A generalized Kochen-Specker theorem is proved. It is shown that there exist sets of n projection operators, representing n yes-no questions about a quantum system, such that none of the 2″ possible answers is compatible with sum rules imposed by quantum mechanics. Namely, if a subset of commuting projection operators sums up to a matrix having only even or only odd eigenvalues, the number of “yes” answers ought to he even or odd, respectively. This requirement may lead to contradictions. An (...) example is provided, involving nine projection operators in a 4-dimensional space. (shrink)

We study completely decomposable torsion-free abelian groups of the form $\mathcal{G}_S := \oplus_{n \in S} \mathbb{Q}_{p_n}$ for sets $S \subseteq \omega$. We show that $\mathcal{G}_S$has a decidable copy if and only if S is $\Sigma^0_2$and has a computable copy if and only if S is $\Sigma^0_3$.

One of the endearing traits of Asher Peres is that when somebody publishes something he knows to be wrong, he does not bother to refute it, even if the paper criticizes his own work. Life is too brief for such frivolity. As a small 70th birthday present I would like to answer one such recent attack. It’s not much of a present, since Asher will not read my paper. Why should he? He already knows this criticism is nonsense. (...) But somebody has to set the written record straight for future historians, so I will do it as part of this celebration. Fortunately this particular issue is so easily settled that this can be a very short paper. Since Asher is a master of the very short paper, my Peresian brevity is an important part of my act of homage. The criticism I address can be found in a new formulation by Karl Hess and Walter Philipp(1) of their view that all versions of Bell’s theorem are fundamentally flawed. I focus here only on their criticism of the version in Asher’s book.(2). (shrink)

In accordance with an old suggestion of Asher Peres (1962), we consider the electromagnetic field as fundamental and the metric as a subsidiary field. In following up this thought, we formulate Maxwell’s theory in a diffeomorphism invariant and metric-independent way. The electromagnetic field is then given in terms of the excitation $H = ({\cal H}, {\cal D})$ and the field strength F = (E,B). Additionally, a local and linear “spacetime relation” is assumed between H and F, namely H ~ (...) κ F, with the constitutive tensor κ. The propagation is studied of electromagnetic wave fronts (surfaces of discontinuity) with a method of Hadamard. We find a generalized Fresnel equation that is quartic in the wave covector of the wave front. We discuss under which conditions the waves propagate along the light cone. Thereby we derive the metric of spacetime, up to a conformal factor, by purely electromagnetic methods. (shrink)

RésuméJohn Searlea récemment soutenu que le cerveau ne peut pas être un ordinateur (non connexionniste). Son argument est que les vrais systèmes physiques comme les cerveaux fonctionnent à la causalité, tandis que les opérations computationnelles ne sont pas causales, mais sont plutôt des séquences formelles qui requièrent un interprète extérieur pour lew existence en tant que systèmes formels. Les vrais systèmes physiques, par contre, ne requièrent aucune interprétation pour lew existence comme systèmes physiques opérationnels.Contrairement à Searle, je soutiens qu'iln'y a (...) pas de démarcation nette entre notre application des formalismes mathématiques standard à des phénomènes physiques comme les oscillations, et notre application des formalismes computationnels aux divers phénomènes physiques qui sont, effectivement ou potentiellement, bien décrits et expliqués pas ces formalismes. (shrink)

This study is primarily a call to philosophers to attend the concerns raised by the increasing possibility of indefinitely extended human life. While these concerns are largely moral and socio-political, questions arising from this possibility are seen to involve other philosophical areas, including epistemology.Starting with the age-old desire for extended, enjoyable life, possible strategies for realizing such life are considered. Such realization is shown to conflict with the desire for children. Various reasons for choice between the alternatives of indefinitely extended (...) life and what is currently understood to be a normal life, including the possibility of offspring, are examined. Competing social visions are sketched for the purpose of resolving this dilemma. It is argued that humanity’s likely choice from among the competing social sketches favors the decision for extended life against that for limited lifespan with the possibility of children. Assuming that the extended life will be a life of learning leads to epistemological considerations regarding what is to be learned. (shrink)

Martin Buber’s political thought has enjoyed renewed attention lately, particularly his concept of “theopolitics,” a type of political practice that recognizes God as the ultimate political authority. In Buber’s biblical exegesis, theopolitics is a condition of everyday life in premonarchical Israel, but following the installation of the monarchy, it becomes a specialized activity of prophets, consisting chiefly in divinely commanded intercession against state actions. Buber suggests that a version of this prophetic activity is manifest in present-day socialist cooperatives, especially the (...) kibbutzim. Indeed, for Buber, these cooperatives can be seen as laying the groundwork for messianic redemption. This essay probes some potentially troubling implications of Buber’s theopolitical framework, taking objections raised in Walter Benjamin’s correspondence as an entry point. A central concern for Benjamin is Buber’s nationalist articulation of Jewish identity, which appears all the more problematic when considered in tandem with the teleological view of history evident in Buber’s framework. (shrink)

The study of the feeling of knowing may have implications for some of the metatheoretical issues concerning consciousness and control. Assuming a distinction between information-based and experience-based metacognitive judgments, it is argued that the sheer phenomenological experience of knowing (''noetic feeling'') occupies a unique role in mediating between implicit-automatic processes, on the one hand, and explicit-controlled processes, on the other. Rather than reflecting direct access to memory traces, noetic feelings are based on inferential heuristics that operate implicitly and unintentionally. Once (...) such heuristics give rise to a conscious feeling that feeling can then affect controlled action. Examination of the cues that affect noetic feelings suggest that not only do these feelings inform controlled action, but they are also informed by feedback from the outcome of that action. (shrink)

Dieses Buch untersucht Humes revolutionäre Theorie des begrifflichen Denkens.Das begriffliche Denken ist eine wichtige Tätigkeit des Geistes. Was genau geschieht im Geist, wenn wir diese Tätigkeit ausüben? Im Vergleich zu anderen Philosophen der Frühen Neuzeit hat Hume bei der Beantwortung dieser Frage eine grössere Schwierigkeit: Humesche Ideen sind (anders als bei Descartes und Locke) rein phänomenaler Natur. Sie sind geistige "Bildchen" ohne begriffliche Struktur. Wie soll das begriffliche Denken mit Hilfe derartiger Ideen möglich sein? Hume reagierte auf diese Herausforderung mit (...) einem völlig neuartigen Ansatz und wurde zum Bahnbrecher einer moderneren Theorie des Denkens. Eine klare Einsicht in diesen Teil der Humeschen Philosophie ist zudem unentbehrlich für ein adäquates Verständnis seines Agnostizismus bezüglich der kausalen Kraft und seiner Metaphysik der Existenz. (shrink)

Animal welfare science and ecology are both generally concerned with the lives of animals, however they differ in their objectives and scope; the former studies the welfare of animals considered ‘domestic’ and under the domain of humans, while the latter studies wild animals with respect to ecological processes. Each of these approaches addresses certain aspects of the lives of animals living in the world though neither, we argue, tells us important information about the welfare of wild animals. This paper argues (...) for the development of a new scientific discipline ‘welfare biology’ to address these issues and more, given the deficiencies of pre-existing life science disciplines to research the subject. Welfare biology is the study of the welfare of all living beings who have a welfare, with a value orientation toward promoting that welfare, regardless of the beings’ situation or relationship to humans and our activities. (shrink)

Philosophy Lab: An Experiential Approach to Conceptual Analysis gives students the skills and strategies needed to do philosophical work in the Analytic tradition. They are presented with a step-by-step method for performing a preliminary conceptual analysis and practice examples to apply the method to standard philosophical problems. Students are introduced to the work of great thinkers including Descartes, Hobbes, Locke, Wittgenstein, and Ryle. These works are complemented by contemporary empirical findings concerning perception, desire, emotion, moral intuition, and other basic elements (...) of explicit intentional cognition. Each chapter features primary source material, commentary, and activity instructions. The activities are designed to allow students to experience each mode of cognition in relative isolation, and then to see how they combine and interrelate in more complex contexts. Finally, students use the template model of conceptual analysis to explore the material. They identify and isolate the concept to be analyzed, determine whether it is simple or complex, and if complex, identify the constituent parts of the concept. Specific topics covered include causal power, sex and marriage, compassion, ambition, justice, and death. Through presentation and modeling the book not only enables student to do conceptual analysis with precision, it helps them understand and interpret philosophical issues. Philosophy Lab is a comprehensive, carefully designed text for first courses in philosophy. It may be used with first-year undergraduate students, advanced high-school students, or adult learners. Asher Walden holds a Ph.D. in philosophy and religion from Drew University. Dr. Walden is currently an adjunct lecturer at the University of Massachusetts, Dartmouth. (shrink)

This article is intended to emphasize several ethical issues relating to the activities of the internal auditor. The points of view expressed relate mainly to the public sector of Israel. Beyond the discussion of the specific issues against its unique Israeli background (Internal Audit Law), the discussion throws light on general problems that have not yet been solved.

This paper draws upon Hannah Arendt's idea of the 'right to have rights' to critique the current protection gap faced by refugees today. While refugees are protected from refoulement once they make it to the jurisdiction or territory of a state, they face an ever-increasing array of non-entrée policies designed to stymie access to state territory. Without being able to enter a state capable of securing their claims to safety and dignity, refugees cannot achieve the rights which ought to be (...) afforded to them under international law. Drawing upon both legal theory and political philosophy, this paper argues that refugees today, just as the stateless in Arendt’s time, must be afforded the ‘right to have rights’, understood as a right to enter state territory. (shrink)

The relationship between metacognition and mindreading was investigated by comparing the monitoring of one’s own learning and another person’s learning . Previous studies indicated that in self-paced study judgments of learning for oneself are inversely related to the amount of study time invested in each item. This suggested reliance on the memorizing-effort heuristic that shorter ST is diagnostic of better recall. In this study although an inverse ST–JOL relationship was observed for Self, it was found for Other only when the (...) Other condition followed the Self condition. The results were interpreted in terms of the proposal that the processes underlying experience-based metacognitive judgments are largely unconscious. However, participants can derive insight from observing themselves as they monitor their own learning, and transfer that insight to Other, thus exhibiting a shift from experience-based to theory-based judgments. Although different processes mediate metacognition and mindreading, metacognition can inform mindreading. (shrink)

CRISPR-Cas9 genome editing can and has altered human genomes, bringing bioethical debates about this capability to the forefront of philosophical and policy considerations. Here, I consider the underexplored implications of CRISPR-Cas9 gene drives for heritable human genome editing. Modification gene drives applied to heritable human genome editing would introduce a novel form of involuntary eugenic practice that I term guerrilla eugenics. Once introduced into a genome, stealth genetic editing by a gene drive genetic element would occur each subsequent generation irrespective (...) of whether reproductive partners consent to it and irrespective of whether the genetic change confers any benefit. By overriding the ability to ‘opt in’ to genome editing, gene drives compromise the autonomy of carrier individuals and their reproductive partners to choose to use or avoid genome editing and impose additional burdens on those who hope to ‘opt out’ of further genome editing. High incidence of an initially rare gene drive in small human communities could occur within 200 years, with evolutionary fixation globally in a timeframe that is thousands of times sooner than achievable by non-drive germline editing. Following any introduction of heritable gene drives into human genomes, practices intended for surveillance or reversal also create fundamental ethical problems. Current policy guidelines do not comment explicitly on gene drives in humans. These considerations motivate an explicit moratorium as being warranted on gene drive development in heritable human genome editing. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Butler on Subjectivity and Authorship: Reflections on Doing Philosophy in the First PersonAsher WaldenWhat drew me to theology a number of years ago was that it was the most personal kind of philosophy, to the extent that it deals with the most important issues of one’s own “personal” life. It used the tools of the philosophical tradition to address questions that the philosophers—especially those in the University of Chicago’s (...) analytically oriented environment—seemed not to want to ask; at least, not when I was an undergraduate there some years ago. My engagement with philosophy has always been about personal questions, and in the past I tended to eschew the political realm as being at best external to the more essential business of philosophy. But the questions I have been asking lately are rather different from the ones that concerned me back when I was still in Chicago. Largely due to the birth of my son two years ago, questions that before were only secondhand—questions about education, democracy, and debt—are now very personal and very, very important to me. I am perhaps a latecomer to the position that, as the saying goes, “The personal is the political.” But being a convert, like the earliest Christian Apologists, may afford me an opportunity and motivation to argue the position all the more earnestly.The way I have sought to incorporate these different questions and perspectives in my theologizing has primarily been through engagement with the Confucian philosophical tradition. The Confucian tradition is, in large measure, a series of reflections on the individual’s utter embeddedness in familial, sociopolitical, environmental, and sacred structures and forces. The tradition has its own resources for expressing and navigating this embeddedness, but what has become interesting to me is that the requisite resources are being developed independently, and perhaps more forcefully, within the realm of postmodern and postcolonial theory. Indeed, these newer articulations may [End Page 55] well be vital for present-day Confucian thinkers to consider in reformulating and re-presenting their own commitments and traditions in the current era.The questions posed to and for the current paper are, first, how does the religiously committed philosopher (or theologian, in a loose sense of the term) consciously incorporate political and economic considerations into her theological research and discursive product; and second, to what extent and in what ways is it necessary for her also to include and address her own personal life/history into the same. Naturally, these are questions which religious thinkers will ask and answer anew for themselves, and repeatedly. My own engagement with Judith Butler in the current paper will merely provide, I hope, one possible model for such an account of how the personal and the political may function in theological discourse. Generally, the model given here suggests that such considerations are not external add-ons to the more essential “hard-core” theologizing of the doctrines of God and Christology. It is not a matter of (first) theory and (then) application. Rather, theological discourse is one place where ethical subjectivity is attained, if provisionally, through conscientious and critical engagement with both one’s religious tradition and the sociopolitical-economic structures in which those traditions are practiced, and where one’s own place within those structures is both questioned and created.In her recent work Giving an Account of Oneself, Judith Butler continues her project of deconstructing the metaphysics of the substantive self, begun in her deservedly noted early work, Gender Trouble. In particular, she argues that the subject comes into being through processes and in contexts that, while not completely determinative of one’s subjectivity, do limit one’s ability to give a complete account of oneself, one’s actions and motivations. She asks the important question of whether this opacity of the conditions of one’s coming into being limits the possibility of taking responsibility, or being held responsible, for one’s actions. She ultimately finds, with Foucault, that selfhood is itself an ethical process, one occasioned and in large part constituted by the call, and subsequent attempt, to give an account.The question which drives Butler’s essay is, generally, if the subject comes... (shrink)

This book explores the problem of moral metaphysics through investigations of four pivotal philosophers. It uses the contemporary idea of moral sentimentalism as a comparative category to explore the problems and challenges inherent in the project of moral metaphysics.

The study of memory is witnessing a spirited clash between proponents of traditional laboratory research and those advocating a more naturalistic approach to the study of “real-life” or “everyday” memory. The debate has generally centered on the “what” (content), “where” (context), and “how” (methods) of memory research. In this target article, we argue that the controversy discloses a further, more fundamental breach between two underlying memory metaphors, each having distinct implications for memory theory and assessment: Whereas traditional memory research has (...) been dominated by thestorehousemetaphor, leading to a focus on thenumberof items remaining in store and accessible to memory, the recent wave of everyday memory research has shifted toward acorrespondencemetaphor, focusing on theaccuracyof memory in representing past events. The correspondence metaphor calls for a research approach that differs from the traditional one in important respects: in emphasizing the intentional –representational function of memory, in addressing the wholistic and graded aspects of memory correspondence, in taking an output-bound assessment perspective, and in allowing more room for the operation of subject-controlled metamemory processes and motivational factors. This analysis can help tie together soine of the what, where, and how aspects of the “real-life/laboratory” controversy. More important, however, by explicating the unique metatheoretical foundation of the accuracy-oriented approach to memory we aim to promote a more effective exploitation of the correspondence metaphor inbothnaturalistic and laboratory research contexts. (shrink)

It is tempting to invoke organismal selection as perpetually optimizing the function of any given gene. However, natural selection can drive genic functional change without improvement of biochemical activity, even to the extinction of gene activity. Detrimental mutations can creep in owing to linkage with other selectively favored loci. Selection can promote functional degradation, irrespective of genetic drift, when adaptation occurs by loss of gene function. Even stabilizing selection on a trait can lead to divergence of the underlying molecular constituents. (...) Selfish genetic elements can also proliferate independent of any functional benefits to the host genome. Here we review the logic and evidence for these diverse processes acting in genome evolution. This collection of distinct evolutionary phenomena – while operating through easily understandable mechanisms – all contribute to the seemingly counterintuitive notion that maintenance or improvement of a gene's biochemical function sometimes do not determine its evolutionary fate. (shrink)

The Einstein–Podolsky–Rosen paradox (1935) is reexamined in the light of Shannon’s information theory (1984). The EPR argument did not take into account that the observer’s information was localized, like any other physical object.

The paper offers a new reading of the argument against poetry in Plato’s Republic 10. I argue that Socrates’ corruption charges rely on the tripartite theory of the soul, and that metaphysical doctrines play a role only in the first charge, which demonstrates that the poets are not qualified to teach by reducing tragic poetry to mimetic skill. This accusation clears the way for two corruption charges: the strengthening of appetite, and the softening of spirit (i.e., ‘the greatest charge’). The (...) former focuses on the dangerous association between the poets and the largest appetitive class in the city (hoi polloi), while the latter focuses on the corruption of the educated elite (hoi epieikeis). (shrink)

Bell inequalities are derived for any number of observers, any number of alternative setups for each one of them and any number of distinct outcomes for each experiment. It is shown that if a physical system consists of several distant subsystems, and if the results of tests performed on the latter are determined by local variables with objective values, then the joint probabilities for triggering any given set of distant detectors are convex combinations of a finite number of Boolean arrays, (...) whose components are either 0 or 1 according to a simple rule. This convexity property is both necessary and sufficient for the existence of local objective variables. It leads to a simple graphical method which produces a large number of generalized Clauser-Horne inequalities corresponding to the faces of a convex polytope. It is plausible that quantum systems whose density matrix has a positive partial transposition satisfy all these inequalities, and therefore are compatible with local objective variables, even if their quantum properties are essentially non-local. (shrink)