Our question is: can we embed minimal negation in implicative logics weaker than I→? Previous results show how to define minimal negation in the positive fragment of the logic of relevance R and in contractionless intuitionistic logic. Is it possible to endow weaker positive logics with minimal negation? This paper prooves that minimal negation can be embedded in even such a weak system as Anderson and Belnap’s minimal positive logic.

In our paper “A general characterization of the variable-sharing property by means of logical matrices”, a general class of so-called “Relevant logical matrices”, RMLs, is defined. The aim of this paper is to define a class of simpler Relevant logical matrices RMLs′serving the same purpose that RMLs, to wit: any logic verified by an RML′has the variable-sharing property and related properties predicable of the logic of entailment E and of the logic of relevance R.

Łukasiewicz 3-valued logic Ł3 is often understood as the set of all valid formulas according to Łukasiewicz 3-valued matrices MŁ3. Following Wojcicki, in addition, we shall consider two alternative interpretations of Ł3: ‘truth-preserving’ Ł3a and ‘well-determined’ Ł3b defined by two different consequence relations on the 3-valued matrices MŁ3. The aim of this article is to provide a Routley–Meyer ternary semantics for each one of these three versions of Łukasiewicz 3-valued logic: Ł3, Ł3a and Ł3b.

This article addresses ontological negotiations in the Global South through three case studies of community-based research in Brazil and Ghana. We argue that ontological perspectives of Indigenous and other subjugated communities require an ontological pluralism that recognizes the plurality of both representational tools and ways of being in the world. Locating these two readings of ontological pluralism in the politics of the Global South, the article highlights a wider dynamic from ontological paternalism to ontological diversity to ontological decolonization. We conclude (...) by arguing that this dynamic provides important lessons for reorienting agendas in social ontology through Southern Ontologies. (shrink)

El diálogo que aquí se transcribe discurre por Sevilla y el pensamiento de Ortega y Gasset. Se va hablando de la razón topográfica, de cosmopolitismo y de Don Juan, figura objeto de una reflexión filosófica que imita los métodos de dos escuelas antiguas: el diálogo socrático y el paseo peripatético. Partiendo del parque de María Luisa, la conversación recorre el centro de la capital hispalense hasta el barrio de la Macarena, sigue el curso del Guadalquivir, recala en Casa Robles (...) y termina frente a la Maestranza. En última instancia, no se hace sino poner en perspectiva o situación algunas meditaciones magistralmente escritas por Ortega y tirar del hilo. Con ello actualizamos dos claves orteguianas que consideramos fundamentales: la concepción de la vida como diálogo con el contorno y la condición dramática del pensar. (shrink)

How do thought and language manage to be 'about' aspects of the world? J. Robert G. Williams investigates how representation arises out of a fundamentally non-representational world, showing the explanatory relations between the representational properties of language, of thought, and of perception and intention.

Prólogo por A. Gómez Robledo.--Las mocedades de Caso, por J. Gaos.--Antonio Caso, pensador y moralista, por E. Garcia Máynez.--Antonio Caso y el heroismo filosófico, por O. Robles.--Don Antonio Caso y las ideas contemporáneas en México, por P. Romanell.--Antonio Caso y la mexicanidad, por L. Zea.--Caso, su concepto de la filosofia, por R. Moreno.--Las polémicas filosóficas de Antonio Caso, por J. Hernández Luna.--La biblioteca de Caso, por J. Gaos.--Antonio Caso visto desde la Universidad de BOston, por E. S. Brightman.--La filosofia (...) de las ciencias segun Antonio Caso, por D. Garcia Bacca.--Antonio Caso y Emile Meyerson, por E. Uranga.--La estética de ANtonio Caso, por J. M. Teran.--La filosofia social de Antonio Caso, por L. Recaséns Siches. (shrink)

J.L. Schellenberg offers a path to a new kind of religious outlook. Reflection on our early stage in the evolutionary process leads to skepticism about religion, but also offers a new answer to the problem of faith and reason, and the possibility of a new, evolutionary form of religion.

J. L. Ackrill; VIII*—Aristotle's Definitions of Psuche, Proceedings of the Aristotelian Society, Volume 73, Issue 1, 1 June 1973, Pages 119–134, https://doi.org.

Misconceptions about energy conservation abound due to the gap between physics and secondary school chemistry. This paper surveys this difference and its relevance to the 1690s–2010s Leibnizian argument that mind-body interaction is impossible due to conservation laws. Justifications for energy conservation are partly empirical, such as Joule’s paddle wheel experiment, and partly theoretical, such as Lagrange’s statement in 1811 that energy is conserved if the potential energy does not depend on time. In 1918 Noether generalized results like Lagrange’s and proved (...) a converse: symmetries imply conservation laws and vice versa. Conservation holds if and only if nature is uniform. The rise of field physics during the 1860s–1920s implied that energy is located in particular places and conservation is primordially local: energy cannot disappear in Cambridge and reappear in Lincoln instantaneously or later; neither can it simply disappear in Cambridge or simply appear in Lincoln. A global conservation law can be inferred in some circumstances. Einstein’s General Relativity, which stimulated Noether’s work, is another source of difficulty for conservation laws. As is too rarely realized, the theory admits conserved quantities due to symmetries of the Lagrangian, like other theories. Indeed General Relativity has more symmetries and hence more conserved energies. An argument akin to Leibniz’s finally gets some force. While the mathematics is too advanced for secondary school, the ideas that conservation is tied to uniformities of nature and that energy is in particular places, are accessible. Improved science teaching would serve the truth and enhance the social credibility of science. (shrink)

J. L. Ackrill; VIII*—Aristotle's Definitions of Psuche, Proceedings of the Aristotelian Society, Volume 73, Issue 1, 1 June 1973, Pages 119–134, https://doi.org.

With contributions by leading scholars in the field, this book is the first collection in the English language devoted to Baumgarten’s aesthetics.

Part I of this two-part paper provided a broad overview of clinical and experimental findings bearing on the neural correlates of conscious processes. It was argued that several neurocognitive models related to: orienting to the outer world, dream sleep, and the integration of sensory-motor representations, converge upon a core ‘conscious system’, dubbed the extended reticular-thalamic activating system . The functions of the ERTAS, which shares extensive projections with the cerebral cortex, are mostly ‘implicit’, in contrast to the explicit representation of (...) conscious content within the neocortex. Part II expands this ERTAS model to encompass: the generation of coherent patterns of EEG activation, the integration of distributed cortical processes into a stream of unified percepts , and selective attention, as well as links between the ERTAS and systems providing the neural substrates for episodic memory and volition. (shrink)

This analysis of Mexico’s nanotechnology policies utilizes indicators developed by the Organization for Economic Co-operation and Development, which in 2008 conducted a pilot survey comparing the nanotechnology policies of 24 countries. In this paper, we apply the same questionnaire to the Mexican case, adding business information derived from the National Institute of Statistics and Geography survey on nanotechnologies, also an OECD instrument.

Entendemos el concepto de “negación mínima” en el sentido clásico definido por Johansson. El propósito de este artículo es definir la lógica positiva mínima Bp+, y probar que la negación mínima puede introducirse en ella. Además, comentaremos algunas de las múltiples extensiones negativas de Bp+.“Minimal negation” is classically understood in a Johansson sense. The aim of this paper is to define the minimal positive logic Bp+ and prove that a minimal negation can be inroduced in it. In addition, some of (...) the many possible negation extensions of Bp+ are commented. (shrink)

Clarendon Later Ancient Philosophers General Editors: Professor Jonathan Barnes, Balliol College, Oxford, and Professor A. A. Long, University of California, Berkeley This series, which is modelled on the familiar Clarendon Aristotle and Clarendon Plato Series, is designed to encourage philosophers and students of philosophy to explore the fertile terrain of later ancient philosophy. The texts will range in date from the first century BC to the fifth century AD, and they will cover all the parts and all the schools of (...) philosophy. Each volume will contain a substantial introduction, an English translation, and a critical commentary on the philosophical claims and arguments of the text. The translations will aim primarily at accuracy and fidelity; but they will also be readable and accompanied by notes on textual problems that affect the philosophical interpretation. No knowledge of Greek or Latin will be assumed. Galen's On the Therapeutic Method, written late in his life, represents the distillation in its most complete form of Galen's views on the nature, genesis, proper classification, and treatment of disease. It was one of the most widely read of all classical texts during the Middle Ages and the Renaissance, and formed the core of the medical curriculum until the seventeenth century. Although still deeply influential in the nineteenth century, it has been unjustly neglected in modern times. The work contains a fascinating collection of views on scientific terminology and taxonomy, the application of the logical methods of collection and division to science, the axiomatization of science, and the structure of causation. Consequently it is a key text in later Greek philosophy of science. R. J. Hankinson provides here the first translation into any modern language of the first two books, together with an introduction and a philosophical commentary. (shrink)

The language of phenomenology includes terms such as intentionality, phenom- enon, insight, analysis, sense, not to mention the key term of Edmund Husserl’s manifesto, “the things themselves” to return to . But what does the “things them- selves” properly mean? How come the term is replaced by the “findings” over time? And what are the findings for? The investigation begins by looking at the tricky legacy of the modern turn, trying to clarify ties to past masters, including Francis- co Suárez (...) and Augustine of Hippo . The former, because his influence goes beyond René Descartes reaching undoubtedly Franz Brentano and his students, as well as Martin Heidegger . The latter, because Augustine gives a personal component to the Greek inheritance, marked by the “inward turn .” However, it would not be possible to review the history of thought without the help offered by Jan Patočka's analyses . Patočka discloses the “care” of the Greek philosophers, Plato and Dem- ocritus among others, “for the soul”, we would say with Patočka for “being,” whose sense “does not leave us indifferent” as the leitmotiv of Ancient Philosophy . Nev- ertheless, in his lectures on Plato and Europe, Patočka points out that you must be careful not to confuse the phenomena of things, of existens, with the phenomena of being . Finally, Patočka’s legacy is found in the efforts to reconcile the life-feeling with the modern construction of reality, which means “a radical reconstruction of the naive and natural world of common sense .” In some ways, intentionality is to be revised . (shrink)

There is as yet no general agreement about exactly when Locke's Second Treatise of Government was written. Primarily as a result of Peter Laslett's arguments, the old assumption that it was written after the Revolution of 1688 has been abandoned, and it is almost universally agreed that both of the Two Treatises were written (apart from a small number of additions made in 1689) in the period between Locke's return to England from France at the end of April 1679 and (...) his departure for Holland in August 1683. An earliest possible date for the First Treatise can be established without difficulty. It cannot have been started before Filmer's Patriarcha was published in the winter of 1679-80, and probably not before Locke bought his own copy on 22 January 1680. Theories about the composition of the Second Treatise may therefore be divided into two classes: those which suppose, with Laslett, that it was begun in 1679, before Patriarcha was published, and therefore before Locke could have formed any intention of writing the First Treatise; and those which hold that it was not started until Locke had written at least the main part of the First. The second is of course the traditional view, and one that was taken for granted before Laslett's work; its most notable defender has been Richard Ashcraft, who has accepted Laslett's demolition of the 1689 dating, but has diverged from him in ascribing the Second Treatise to the period after the dissolution of the Oxford Parliament in March 1681. Ashcraft's criticisms of Laslett have been accepted by several recent writers, notably David Wootton, Mark Goldie and John Marshall, but they themselves have not agreed with each other or with Ashcraft in their positive claims. The whole question is therefore worth examining again. (shrink)

With an intellectual autobiography by Hans J. Morgenthau.

Transcranial Magnetic Stimulation is a technique that may aid researchers in their attempts to elucidate the underlying brain functions involved in consciousness. By employing TMS along with other neuroimaging methods and case studies, researchers may be aided in addressing their various hypotheses. Employing the ‘brain as mobile’ analogy, it may be possible to determine the individual contributions of single elements of the brain without upsetting the overall balance.

Throughout the world, Eastern European critical theory is enjoying a moderate, yet exciting, resurgence. From its oppositional roots in praxis philosophy and critical sociology, this diffuse and dynamic tradition has expanded its field of concern to encompass, among other problems, the aporias of democracy, the Holocaust and legacies of totalitarianism, the vicissitudes of modern culture and the ethical imperatives of living after the grand narrative. In the process, Eastern European thought has come to figure as a vital alternative to the (...) dominant tendencies emanating from Frankfurt and Paris. This essay surveys and introduces a collection of papers delivered at The International Conference of Marxist Critical Theory in Eastern Europe held in Chengdu, P.R.C., in November 2018. It both highlights the thematic range of contemporary scholarship on Eastern European critical theory and signals potential directions in future research. (shrink)