability. On this basis, a constellation of three historical essays that examine questions of scale in photography is constructed. The guiding aim of this construction is that such a constellation might stand as a pre-history of scale and its significance in and for photography today. (shrink)

In the paper, a detailed analysis of some new logical aspects of Cantor’s diagonal proof of the uncountability of continuum is presented. For the first time, strict formal, axiomatic, and algorithmic definitions of the notions of potential and actual infinities are presented. It is shown that the actualization of infinite sets and sequences used in Cantor’s proof is a necessary, but hidden, condition of the proof. The explication of the necessary condition and its factual usage within the framework of Cantor’s (...) proof makes, Cantor’s proof invalid. It’s shown that traditional Cantor’s proof has a second necessary, but hidden as well, condition which is teleological by its nature, i.e., is not mathematical. The explication of the second necessary condition makes Cantor’s statement on the uncountability of continuum unprovable from the point of view of classical logic.One of the most dramatic facts in history of science is connected just with the notion of actual infinity and consists in the following. On the one hand, Aristotle, Berkeley, Locke, Descartes, Spinoza, Gauss, Kant, Cauchy, Kronecker, Hermite, Poincaré, Bair, Borel, Brouwer, Quine, Wittgenstein, Weyl, Luzin, and a lot of other outstanding creators of classical logic and classical mathematics, during millenniums, stated categorically and insistently warned about that the actual infinity is a self-contradictory notion and its usage in mathematics is inadmissible (e.g., according to Poincare, “There is no actual infinity. - Cantorians forgot that and fell into contradictions. Later generations will regard Mengenlehre (set theory) as a disease from which one has recovered”). On the other hand, a lot of outstanding scientists of the XX c.c., such as Hilbert, Church, Turing, Gödel, etc., and modern axiomatic set theory as a whole ignored this (intuitive though) opinion of genii and accepted Cantor’s “transfinite paradise”, based on the actual infinity. In the paper some logical, philosophical, and psychological aspects of this historical “favorable opposition” are analyzed, and the fact that the scientific intuition of genii has won the historical battle against the mytho-’logic’ of Cantor’s transfinite ‘paradise’ is explained and logically justified. (shrink)

"The availability of a paperback version of Boyle's philosophical writings selected by M. A. Stewart will be a real service to teachers, students, and scholars with seventeenth-century interests. The editor has shown excellent judgment in bringing together many of the most important works and printing them, for the most part, in unabridged form. The texts have been edited responsibly with emphasis on readability.... Of special interest in connection with Locke and with the reception of Descarte's Corpuscularianism, to students of the (...) Scientific Revolution and of the history of mechanical philosophy, and to those interested in the relations among science, philosophy, and religion. In fact, given the imperfections in and unavailability of the eighteenth-century editions of Boyle’s works, this collection will benefit a wide variety of seventeenth-century scholars." --Gary Hatfield, University of Pennsylvania. (shrink)

The Problem of Doxastic Shift may be stated as a dilemma: on the one hand, the distribution of nominal complements of the form `the ψ that p’ strongly suggests that `that’-clauses cannot be univocally assigned propositionaldenotations; on the other hand, facts about quantification strongly suggest that `that’-clauses must be assigned univocal denotations. I argue that the Problem may be solved by defining the extension of a proposition to be a set of facts or, more generally, conditions. Given this, the logical (...) operation of descriptive predication can be introduced in a way that resolves the dilemma withoutsacrificing the singular term analysis of `that’-clauses. (shrink)

Logical monism is the claim that there is a single correct logic, the 'one true logic' of our title. The view has evident appeal, as it reflects assumptions made in ordinary reasoning as well as in mathematics, the sciences, and the law. In all these spheres, we tend to believe that there aredeterminate facts about the validity of arguments. Despite its evident appeal, however, logical monism must meet two challenges. The first is the challenge from logical pluralism, according to which (...) there is more than one correct logic. The second challenge is to determine which form of logicalmonism is the correct one. One True Logic is the first monograph to explicitly articulate a version of logical monism and defend it against the first challenge. It provides a critical overview of the monism vs pluralism debate and argues for the former. It also responds to the second challenge by defending a particularmonism, based on a highly infinitary logic. It breaks new ground on a number of fronts and unifies disparate discussions in the philosophical and logical literature. In particular, it generalises the Tarski-Sher criterion of logicality, provides a novel defence of this generalisation, offers a clearnew argument for the logicality of infinitary logic and replies to recent pluralist arguments. (shrink)

G. A. Cohen has recently argued for a thesis about the relationship between facts and principles. He claims that Rawls denies this thesis, and the truth of this thesis vitiates Rawls’s constructivist procedure. I argue against both claims by developing an account of Rawls’s justificatory strategy and the role of facts in this strategy, which I claim is similar to the role of facts in some defences of utilitarianism.

We can best begin from Wilson's "simple little puzzle" about Caesar and Antony: "What would the world be like if Julius Caesar had all the properties of Mark Antony and Mark Antony had all the properties of Julius Caesar?" Wilson's own approach to an answer is indirect--he begins by telling us not what such a world would be like but what it would look like. "Clearly the world would look exactly the same under our supposition." But this assumes that the (...) question "What would such a world look like?" is a proper one; which it surely is not. For his answer to it is meaningless until he specifies to whom this supposed world would look as he says it would. It would look exactly the same to him or to me; but would it have looked the same to Caesar or to Antony? In fact Julius Caesar had the experiences of being called "Julius Caesar," being murdered on the Ides of March, and so on, and these are very different experiences from being called "Mark Antony," dallying on the Nile with Cleopatra, and so on; so I don't see how this alternative course of events could possibly have looked the same to Julius Caesar; or--using a similar line of argument--to Mark Antony. So I cannot agree that, as Wilson goes on to say, "our attempt to describe a distinct possible world has produced just the same old world all over again." I am not, indeed, convinced that even a world which looked to everyone just as the actual one does would necessarily be the same world ; but even putting this doubt aside, since the world mentioned wouldn't look to everyone as the actual world does, it wouldn't be the same even by Wilson's own standards. (shrink)

In this paper I examine a strategy which aims to bypass the technicalities of the indispensability debate and to offer a direct route to nominalism. The starting-point for this alternative nominalist strategy is the claim that--according to the platonist picture--the existence of mathematical objects makes no difference to the concrete, physical world. My principal goal is to show that the 'Makes No Difference' (MND) Argument does not succeed in undermining platonism. The basic reason why not is that the makes-no-difference claim (...) which the argument is based on is problematic. Arguments both for and against this claim can be found in the literature; I examine three such arguments, uncovering flaws in each one. In the second half of the paper, I take a more direct approach and present an analysis of the counterfactual which underpins the makes-no-difference claim. What this analysis reveals is that indispensability considerations are in fact crucial to the proper evaluation of the MND Argument, contrary to the claims of its supporters. (shrink)

Sufficient texts show that for aristotle the universal notion expresses the same real thing as the particular, Though in a different way. His grounds for a universal so conceived are twofold. First, In every sensible thing there is a basic formal principle that, Though individual, Brings each instance into formal identity with all the other instances. Secondly, In human intellectual cognition there is an active principle that raises knowledge above the status of photographing or registering or cataloguing, And actualizes (...) what was only potential in the real thing. In knowing sensible things universally, The human intellect is able to grasp the concrete thing as characterized by a formal nature, Thereby knowing it in a way that holds equally for all other instances. Though patently incomplete, This conception of the universal is free from internal contradictions. It provides a framework for fruitful discussion, And remains a challenge. (shrink)

Open theists argue that God's relationship to time, as conceived in classical theism, is erroneous. They explain that it is contradictory for an atemporal being to act in a temporal universe, including experiencing its temporal successions. Contrary to the atemporalists, redemptive history has shown that God interacts with humans in time. This relational nature of God nullifies the classical notion of God as timelessly eternal. Therefore, it lacks a philosophical and theological basis. Because God is in time, He does not (...) know all future contingencies and, therefore, changes. This study examines open theism's appropriation of the A and B theories of time to the divine-human relationship. The study argues that divine temporality does not solve the tension of divine-human relationships, especially in relation to the future. Further, historical divine temporality does not negate the fact of divine atemporality. It mainly stems from God's choice to create temporal creatures and His relationship with them. Furthermore, if it is not logically and metaphysically contradictory for an omnipresent being to act in space, then it follows that an atemporal being can act in time. Whether time is understood from the metric or psychological point of view, it does not transcend God, and therefore, the limitation it places on human creatures with respect to the future does not apply to God. Lastly, although a few philosophers reject the notion of eternity as timelessly eternal, the doctrine has a philosophical and theological basis in the Scripture. (shrink)

This article focuses on the question of how we perceive and represent ourselves at the most minimal, pre-reflective level. We first review recent work emphasizing the multisensory basis of our perceptual experiences and the embodied nature of self-awareness. We then focus on interoceptive and tactile signals, as key components of bodily self-consciousness, and discuss one crucial yet overlooked aspect of our embodiment, namely the fact that bodily self-consciousness emerges from the outset within the body of another experiencing subject. Next, (...) we review empirical findings highlighting the developmental primacy of tactile and interoceptive over visual experiences, in shaping the foundations of perceptual awareness. Building upon the influential predictive processing framework in philosophy and theoretical neuroscience, we argue that self-awareness is not only embodied, but also that perceptual experiences are fundamentally 'selfish', that is, imperatively driven by basic constraints of physiological regulation that subserve self-preservation. We then evaluate. (shrink)

A number of authors have argued that the fact that certain indexicals depend for their reference-determination on the speaker’s referential intentions demonstrates the inadequacy of associating such expressions with functions from contexts to referents (characters). By distinguishing between different uses to which the notion of context is put in these argument, I show that this line of argument fails. In the course of doing so, I develop a way of incorporating the role played by intentions into a character-based semantics (...) for indexicals and I argue that the framework I prefer is superior to an alternative which has been proposed by others. (shrink)

Reichenbachian approaches to indexicality contend that indexicals are "token-reflexives": semantic rules associated with any given indexical-type determine the truth-conditional import of properly produced tokens of that type relative to certain relational properties of those tokens. Such a view may be understood as sharing the main tenets of Kaplan's well-known theory regarding content, or truth-conditions, but differs from it regarding the nature of the linguistic meaning of indexicals and also regarding the bearers of truth-conditional import and truth-conditions. Kaplan has criticized these (...) approaches on different counts, the most damaging of which is that they make impossible a "logic of demonstratives". The reason for this is that the token-reflexive approach entails that not two tokens of the same sentential type including indexicals are guaranteed to have the same truth-conditions. In this paper I rebut this and other criticisms of the Reichenbachian approach. Additionally, I point out that Kaplan's original theory of "true demonstratives" is empirically inadequate, and claim that any modification capable of accurately handling the linguistic data would have similar problems to those attributed to the Reichenbachian approach. This is intended to show that the difficulties, no matter how real, are not caused by idiosincracies of the "token-reflexive" view, but by deep facts about indexicality. (shrink)

I think--though this is not completely clear--that it would be accurate in the situation which I have envisaged, for me to say to you 'Once you were me,' and for you to say this to me. For suppose we represent our joint life-history in the obvious way by a big Y. The left arm is not the right arm, and neither arm is the pedestal; but the word 'me' does not denote the present part of my life-history, represented by the (...) left arm, nor any other part of my life-history, but rather denotes the person whose life history is represented by the pedestal plus the left arm, and the word 'you' similarly denotes the person whose life history is represented by the pedestal plus the right arm. These two persons were ex hypothesi one and the same person before the fission, and given that pronouns have the reference just indicated, 'Once you were me' seems a correct way of describing this fact. 'Once I was you' would of course do as well; for it doesn't mean 'Once I was you and there was no me,' which of course I cannot admit, but just 'Once I was you,' and that is fair enough. My memory of the sardine feast can then be expressed by 'I remember eating those sardines when I was you'. (shrink)

Upshot: Since all my commentators express some reservation about the distinction between the cognitive and non-cognitive aspects of knowledge in general, and its applicability and relevance in the domain of religious belief in particular, I will address the question of why this distinction is important and whether these two modes of knowledge can be communicated. Further questions I try to address include: Can a radical constructivist be an atheist, or alternatively a religious believer? What exactly would these designations mean? Is (...) it at all possible to discuss meaningfully the question of whether God exists? Can two or more people ascertain whether they in fact share their concept of a God? (shrink)

This paper explores the difference between Connectionist proposals for cognitive a r c h i t e c t u r e a n d t h e s o r t s o f m o d e l s t hat have traditionally been assum e d i n c o g n i t i v e s c i e n c e . W e c l a i m t h a t t h (...) e m a j o r d i s t i n c t i o n i s t h a t , w h i l e b o t h Connectionist and Classical architectures postulate representational mental states, the latter but not the former are committed to a symbol-level of representation, or to a ‘language of thought’: i.e., to representational states that have combinatorial syntactic and semantic structure. Several arguments for combinatorial structure in mental representations are then reviewed. These include arguments based on the ‘systematicity’ of mental representation: i.e., on the fact that cognitive capacities always exhibit certain symmetries, so that the ability to entertain a given thought implies the ability to entertain thoughts with semantically related contents. We claim that such arguments make a powerful case that mind/brain architecture is not Connectionist at the cognitive level. We then consider the possibility that Connectionism may provide an account of the neural (or ‘abstract neurological’) structures in which Classical cognitive architecture is implemented. We survey a n u m b e r o f t h e s t a n d a r d a r g u m e n t s t h a t h a v e b e e n o f f e r e d i n f a v o r o f Connectionism, and conclude that they are coherent only on this interpretation. (shrink)

This article proceeds to describe in detail the expression forms (“Formes de l’expression”) particular to two photographs by Henri Cartier-Bresson. The investigation of the specificities of the plastic dimension of these photographs leads us to discover some of the formal features liable to raise photographic language to the level of artistic composition. We thereby demonstrate how Photography may take on astonishingly deep and complex sensations and significations.

Adults reason by exclusivity to identify the meanings of novel words. However, it is debated whether, like children, they extend this strategy to disambiguate other referential expressions. To further inform this debate, this study tested 41 adults on four conditions of a disambiguation task: label/label, fact/fact, label/fact, and fact/label. Participants also provided a verbal explanation for their referent selections to tease apart the underlying processes. Results indicated that adults successfully discerned the target object in the label/label (...) and label/fact condition, yet not the remaining two conditions. Verbal reports indicated that the strategy utilized to disambiguate differed depending upon communicative context. These findings confirm that the tendency to reason by exclusivity becomes restricted to word-learning situations with growing linguistic and communicative experience. (shrink)

John Cottingham identifies “the grand traditional project of synoptic ethics” as an attempt to define the essential features of a good human life within a rational understanding of the world, and of man’s place within it. That the project now seems dated he explains in two ways. First, he notes the recent specialization and professionalization of philosophy, its preference of technical topics to grand questions. Second, he adduces a skepticism that doubts the objectivity, and a liberalism that accepts a plurality, (...) of values. The upshot of both trends is a “committee ethics” that takes on “the task of articulating the structure of an optimal political system in which maximum scope is given for the pursuit of whatever values are in fact chosen by the citizens” —a grandish issue, surely, but neither a personal nor a metaphysical one. Cottingham’s main aim is to cast further doubt on the practicability of the traditional project so long as it is pursued in the traditional “ratiocentric” style. What that is he conveys through discussions of Plato, Aristotle, and Descartes. (shrink)

Photography in Colorado was encouraged as early as 1861, when newspaper editor William Byers wrote in the Rocky Mountain News, "Secure the shadow, ere the substance perish," and roused the citizenry to take photographs of their families, friends, landscape, homes, and mills in order to document their lives and share them with others. The revised edition of Colorado: A History in Photographs draws on this rich legacy, portraying Colorado's history in images taken from the frontier era to the present, all (...) accompanied by a vivid, updated narrative. Presenting a broad view of countless aspects of life in Colorado and including 270 black-and-white photographs, this book will inform, entertain, and inspire all those who delight in learning more about the history of the Centennial State. (shrink)

Functional words are of substantial interest in moral philosophy because they appear to lie at the juncture of description and evaluation. This is no doubt the reason that they have played a significant part in much recent discussion of the relation between facts and values. Yet, in spite of the many discussions in which functional words have made an appearance, their significance for an understanding of the relation between facts and values remains unclear. A thorough-going examination of the nature of (...) functional words would appear to be in order. And while such a study is beyond the scope of a single article it should nevertheless be possible to make a beginning. That, at any rate, is my objective in what follows. (shrink)

Relativistic quantum mechanics has been formulated as a theory of the evolution ofevents in spacetime; the wave functions are square-integrable functions on the four-dimensional spacetime, parametrized by a universal invariant world time τ. The representation of states with spin is induced with a little group that is the subgroup of O(3, 1) leaving invariant a timelike vector nμ; a positive definite invariant scalar product, for which matrix elements of tensor operators are covariant, emerges from this construction. In a previous study (...) a second-order equation was introduced similar to the second-order Dirac equation, based on a quadratic function of two operators which are the self-adjoint parts, in this new scalar product, of γμpμ. It is shown in this paper that one of these operators, in fact the one from which the gyromagnetic moment is obtained, can be used to construct a first-order equation. The corresponding quantum theory is somewhat analogous to Dirac's spinor form; the Hamilton equations appear to describe dynamical degrees of freedom in a spacelike hyperplane orthogonal to nμ (in Dirac's theory the motion appears to be lightlike). It is shown that the integration over nμ required by unitarity results in timelike motion (as in the expectation value of Dirac's α). Explicit forms are obtained for the wave functions and currents for free motion. The general form of the theory is written for the (five-dimensional) pre-Maxwell fields required by gauge invariance. (shrink)

We attempt to discern what Badioursquo;s philosophical system provides for thinking of education in a form which separates it from its contemporary representation in the state. These notes oppose to this state form Badiou#39;s declaration that #39;the only education is an education by truthsrsquo;. We pursue this in three sections. First, we will address the significance and function of the term lsquo;conditionsrsquo;. Secondly we will address Badioursquo;s essay lsquo;Art and Philosophyrsquo; from Handbook of Inaesthetics, the only essay in fact (...) where Badiou addresses education in a specific manner and in which Badiou discusses the link between art and philosophy in terms of the lsquo;pedagogical themersquo;: A theme, he says, that has been brought to collapse. Thirdly we will attempt to discern what might make up whatnbsp; Badiou refers to as the lsquo;fourth modalityrsquo; of the link between philosophy and its conditions through a somewhat speculative discussion of the dual lsquo;militantrsquo; praxis known in Badioursquo;s work as lsquo;subtractionrsquo; and lsquo;forcingrsquo;. (shrink)

1. The “puzzle” Physical objects are coloured: roses are red, violets are blue, and so forth. In particular, physical objects have fine-grained shades of colour: a certain chip, we can suppose, is true blue (unique, or pure blue). The following sort of scenario is commonplace. The chip looks true blue to John; in the same (ordinary) viewing conditions it looks (slightly) greenish-blue to Jane. Both John and Jane are “normal” perceivers. Now, nothing can be both true blue and greenish-blue; since (...) the chip is true blue, it is not greenish-blue. Hence Jane, unlike John, is misperceiving the chip. Generalizing, the conclusion is that there is widespread misperception of fine-grained shades. According to Tye (2006), and Cohen, Hardin, and McLaughlin (2006), the previous paragraph amounts to a paradox: an apparently unacceptable conclusion has been drawn from apparently acceptable premises via apparently acceptable reasoning. (See also Hawthorne and Kovakovich 2006, 180-1.) Tye swallows the conclusion, aided by a dose of evolutionary speculation. Hardin (1988), on the other hand, rejects the first premise, and denies that physical objects are coloured. Cohen (2004) and McLaughlin (2003) claim that both Jane and John have the colour of the chip right. Our opening paragraph concealed a crucial parameter. In fact, the chip looks greenish-blue-relative-to- circumstances-C to Jane, and true-blue-relative-to-circumstances-C* to John, and the chip has both these relativized colours.1 All this ingenious philosophizing would be in vain, of course, if the conclusion of the opening paragraph were not puzzling or problematic. So, why is it supposed to be? According to Tye, the conclusion is puzzling because John and Jane are both “normal perceivers” (xx). He seems to think that it is (prima facie) plausible to assume.. (shrink)