Conclusions about the morality of abortion have been thought to receive some support from metaphysical doctrines about persons. The paper studies four instances in which philosophers have sought to draw such morals from metaphysics. It argues that in each instance the metaphysics makes no moral difference, and the manner of failure seems indicative of a general epistemic irrelevance of metaphysics to the moral issue.

Jim Stone has argued that a multiversal version of Modal Realism together with Counterpart Theory cannot account for a certain intuitive possibility. Roughly, it is the possibility that all free moral choices of a certain sort are the right choices in all cases in the multiverse. The present work offers an explanation of how the metaphysics in question can account for the intuitive possibility in question.

E j lemmon, B a o williams, Bas van fraassen, And ruth marcus have argued on behalf of the existence of moral dilemmas, I.E., Cases where an agent is subject to conflicting absolute moral obligations. The paper criticizes this support and contends that no moral dilemma is possible.

In a single richly suggestive word, "song," Sessions sums up all the factors—melodic, harmonic, rhythmic, textural, dynamic, articulative—that contribute to what I have called musical line: "Each one of these various aspects derives its functions from the total and indivisible musical flow - the song. . . . [M]usic can be genuinely organized only on this integral basis, and . . . an attempt to organize its so-called elements as separate factors is, at the very best, to pursue abstraction, and, (...) at the worst, to confuse genuine order with something which is essentially chaotic."1 Analysis, whose functions as a valuable tool for the training of composer and performer Sessions has so well explicated and demonstrated, is now all too often called on to justify and to further this essentially unmusical, or at best nonmusical, pursuit of abstraction. Herein lies the explanation for the increasing doubt of the general usefulness of the discipline that Sessions has lately evidenced.2 For the creation and analysis of art are two distinct activities, confused at the artist's peril. ". . . [A]nalysis cannot reveal anything whatever except the structural aspects of a completed work . . . Discoveries after the fact are necessarily verbalized in terms of preexistent contexts; it hears forward, as it were, in terms of the contexts.3 · 1. "Song and Pattern in Music Today," The Score 17 : 77-78.· 2. See, e.g., "Song and Pattern," p. 78, and "To the Editor," Perspectives of New Music 5 : 92-93.· 3. Questions about Music , pp. 109-110. Edward T. Cone, composer and professor of music at Princeton University, has written Musical Form and Musical Performance and The Composer's Voice, edited Berlioz's Fantastic Symphony, and coedited Perspectives on American Composers and Perspectives on Schoenberg and Stravinsky. In a slightly different form, this essay was delivered as an address at Amherst College on the occasion of a music festival honoring Roger Sessions. (shrink)

The essay argues that some factual propositions are both clearly true and not known. The essays argues that those propositions are evidence for anyone to whom they are clearly true.

O evidencialismo é, primordialmente, uma tese sobre a justificação epistêmica e, secundariamente, uma tese sobre o conhecimento. Sustenta que a justificação epistêmica é superveniente da evidência. As versões do evidencialismo diferem quanto ao que conta como evidência, quanto ao que seja possuir algo como evidência e quanto ao que um dado corpo de evidência apóia. A tese secundária é a de que o apoio evidencial é necessário ao conhecimento. O evidencialismo ajuda a formular as questões epistemológicas de uma forma que (...) é ótima para que se perceba o núcleo dos problemas. Oferece soluções, sem mascarar as dificuldades. Nós fornecemos ilustração disso através da consideração dos problemas da justificação a priori e do ceticismo. O evidencialismo também oferece a base para que se compreenda uma grande variedade de fatos e conceitos epistemológicos. Nós fornecemos ilustração disso, mostrando que o evidencialismo pode explicar como a justificação pode ser anulada, como as atitudes distintas da crença podem ser objeto de avaliação e como a própria prática da filosofia é epistemicamente valiosa. PALAVRAS-CHAVE – Evidencialismo. Evidência. Justificação. Conhecimento. A priori. Ceticismo. ABSTRACT Evidentialism is primarily a thesis about epistemic justification and secondarily a thesis about knowledge. It holds that epistemic justification supervenes on evidence. Versions of evidentialism differ about what counts as evidence, what it is to have something as evidence, and what a particular body of evidence supports. The secondary thesis is that evidential support is necessary for knowledge. Evidentialism helps to frame epistemological issues in a way that is optimal for seeing the heart of the problems. It offers solutions without disguising the difficulties. We illustrate this by considering the problems of a priori justification and skepticism. Evidentialism also provides the basis for understanding a variety of epistemological facts and concepts. We illustrate this by showing that evidentialism can explain how justification can be defeated, how attitudes other than belief can be the object of evaluation, and how the practice of philosophy itself is epistemically valuable. KEY WORDS – Evidentialism. Evidence. Justification. Knowledge. A priori. Skepticism. (shrink)

Proofs have been given that the light-cone approximation can be analyzed in terms of the extended quantum-mechanical description of the space-time measurements by the complex numbers. It is then proved that the so established description is able to support both the asymptotical scale-invariant cross sections and the threshold behavior of the high-energy production processes.

Let be an o‐minimal expansion of an ordered group, and a dense set such that certain tameness conditions hold. We introduce the notion of a product cone in, and prove: if expands a real closed field, then admits a product cone decomposition. If is linear, then it does not. In particular, we settle a question from [10].

Abnormalities in the ability of cells to properly degrade proteins have been identified in many neurodegenerative diseases. Recent work has implicated synaptojanin 1 (SynJ1) in Alzheimer's disease and Parkinson's disease, although the role of this polyphosphoinositide phosphatase in protein degradation has not been thoroughly described. Here, we dissected in vivo the role of SynJ1 in endolysosomal trafficking in zebrafish cone photoreceptors using a SynJ1‐deficient zebrafish mutant, nrca14. We found that loss of SynJ1 leads to specific accumulation of late endosomes and (...) autophagosomes early in photoreceptor development. An analysis of autophagic flux revealed that autophagosomes accumulate because of a defect in maturation. In addition we found an increase in vesicles that are highly enriched for PI(3)P, but negative for an early endosome marker in nrca14 cones. A mutational analysis of SynJ1 enzymatic domains found that activity of the 5'phosphatase, but not the Sac1 domain, is required to rescue both aberrant late endosomes and autophagosomes. Finally, modulating activity of the PI(4,5)P2 regulator, Arf6, rescued the disrupted trafficking pathways in nrca14 cones. Our study describes a specific role for SynJ1 in autophagosomal and endosomal trafficking and provides evidence that PI(4,5)P2 participates in autophagy in a neuronal cell type. -/- . (shrink)

Mathematical tradition has it that transformations characterized by a negative Jacobian determinant are referred to as improper transformations. The symmetry of a physical object corresponding to such an improper transformation becomes an improper symmetry. Improper symmetries have been successfully used for the purpose of crystal symmetry. The extension of these purely spatial symmetries to the domain of spacetime has led to a prejudicial use of light-cone properties, thus affecting adversely an unbiased symmetry classification. We pinpoint these prejudicial procedures and trace (...) their historical origin, while presenting an alternative that restores an unbiased treatment of improper spacetime symmetries. The applications discussed relate to recent developments in the symmetry classification of magnetic crystals and to the extension of Neumann's principle to the time domain. (shrink)

A selection of papers presented at the III South Cone Meeting of Philosophy and History of Science. Papers are in Portuguese and Spanish.

This book contains a selection of papers presented at the V South Cone Meeting of Philosophy and History of Science. The language of the chapters is Portuguese, Spanish or English. Published by the South Cone Association for Philosophy and History of Science, www.afhic.org.

PURPOSE:To report the localization of a gene causing drusen and macular degeneration in a previously undescribed North American family. METHODS:Genetic mapping studies were performed using linkage analysis in a single family with drusen and atrophic macular degeneration. RESULTS:The clinical manifestations in this family ranged from fine macular drusen in asymptomatic middle-aged individuals to atrophic macular lesions in two children and two elderly patients. We mapped the gene to chromosome 6q14 between markers D6S2258 and D6S1644. CONCLUSIONS:In a family with autosomal dominant (...) drusen and atrophic macular degeneration, the gene maps to a 3.2-cM region on chromosome 6q14. This locus appears to be distinct from, but adjacent to, the loci for cone-rod dystrophy 7 (CORD7) and North Carolina macular dystrophy (MCDR1). Future identification of the gene responsible for the disease in this family will provide a better understanding of macular degeneration. (shrink)

Examinamos a argumentação de Cícero contra o estoicismo no De Fato tentando reconstruir a melhor argumentação de Crisipo para a posição de uma filosofia que concilie a postulação do destino com a da liberdade humana. Fazemos isso, contudo tendo em vista a maneira como esse programa estóico é lembrado por Leibniz na Teodicéia. A estratégia para tanto consiste em examinar primeiro a maneira como Crisipo e Cícero poderiam traduzir o problema da relação do destino em termos causais, sugerindo uma diferença (...) possível entre a solução que seria legitimamente a de Crisipo e a de Cícero. Depois, mas em função dessa primeira análise, procuramos entender como Crisipo poderia resolver o problema a partir da postulação autonomia do agente na deliberação, pressuposta a natureza do agente — e pressupostos alguns temas centrais da física e da lógica estóicas como a noção de corporais e incorporais. Aqui aparece o exemplo do cilindro e do cone, como atribuído a Crisipo por Cícero, exemplo cuja interpretação ocupará o restante do artigo. The Cylinder and the ConeWe shall try to find the best way by which Crhysippus philosophy puts fate and freedom together, we must first proceed through an examination of the plot of Cicero’s De Fato. There we shall come back to some Leibnizian remarks about the Fatum Stoicum in the Theodicy. The first step for that is the interpretation of the Ciceronian attempt to translate the problem in an ethiological one, and the statement of the different conceptual framework through which Crhysippus do the same. The final step is the analysis of the Stoic conception of autonomous action in the act of deliberation, supposing the nature of the agent in his commitments with some stoical tenets about the incorporeal, as it appears in their physics and their logics. It is in this step that we shall examine the example of the cylinder and the cone, as it is given by Crhysippus through Cicero’s testimony, and try to extend that analysis to its ultimate consequences. (shrink)

A recently formulated concept of stochastic localizability is shown to be consistent with a concept of stochastic microcausality, which avoids the conclusions of Hegerfeldt's no-go theorem as to the inconsistency of sharp localizability of quantum particles and Einstein causality. The proposed localizability on quantum space-time is shown to lead to strict asymptotic causality. For finite time evolutions, upper bounds on propagation to the exterior of stochastic light cones are derived which show that the resulting probabilities are too small to be (...) actually observable in a realistic context. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:The Tragic Vision of African American ReligionPaul E. CapetzThe Tragic Vision of African American Religion Matthew V. Johnson New York, N.Y.: Palgrave Macmillan, 2010. 189 pp. $75.00Matthew Johnson’s profound book The Tragic Vision of African American Religion sheds new light upon the distinctive nature of African American religion. Adequate interpretation of this topic requires understanding the traumas inflicted upon Africans sold into slavery, their existential predicaments before and (...) after emancipation, and the ongoing plight of their descendants whose psyches have been indelibly scarred by this traumatic history. Johnson avails himself of the resources of philosophical theology, psychoanalytic theory, and literary criticism to argue his thesis that African American religion expresses a tragic vision of reality. Besides providing an illuminating analysis of the traumatic experience underlying this religious vision, Johnson presents a compelling constructive proposal as to the broader implications of his thesis for Christian theology at large.As a student of David Tracy and Langdon Gilkey, Johnson sees the necessity for rigorous philosophical reflection in theology. Because the spirituality of the black church stands in some real tension with the traditional theological categories inherited from Europe, Johnson proceeds with “a phenomenological orientation grounded in a philosophical hermeneutical approach” that allows him to excavate the traumatic experiences informing this spirituality (4). He skillfully uses the concepts of mourning, loss, longing, and desire developed in psychoanalytical theory to probe the significance of trauma for grasping the dynamics of African American spirituality. He engages literary criticism and argues convincingly for a distinction between “tragedy” as a literary genre and the tragic vision it articulates. Indeed, the tragic vision is prior to tragedy. The tragic is not the encounter with meaninglessness per se but “the always already aesthetic representation of the encounter, which preserves its terrible truth in a transfigured vision of reality” (6). This vision affirms life while facilitating “the recognition and embrace of the darker, more fundamental truths of life” (7).Cognizant that other theologians have declared the incompatibility of Christian faith with a tragic vision of reality, Johnson believes otherwise. He insists that the tragic is fundamental to human experience as such, although it is frequently evaded by strategies of foreclosure—including those of Christian theology—that falsify the experience. Yet the distinctive thing about the black religious experience is the way African Americans made the Christian faith [End Page 215] their own by transforming it at a deep spiritual level through their tragic vision. Mildly critical of previous formulations of black theology, Johnson contends that this involved much more than the affirmation that God cares about the sociopolitical liberation of oppressed people. The Christian tragic vision of the black experience offers the possibility of a new basis for “theology in an African American key” (6). Since he understands himself primarily as a Christian theologian, however, Johnson addresses an audience consisting of more than fellow black theologians. He rightly highlights a profound truth that white theologians have largely failed to grasp: the contribution of the black church “transcends the confines of African American culture to speak meaningfully to a Christian faith struggling to remain viable in a meaningful way” (10).James Cone once issued this challenge: “Why don’t white theologians make racism their issue?” White theologians who ponder Johnson’s book will begin to understand the full import of this challenge: by opening ourselves unreservedly to the pain of our black sisters and brothers, we may discover anew the meaning of that genuine humanity to which the gospel summons all people. A theological reformulation of Christian faith as tragic in the light of the traumas of the black experience could occasion a much needed reformation of the white churches in America.Paul E. CapetzUnited Theological Seminary of the Twin CitiesCopyright © 2012 The Society of Christian Ethics... (shrink)

This article aims to illustrate how racism could be addressed. Three pedagogies - a dangerous pedagogy as courageous dialogue, a pedagogy of discomfort and a critical pedagogy - are presented as examples to reframe the issue of racism. The contribution of James Cone is applied as a broad descriptive theoretical framework. Cone's views in this article resonate with the history of contemporary racism in South Africa and will therefore be juxtaposed by the contribution of South African theologians. A fourth pedagogy, (...) namely, a pedagogy of freedom and healing, is introduced to address gaps in the first three pedagogies. The objective is to realise freedom or healing between people of different races. (shrink)

We investigated how color preferences vary according to season and whether those changes could be explained by the ecological valence theory. To do so, we assessed the same participants’ preferences for the same colors during fall, winter, spring, and summer in the northeastern United States, where there are large seasonal changes in environmental colors. Seasonal differences were most pronounced between fall and the other three seasons. Participants liked fall-associated dark-warm colors—for example, dark-red, dark-orange, dark-yellow, and dark-chartreuse—more during fall than other (...) seasons. The EVT could explain these changes with a modified version of Palmer and Schloss’ weighted affective valence estimate procedure that added an activation term to the WAVE equation. The results indicate that color preferences change according to season, as color-associated objects become more/less activated in the observer. These seasonal changes in color preferences could not be characterized by overall shifts in weights along cone-contrast axes. (shrink)

Purpose. To determine the potential of deforming broaching for the improvement of efficiency of cutter chisels in the mining industry. Methodology. The study of the application of the technological process of deforming broaching was carried out based on the experimental research into conditions of assembly of press couplings corresponding to cutting rock-destroying tools, the working surface of which is reinforced with solid-alloy inserts. Findings. Based on the conducted research, a new process of assembling the crowns of cutter chisels with the (...) use of deforming broaching was developed. Originality. It was determined that the range of angles of inclination of generatrix of the working cone of the deforming element and the roll-treading lip of the insert, which are necessary for efficient machining and pressing in crowns of cutters, is 4–16°. It was proven that the “solid alloy-steel” press couplings for cutter chisels will have the maximum bearing capacity at total tension a/d0 ≤ 3 %. It was found that it is necessary to foresee the following distribution of tensions: to perform 2 % of deformation by preliminary deforming broaching, and 1 % ‒ by pressing in an insert Practical value. The use of deforming broaching makes it possible to increase the strength of fastening the inserts of cutter chisels by 2 times, to reduce specific consumption of the tool by 4.4 times, and to increase the average drilling rate by 4 times. (shrink)

For ten years, between 1903 and 1913, Gertrude Stein saw human relationships as painful mathematical puzzles in need of solutions. Again and again, she converted the predicaments of her personal life into literary material, the better to solve and to exorcise them. The revelation that relationships had a structural quality came to her during the composition of Q.E.D. , when she grasped the almost mathematical nature of her characters' emotional impasse. Stein's persona in the novel comments on their triangular affair, (...) "Why it's like a piece of mathematics. Suddenly it does itself and you begin to see."1 The theory encouraged her to examine such situations as if they were case histories: she continued to study the same piece of mathematics from different angles in Fernhurst , Three Lives , and The Making of Americans . But whatever the sexual arrangements in these triangles, the powerful generally managed to impose their wills upon the less powerful, and the triangles resolved themselves into oppositional structures, pitting two against one. Gradually, when the couple began to replace the triangle as her structural model, Stein composed numerous verbal portraits of couples and their relationships. In two of these, "Ada" and "Two Women," Stein applied her general theory of relationships to the particular puzzle of female friendships because, I think, she felt that women's characters were most intensely molded in same-sex involvements. Although she attempted to "prove" these theories in distanced, deliberately depersonalized prose, we as readers must examine "the complex interplay of self-discovery and writing" from which her portraits emerged.2Stein's portraits of women entangled in familial and erotic bonds seem to invite us into "the process whereby the self creates itself in the experience of creating art"; to read them, we must "join the narrator in reconstructing the other woman by whom we know ourselves."3 This task of reconstruction implies that we must also rethink the place of biography—generally dismissed by New Criticism and its subsequent post-structuralist permutations as "mere" biography—in feminist critical projects. If it is true that "in reading as in writing, it is ourselves that we remake," then feminist critics have a special stake in understanding the biographical, and autobiographical, impulses at work in these activities.4 Stein's portraits, which hover between fiction and biography, raise important questions about the ways in which biographical information can justify our suspicion that female writers may be "closer to their fictional creations than male writers are."5 Recently, feminist critics have adapted psychoanalytic theory to examine the particular closeness of female characters in women's writing or to suggest a related closeness between the female author and her characters. We find it useful to speak of the pre-Oedipal structures and permeable ego boundaries that seem to shape women's relationships. Although Stein used very different psychological paradigms, she approached these same issues in her own studies of female friendships. Realizing that she preferred to write about women, she observed, "It is clearer…I know it better, a little, not very much better."6 In spite of her qualifications, she knew that she could see the structuring principles of relationships with greater clarity when writing from her own perspective.1. Stein, "Fernhurst," "Q.E.D.," and Other Early Writings, ed. Leon Katz , p. 67.2. Elizabeth Abel, "Reply to Gardiner," Signs 6 : 444. For a very useful critical discussion of this complex issue, see Abel, "Merging Identities: The Dynamics of Female Friendship in Contemporary Fiction by Women," and Judith Kegan Gardiner, "The es of dentity: a Response to Abel on 'Merging Identities,'" in the same issue of Signs .3. Gardiner, "The es of dentity," p. 442.4. Jonathan Morse, "Memory, Desire, and the Need for Biography: The Case of Emily Dickinson," The Georgia Review 35 : 271. See also J. Gerald Kennedy's suggestive remarks on the "tension between personal confession and implacable theory" in Barthes' later work .5. Abel, "Reply to Gardiner," p. 444.6. Stein, The Making of Americans, cited in Richard Bridgeman, Gertrude Stein in Pieces , p. 78.Carolyn Burke, an Affiliated Scholar at the Center for Research on Women, Stanford University, has published articles on French feminist writing and on Mina Loy, whose biography she is now completing. The theoretical implications of this essay will be explored in her related study in progress on feminist biography. (shrink)

We investigate the complexity of isomorphisms of computable structures on cones in the Turing degrees. We show that, on a cone, every structure has a strong degree of categoricity, and that degree of categoricity is${\rm{\Delta }}_\alpha ^0 $-complete for someα. To prove this, we extend Montalbán’sη-system framework to deal with limit ordinals in a more general way. We also show that, for any fixed computable structure, there is an ordinalαand a cone in the Turing degrees such that the exact complexity (...) of computing an isomorphism between the given structure and another copy${\cal B}$in the cone is a c.e. degree in${\rm{\Delta }}_\alpha ^0\left$. In each of our theorems the cone in question is clearly described in the beginning of the proof, so it is easy to see how the theorems can be viewed as general theorems with certain effectiveness conditions. (shrink)

The Association of Philosophy and History of Science in the South Cone is a non-profit academic association, founded on May 5th, 2000, in Quilmes, Argentina, at the closing ceremony of the 2nd Meeting of Philosophy and History of Science in the South Cone. The creation of this Association was the result of the interest to deepen and strengthen the exchange between the researchers in Philosophy and History of Science from the countries of the South Cone, from the two first meetings (...) that took place in Porto Alegre and Quilmes onwards. Since then, there have been biennial meetings organized as its responsibility. The main aim of AFHIC is to contribute to a better understanding of science from a philosophical as well as a historical point of view in the Spanish and Portuguese-speaking countries, especially in those which belong to the American South Cone, promoting a space for reflection, exchange, discussion, communication, and dissemination of such an understanding. This volume is - with minor changes - the English version of Fisica: Estudos Filosofi cos e Historicos. It is composed of refereed and, in some cases, opportunely modifi ed contributions made by members of the Association of Philosophy and History of Science in the South Cone, some of them who are unfortunately no longer among us. Pablo Lorenzano Director of AFHIC's Book Series. (shrink)

Q.E.D. presents some of the most famous mathematical proofs in a charming book that will appeal to nonmathematicians and math experts alike. Grasp in an instant why Pythagoras’s theorem must be correct. Follow the ancient Chinese proof of the volume formula for the frustrating frustum, and Archimedes’ method for finding the volume of a sphere. Discover the secrets of pi and why, contrary to popular belief, squaring the circle really is possible. Study the subtle art of mathematical domino tumbling, and (...) find out how slicing cones helped save a city and put a man on the moon. (shrink)

We investigate the orbit of a low computably enumerable set under automorphisms of the partial order of c.e. sets under inclusion. Given an arbitrary low c.e. set A and an arbitrary noncomputable c.e. set C, we use the New Extension Theorem of Soare to construct an automorphism of mapping A to a set B such that CTB. Thus, the orbit in of the low set A cannot be contained in the upper cone above C. This complements a result of Harrington, (...) who showed that the orbit of a noncomputable c.e. set cannot be contained in the lower cone below any incomplete c.e. set. (shrink)

Q.E.D. presents some of the most famous mathematical proofs in a charming book that will appeal to nonmathematicians and math experts alike. Grasp in an instant why Pythagoras’s theorem must be correct. Follow the ancient Chinese proof of the volume formula for the frustrating frustum, and Archimedes’ method for finding the volume of a sphere. Discover the secrets of pi and why, contrary to popular belief, squaring the circle really is possible. Study the subtle art of mathematical domino tumbling, and (...) find out how slicing cones helped save a city and put a man on the moon. (shrink)

Teoria e práticas semióticas -- Literatura e ideologia -- Apontamentos para a questão do ícone -- Arquitetura como processo de linguagem -- Por uma classificação da linguagem escrita.

Dans les années suivantes, ces rencontres semblent s'être dotées du statut de personne morale (association) Associação de Filosofia e História da Ciência do Cone Sul (AFHIC).

A completely mitotic computably enumerable degree is a c.e. degree in which every c.e. set is mitotic, or equivalently in which every c.e. set is autoreducible. There are known to be low, low2, and high completely mitotic degrees, though the degrees containing non-mitotic sets are dense in the c.e. degrees. We show that there exists an upper cone of c.e. degrees each of which contains a non-mitotic set, and that the completely mitotic c.e. degrees are nowhere dense in the c.e. (...) degrees. We also show that there is a set computably enumerable in and above 0′ which is not the jump of any completely mitotic degree. (shrink)

Classification of certain group-like FL $_e$ -chains is given: We define absorbent-continuity of FL $_e$ -algebras, along with the notion of subreal chains, and classify absorbent-continuous, group-like FL $_e$ -algebras over subreal chains: The algebra is determined by its negative cone, and the negative cone can only be chosen from a certain subclass of BL-chains, namely, one with components which are either cancellative (that is, those components are negative cones of totally ordered Abelian groups) or two-element MV-algebras, and with no (...) two consecutive cancellative components. It is shown that the classification theorem does not hold if we drop the absorbent-continuity condition. Our result is the first classification theorem in the literature on FL $_e$ -algebras that does not assume the condition of being naturally ordered (which, under certain conditions, corresponds to continuity of the monoid operation). In our classification theorem, continuity is replaced by the much weaker absorbent-continuity. (shrink)

The paper deals with involutive FLe-monoids, that is, commutative residuated, partially-ordered monoids with an involutive negation. Involutive FLe-monoids over lattices are exactly involutive FLe-algebras, the algebraic counterparts of the substructural logic IUL. A cone representation is given for conic involutive FLe-monoids, along with a new construction method, called twin-rotation. Some classes of finite involutive FLe-chains are classified by using the notion of rank of involutive FLe-chains, and a kind of duality is developed between positive and non-positive rank algebras. As a (...) side effect, it is shown that the substructural logic IUL plus t ↔ f does not have the finite model property. (shrink)

Michael Bergmann seeks to motivate his externalist, proper function theory of epistemic justification by providing three objections to the mentalism and mentalist evidentialism characteristic of nonexternalists such as Richard Feldman and Earl Conee. Bergmann argues that (i) mentalism is committed to the false thesis that justification depends on mental states; (ii) mentalism is committed to the false thesis that the epistemic fittingness of an epistemic input to a belief-forming process must be due to an essential feature of that input, (...) and, relatedly, that mentalist evidentialism is committed to the false thesis that the epistemic fittingness of doxastic response B to evidence E is an essential property of B–E; and (iii) mentalist evidentialism is “unmotivated”. I object to each argument. The argument for (i) begs the question. The argument for (ii) suffers from the fact that mentalist evidentialists are not committed to the consequences claimed for them; nevertheless, I show that there is, in the neighborhood, a substantive dispute concerning the nature of doxastic epistemic fittingness. That dispute involves what I call “Necessary Fittingness”, the view that, necessarily, exactly one (at most) doxastic attitude ( belief , or disbelief , or suspension of judgment ) toward a proposition is epistemically fitting with respect to a person’s total evidence at any time. Reflection on my super-blooper epistemic design counterexamples to Bergmann’s proper function theory reveals both the plausibility of Necessary Fittingness and a good reason to deny (iii). Mentalist evidentialism is thus vindicated against the objections. (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)

James H. Cone is without question the most important Black Theologian of the last century in U.S. theology. This essay is an engagement with his work, focusing in particular on the shifts from European theology, in his Black Theology & Black Power, to Black Aesthetic Religious production, in The Spirituals & The Blues, to The Cross and the Lynching Tree. The core theme of this essay is the entanglement of spiritual/religious colonization with production/invention of racial hierarchies that then became the (...) crucibles for the forging of racist imaginaries that entailed, authorized, enshrined, and sacralized white supremacy. The Janus face of this alchemy, however, was the production of a black religion of liberation that entailed decolonizing the “blackness” invented by the modern project of religious racist colonization. The essay considers how Cone’s works empowers us to think through the analogies between the process of the colonization of the indigenous peoples of the so-called “New World” and the “enslavement” of African peoples. The similarities have to do with the coupling of the colonization of imaginaries with the imposition of racial imaginaries, i.e. religious conquest is also a racial conquest, and conversely, racial conquest is also a religious conquest. (shrink)

Estabelecer uma cone çáo entre um pressuposto etico - viver a vida e um enunciado ontologico: uma vida em sua imanencia. Articular os conceitos filosoficos ao seu plano de imanencia. lnstaurar uma relaç áo inequivoca entre imanencia e vida filosofica em Gilles Deleuze. ' Palavras-chave: Imanencia/ vidal ontologia/ Deleuze.

I discuss the idea of relativistic causality, i.e., the requirement that causal processes or signals can propagate only within the light-cone. After briefly locating this requirement in the philosophy of causation, my main aim is to draw philosophers' attention to the fact that it is subtle, indeed problematic, in relativistic quantum physics: there are scenarios in which it seems to fail. I set aside two such scenarios, which are familiar to philosophers of physics: the pilot-wave approach, and the Newton-Wigner representation. (...) I instead stress two unfamiliar scenarios: the Drummond-Hathrell and Scharnhorst effects. These effects also illustrate a general moral in the philosophy of geometry: that the mathematical structures, especially the metric tensor, that represent geometry get their geometric significance by dint of detailed physical arguments. (shrink)

The present article articulates the strategy of much of my work to date, which has been concerned to understand how we can possibly come to have any objective understanding of the mind. Generally, I align myself with those who think the best prospect of such an understanding lies in a causal/computational/representational theory of thought (CRTT). However, there is a tendency in recent developments of this and related philosophical views to burden the crucial property of intentionality with what I call Strong (...) Externalism, a state’s intentional content being determined by some real external phenomenon to which the state is causally related. I argue against this tendency, drawing attention to the crucial role in cognitive scientific explanations of empty concepts, such as [angel], and the “intentional inexistents” that such concepts “represent.” This obliges me to take a brief excursion into what I hope is a minimal metaphysics, defending a methodology I call the “LEXX” strategy that treats phenomena as real only insofar as they are needed in genuine explanations. After a brief discussion of the need for greater patience generally regarding a theory of intentionality, I deploy this strategy with regard to many phenomena that are the purported objects of mental states, e.g. triangles, cones, words, sentences, colors, mental images and qualia. I argue that these phenomena do not actually exist: they are mere intentional inexistents, unreal projections of the intentional content of various mental states, and not themselves needed in any genuine explanations. In a concluding section, I summarize my suggestions about how a CRTT can explain the various illusions we have in this regard, particularly those concerning consciousness and qualia. (shrink)

Not only our conscious expectations, wishes and intentions are directed towards the future, but also pre- or unconscious tendencies, hunches and anticipations. Using a term of Ernst Bloch, they can be summarized as thenot-yet-conscious. This not-yet-conscious mostly unfolds spontaneously and without plan; it is not directly anticipated or aimed at, but rather comes to awareness in such a way that the subject is, as it were, surprised by itself. Thus it gives rise to phenomena such as the striking, the coincidental, (...) the new, and the improvised, which are particularly important for understanding creative and therapeutic processes. The paper aims at providing a general phenomenological framework for the understanding of not-yet-conscious dynamics and their unfolding in different contexts. To this end, the structure of the not-yet-conscious is examined in light ofprotention, in which the phenomenon is fundamentally to be located. I propose to describe the general structure of protention as a future-directed horizon of graded probabilities, i.e., as a “protentional cone”. This cone is fed by current experiences and bodily tendencies and is focused to varying degrees by attention. This results in either more focused or rather defocused states of anticipation, the latter giving space to the not-yet-conscious as a meaning “in statu nascendi”. On this basis, selected manifestations of the not-yet-conscious are analyzed, including extemporaneous speech, artistic improvisation and creativity, bodily meaning implicates, decision-making, and meaningful coincidence. (shrink)

The generality problem is one of the most pressing challenges for reliabilism. The problem begins with this question: of all the process types exemplified by a given process token, which types are the relevant ones for determining whether the resultant belief counts as knowledge? As philosophers like Earl Conee and Richard Feldman have argued, extant responses to the generality problem have failed, and it looks as if no solution is forthcoming. In this paper, I present a new response to (...) the generality problem that illuminates the nature of knowledge-enabling reliability. My response builds upon the insights of Juan Comesaña’s well-founded solution to the generality problem, according to which relevant types are content–evidence pairs, i.e., descriptions of both the target belief’s content and the evidence on which the belief was based. While most responses to the generality problem, including Comesaña’s, only posit one relevant type for any given process token, I argue that knowledge-enabling reliability requires a process token to be reliable with respect to multiple content–evidence pairs, each with varying degrees of descriptive specificity. I call this solution multi-type evidential reliabilism. After offering a clear formulation of MTE, I conclude by arguing that MTE is sufficiently informative to rebut Conee and Feldman’s generality problem objection to a reliability condition on knowledge. (shrink)

Where are we to look for the unique hues? Out in the world? In the eye? In more central processing? 1. There are difficulties looking for the structure of the unique hues in simple combinations of cone-response functions like ( L − M ) and ( S − ( L + M )): such functions may fit pretty well the early physiological processing, but they don’t correspond to the structure of unique hues. It may seem more promising to look to, (...) e.g., Hurvich & Jameson’s ‘chromatic response functions’; but these report on psychophysical behaviour, not on underlying physiology. So ‘opponent processing’ isn’t any particular help on the unique hues—and even physiology in general seems not to have come up with any good correlate or explanation. 2. Wright ( Review of Philosophy and Psychology 2: 1–17, 2011 ) looks in a different place: to (a) magnitude of total visual response that a stimulus light provokes, the maxima and minima of which, he thinks, give us the boundaries of the main hue categories (Wright connects these with Thornton’s ‘prime’ and ‘antiprime’ colours in an illuminant: Journal of the Optical Society of America 61 ( 1971 ): 1155–1163); and (b) the ratio of chromatic to achromatic response, the maxima and minima of which, he suggests, give us the focal points of the unique hues. The suggestions are extremely interesting; but the desired correspondences have some counterexamples; and where they hold, one could wonder how much they depend upon the particular choice of functions to measure (a) and (b); and one could hope for more of an explanatory linkage between the sets of items in question. 3. Could the unique hues come from, so to speak, the external world? White and black can easily be defined as particular kinds of reflectance. What of the standard four unique hues? Variation in kinds of sunlight and skylight coincides well with variation along a line from unique yellow to unique blue (cf. Shepard 1992 , Mollon 2006 ). If we wanted something to calibrate our standards for unique yellow and blue as the lens of the eye changes with age, and despite interpersonal cone differences, this would be a good basis—and there are several ways this can be extended to surface colours. But is there any essential connection between these things: is there any rationale why the light of the sun and the sky should be counted as unique hued ? An answer may be: because in our environment, these illuminants are as close to white (or the natural illuminant colour) as you can get—to see things tinged with sunlight or skylight should be to see them minimally tinged with any alien colour. Whereas other hues in an illuminant would be treated as tinging with a more alien colour the thing seen. (shrink)