This paper is dedicated to extending and adapting to modal logic the approach of fractional semantics to classical logic. This is a multi-valued semantics governed by pure proof-theoretic considerations, whose truth-values are the rational numbers in the closed interval $[0,1]$. Focusing on the modal logic K, the proposed methodology relies on three key components: bilateral sequent calculus, invertibility of the logical rules, and stability (proof-invariance). We show that our semantic analysis of K affords an informational refinement with respect to the (...) standard Kripkean semantics (a new proof of Dugundji’s theorem is a case in point) and it raises the prospect of a proof-theoretic semantics for modal logic. (shrink)

Este artículo utiliza las intuiciones de Carole Pateman, en su libro El contrato sexual, para criticar la manera en que las instituciones cuya racionalidad y legitimidad emergen del contractualismo moderno no consideran en igualdad de condiciones a las personas con discapacidad. Esto, a consecuencia de que el contrato social presupone ideas unívocas de racionalidad y cooperación que se definen a partir de los parámetros de las personas sin discapacidad. Así, el paradigma del capacitismo, que identifica a la ciudadanía con la (...) posesión de capacidades regulares, genera un contrato funcional que invisibiliza y naturaliza la discriminación fundada en la discapacidad. (shrink)

Das Buch entwickelt und verteidigt eine Form des ethischen Naturalismus. Es kreist um zwei Fragen, die durch einen Leitgedanken eng verbunden sind. Dieser Leitgedanke lautet, dass das Leben, das wir führen, mit allen seinen ethischen Aspekten als Teil der Natur anzusehen ist. Die erste Frage lautet, wie dieser Leitgedanke näher zu verstehen ist. Die zweite Frage lautet, was aus diesem Leitgedanken, so verstanden, folgt. Wie könnte das ethische Leben im Verlauf der Evolution des Menschen entstanden sein? Welche Folgen hätte das (...) für uns? Die Untersuchung setzt bei Darwins Grundeinsichten an, die sie durch die weitere Entwicklung der Theorie der Evolution durch natürliche Selektion und moderne Hypothesen zur Erklärung der Entstehung des ethischen Lebens bis zum aktuellen Stand der Diskussion verfolgt. Wie sich zeigt, ist eine naturalistische Deutung nicht nur mit ethischem Denken und Handeln vereinbar, sondern trägt auch dazu bei, dessen Strukturen zu erklären. Relativiert werden dagegen die Ansprüche vieler Moraltheorien, die von überzogenen Erwartungen im Hinblick auf die Objektivität oder die Formalisierbarkeit des Ethischen geleitet sind. Den Abschluss bildet eine Fallstudie zur Menschenwürde, die nach der Deutung dieses Buchs zwar naturalistisch umgedeutet werden muss, aber als eine zentrale ethische Idee erhalten bleiben kann. (shrink)

In this newly edited Book XI of Plato’s Republic, to be considered as the authentic conclusion of the dialogue, Socrates meets a Stranger from Trier, and discusses with him the questions of social reform, power and future revolutions.

Algunos críticos de la ciencia afirman que es sólo un punto de vista entre otros, sin alguna autoridad epistémica especial. No obstante, en este artículo se defiende que la idea de que la investigación científica involucra una perspectiva o punto de vista no impone una restricción a su ideal de objetividad. Primero se presentan algunas aclaraciones sobre la noción de punto de vista, luego se atiende al concepto de objetividad científica, y por último se enfrentan algunos desafíos que se desprenden (...) de la noción de punto de vista y amenazan rasgos de la objetividad científica vinculados con su autoridad epistémica. -/- Some critics of science claim that it is only a point of view among others, lacking any special epistemic authority. However, this paper contends that conceiving scientific inquiry as something that involves a perspective or a point of view does not pose a constraint on its ideal of objectivity. We first put forward some clarifications on the notion of point of view, followed by some observations on scientific objectivity; finally, we face some of the challenges that rise from the notion of point of view and threaten features of scientific objectivity tied to its epistemic authority.]. (shrink)

Poser ces questions, est-il soutenu dans ce recueil qui explore les référents culturels et les imaginaires paysagers issus de l'histoire, des pratiques d'aménagement et des politiques du paysage au Canada et en Europe, n'est-ce pas se ...

Questions about how closure is achieved in disputes involving new observational or experimental claims have highlighted the role of bodily knowledge possibly irreducible to written experimental protocols and instructions how to build and operate instruments. This essay asks similar questions about a scenario that is both related and significantly different: the replication of an invention, not of an observation or the instrument through which it produced. Furthermore, the machine considered here—Galileo’s compass or sector—was not a typical industrial invention (like a (...) spinning jenny), but a mathematical invention (a calculator), that is, a machine that produces numbers, not yarn. This case study describes some of the similarities and differences between replicating experiments, traditional machines producing material outputs, and mathematical inventions yielding calculations or information. This comparison indicates that, as in other kinds of replication, the replication of mathematical inventions involves texts (the calculator’s instructions) but that in this case bodily knowledge cannot be properly described as either tacit or explicit. It rather takes the shape of memory—muscle memory—that may be recalled from reading the instructions. (shrink)

The cognitive impairments shown by brain-damaged patients emphasize the role of task difficulty as a major determinant for performance. We discuss the proposal of Kurzban et al. in light of our findings on right-hemisphere–damaged patients, who show increasing awareness deficits for the contralesional hemispace when engaged with resource-consuming dual tasks. This phenomenon is readily explained by the assumption of unspecific depletable resources.

Mit der Digitalisierung geht ein fundamentaler, herausfordernder Wandel einher. Durch eine Begriffsbestimmung und Operationalisierung wird in diesem Beitrag der digitale Wandel aus wirtschaftsphilosophischer Sicht vorgestellt. Zunächst werden wirtschaftsphilosophische Grundlagen der Digitalisierung wie die Informationsethik erläutert, gefolgt von einer Diskussion der digitalen Wertschöpfung, die auf Überwachung aufbaut und von einer Überwachungskultur gespeist wird. Schließlich werden Zukunftsperspektiven zum Internet der Dinge, Pricing, Privatheit und der Digitalen Demokratie skizziert.

The aim of the present paper is to list the usual and some possible meanings--or at least those the writer found the most interesting--of the word 'level,' to specify them briefly, to illustrate them, and to propose some problems in which those concepts are involved. Should this semantical clarification prove useful in clearing the ground for ontological speculation, the thesis would be confirmed that there is no conflict between semantics and ontology as long as the former does not deny the (...) legitimacy of inquiries into the denotata of certain universal words, and as long as metaphysics is not reluctant to linguistic hygiene. (shrink)

Whereas ordinary legal documents are deployed as text documents for human consumption, AI & Law focuses on tackling the challenges surrounding the development of legal ontologies to assign meaning...

'Overpopulation' is often implicated as a major causative factor of poverty and environmental degradation in the developing world. This review of the population-resource debate focusses on Red, Green and neo-Malthusian ideologies to demonstrate how they have ramified into current economic and development theory. A central hypothesis is that key elements of Marxist analysis, tempered by the best of Green thought, still have much to offer the subject. The contributions of capitalism to 'underdevelopment', and its associated environmental crises, are clarified and (...) reasserted in a contemporary context. The concept of valuation vector is also introduced, and a novel closure of Blaikie's 'Chain of Explanation' is proposed. The Circuit of Capital model thus created is applied to specific case-studies of resource-population conflict so as to overturn the simplistic conventional connection held between population growth and ecological devastation. The model highlights sequential causes of poverty arising from important capital-based factors which might otherwise be overlooked. It can accommodate a variety of Red-Green perspectives and its structural form is suited to the unravelling of complex population-resource pressures in the multi-dimensional space of the modern global political economy. (shrink)

Resumen: El tema del Otro aparece en la reflexión del filósofo mexicano Luis Villoro ligado de forma concreta a la alteridad indígena, es decir, al ser un “otro sujeto” y un “sujeto otro” del indígena mexicano, a su ser igual que nosotros y, sin embargo, diferente, distinto, en función de su propia perspectiva histórico-cultural. Enmarcamos esta exposición en la filosofía general de Villoro y en las problemáticas tanto teórico-filosóficas como prácticas y ético-políticas del mundo contemporáneo.: In the thought of the (...) Mexican philosopher Luis Villoro, the issue of the Other appears closely related to the indigenous alterity; that is, to the being “another subject” and a “different subject” of the Mexican indigenous people, to his being equal to us and, nonetheless, different, distinct, in function of his own historical-cultural perspective. We frame this exposition in the general philosophy of Villoro and in the theoretical-philosophical as well as the practical and ethical-political problems of the contemporary world. (shrink)

L’idea di una comunità politica fondata sulla giustizia rappresenta in Pla¬tone una doppia terapia: quella della malattia della città, che è conflittuale perché divisa in centri privati di interessi e di affetti, e dell’anima, scissa in centri motivazionali opposti che rendono difficile il comando della razionalità. La comunità politica non è un dato naturale o storico, ma un progetto, un costrutto artificiale, cioè il compito di una élite intellettuale . Ma questa comunità si realizza intanto nella pratica discorsiva e nella (...) decisione morale di quanti ne fanno il proprio orizzonte etico-politico.The idea of a political community founded on justice represents in Plato a therapy both for the illness of the city , and of the soul . The just political community is not for Plato a natural or historical fact, rather a project, an artificial construct, that is the task of an intellectual élite . But meanwhile such community exists in the dialogical practice and in the moral decision of those accepting it as their own ethical and political horizon. (shrink)

Qual o sentido da vida? Por que aqui estamos? Será destino? Será escolha? Neste livro, Mario Sergio Cortella e Leandro Karnal, dois dos maiores pensadores contemporâneos no Brasil, se encontram para refletir sobre essas questões que há séculos fascinam e intrigam a humanidade. A ciência, a filosofia, a religião e a arte têm oferecido algumas possibilidades de resposta que os autores discutem aqui. Afinal, pode ser aterrador imaginar que não há um destino, algo que explique a nossa existência. Por (...) outro lado, a ausência de sentido nos deixa livres para ser e viver conforme desejarmos - embora isso implique também responsabilidade. Mas somos mesmo livres? Seja escolha ou destino, seja a vida um drama que vamos tecendo ou uma tragédia anunciada, fato é que estamos sempre a procurar algum propósito que torne a existência mais significativa. Mas o que explica que algumas pessoas tenham mais sucesso do que outras no que fazem? Seria dom, vocação ou resultado de um esforço? Como os autores apontam, talvez a vida seja menos inspiração e mais transpiração. (shrink)

This essay focuses on the impossibility of considering food as ‘a thing.’ It addresses the legal profiles of food from an interdisciplinary perspective by treating the production, signification and consumption of food as semio-spatial categories. The argument starts from the foundational premise that the dynamics of food, as a magmatic flow, comprehensively connect and transform all human activities and ecological aspects of life. Like a stream of radial projections in a mass of fluid, food functions as a semiotic membrane, embodying (...) the fundamental relationality of each human body to the whole globe. The main implication subsequently drawn from this view of ‘food’ is that to eat is always and everywhere to incorporate the entire world. Since food is the epitome of the space and time proactively and enactively involved in its production, in terms of both human activities and natural resources, by the mere fact of eating no human being can avoid recognizing themselves as a space–time cannibal. The consequences of this conclusion for food justice and its spatial dynamics are enormous, and even more so in light of the current ecological crisis. The essay thus critiques many categories related to the food politics of the ecological footprint, including sustainability, bio-diversity, food systems, and the circularity of food and resources. One proposed alternative offered is a chorological reading of human rights and their possible use as semantic-spatial transducers of the activities and phenomena inherent in the ‘food-as-omnilateral-relationship.’ The dynamic and transformative relationship between space, human rights and ecological change emerges clearly. Human action, and thus law are, then, constitutive ‘ingredients’ of food, which comes to the fore as a ubiquitous icon of the interpenetrative relationship between humanity and the becoming of the Earth; being and becoming blur. In the same vein, spaces and actions, facts and values are transformed into moving elements of an overall evolving situation that makes each a means of the other and thereby a generative factor of its significance. (shrink)