A Revisão de Crenças estuda como agentes racionais mudam suas crenças ao receberem novas informações. O sistema AGM, trabalho mais influente desta área apresentado por Alchourrón, Gärdenfos e Makinson, postula critérios de racionalidade para os diferentes tipos de mudança de crenças e oferece construções explícitas para tais - a equivalência entre os postulados e operações é chamado de teroema da representação. Trabalhos recentes mostram como o paradigma AGM pode ser compatível com diferentes lógicas não-clássicas, o que é chamado de AGM-compatibilidade (...) - este é o caso da família de lógicas paraconsistentes que analisamos, as Lógicas da Inconsistência Formal (LFIs, da sigla em inglês). A despeito da AGM-compatibilidade, ao se partir de uma nova lógica sua racionalidade subjacente deve ser entendida e sua linguagem deve ser efetivamente usada. Propomos assim novas construções que de fato capturam a intuição presente na LFIs - é o que chamamos de sistema AGMo. Com isso, possibilitamos a estas lógicas uma nova interpretação, na esteira da epistemologia formal. Em uma abordagem alternativa, ao se partir da AGM-compatibilidade os resultados AGM podem ser diretamente aplicados às LFIs - o que chamamos de sistema AGMp. Em ambas abordagens, provamos os respectivos teoremas da representação sempre que necessário. (shrink)

Neste artigo fazemos uma discussão conceitual acerca da ferramenta de escolha por nós apresentada no trabalho “Solving Normative Conflicts using Preference Relations”, isto é, explicitamos a racionalidade subjacente a tal ferramenta, bem como as consequências práticas de sua aceitação.

In his Vermischte Bemerkungen 43, Wittgenstein notices that he was also influenced by Oswald Spengler. The paper deals with the question of in which way Spengler influenced Wittgenstein’s late works and if it really was influence or only a coincidence of ideas. It is put forward that Spengler’s rather unknown philosophy of language influenced Wittgenstein’s philosophy of language, especially the concepts of family resemblance, antiessentialism, and language-game (Sprachspiel). A picture of the famous Neapolitan gesture of “negation” which motivated Wittgenstein to (...) give up the picture theory of language is also shown with an example taken from Andrea de Jorio, La mimica degli antichi investigala nel gestire napoletano, Napoli 1832. (shrink)

Nosso objetivo neste trabalho é apresentar uma proposta de solução a paradoxos relacionados à lógica deôntica presentes na literatura, reunidos sob o que é chamado de dilemas deônticos - situações nas quais duas obrigações conflitantes estão presentes num mesmo sistema normativo. Situações deste tipo, quando formalizadas (em SDL - standard deontic logic - ou em outras lógicas relacionadas), levam a uma inconsistência. Nossa proposta baseia-se em relações de preferência que geram uma ferramenta de escolha dentre as duas soluções normativas conflitantes, (...) o que evita a inconsistência e permite o pleno cumprimento do sistema. Justificativas filosóficas são fornecidas as ferramentas lógicas, bem como as suas implicações. (shrink)

The paper puts forward that the basic principle of Wittgenstein’s Tractatus (4.0312) transforms the supreme principle of all synthetic judgments a priori in Kant’s Critique of Pure Reason (A158/B197) from a level of reason to the level of language. Both philosophers, Kant and Wittgenstein, put forward a transcendental principle and both hold a formal identity true, Kant an identity between the form of experience and the form of the object of experience, Wittgenstein an identity between the form of a sentence (...) and the form of a fact. (shrink)

The anthropology of consciousness is a field of enormous and demanding scope. In this article, there is no attempt to address all of the current trends in thinking and research; rather, the aim was to draw a line through the field that extends from the 19th century and European philosophies to some contemporary expressions of those philosophies in social science research. In particular, taking the original project of Edmund Husserl, an approach to the phenomenological investigation of the nature of consciousness (...) and, in addition, states of consciousness is proposed in the form of “existential grammars.” The treatment is propaedeutic: The ideas presented here are part of an on-going, long-term project tied to cross-cultural and experimental research on consciousness. However, the short-term outcomes are promising in elucidating the foundational questions not only about consciousness but also about specific areas of interest such as healing and the nature of scientific investigation itself. One important direction in this work is to illuminate, where possible, the pre-reflective rationalities of human experience, of consciousness itself, in such a way that we might generate codes of consciousness ultimately not as the equivalent of genetic models, but as descriptors of the core matrix of consciousness out of which alterations of consciousness might be better understood. (shrink)

Despite the fact that Aristotle and Frege/Russell differ in how to understand the ambiguity in the meaning of the word “is”, their theories share a common feature: “is” does not have a normative meaning. This paper, however, (I) shows (a) that there is a normative meaning of “is” (and correspondingly a constative meaning of the word “ought”) and (b) that the ambiguity of “is” is itself ambiguous. Furthermore, it proposes (c) a performative criterion for making a distinction between constative and (...) normative “is”. Thereby, (II) a new interpretation of Kant’s critique of the ontological argument (CPR A 598/B626) makes sense: The difference between being as a real predicate and being as a position depends on the difference between “is” as a descriptive and “is” as a normative predicate. (III) The criterion also makes possible a new answer to Leibniz’s and Schelling’s question, “Why is there something rather than nothing?”: The “is” in “there is something” is normative and the question means “Why shall there be something rather than nothing?”. As “there shall be nothing” is self-refuting, the question evokes an ultimate foundation in a practical sense. (shrink)

The paper deals with the beginning and the main properties of the science of nature (he peri physeos historiê). According to Themistius (DK 12 A 7), the founder of this kind of Ionic philosophy is Anaximander of Miletus because he was the first who wrote about nature (especially a cosmography and a cosmogony) and developed three main principles of nature: 1. Nature has a mathematical structure (Arist. De coelo I3 295b10-14.32); 2. nature has a physical structure (DK 12 A 10-11); (...) and 3. nature follows natural laws (DK 12 A 9). The origin of this introduction lies in the prolongation of primitive expectations of constancy. It is especially argued that the shift from mythos to logos is characterized by the depersonalization of nature and the introduction of theoretical terms. In fact, the "apeiron" of Anaximander seems to be something similar to a theoretical term, because Anaximander seems to have realized that the explanans of nature cannot be one of its explananda like water (Thales) or air (Anaximenes). (shrink)

Recent models of scientific collaboration show that minorities can end up at a disadvantage in bargaining scenarios. However, these models presuppose the existence of social categories. Here, we present a model of scientific collaboration in which inequality arises in the absence of social categories. We assume that all agents are identical except for the position that they occupy in the collaboration network. We show that inequality arises in the absence of social categories. We also show that this is due to (...) the structure of the collaboration network and that similar patterns arise in two real-world collaboration networks. (shrink)

This paper presents an interpretation of the paradoxical decision of Abraham done by Søren A. Kierkegaard in his work Fear and Trembling as an ethics of silence. The main idea is to understand ethics not as moral standards or specific duties, but as the responsibility of becoming a single individual in time; singularity as the intimate and personal relationship with the calling of love. In such a way, that silence is the experience of the encounter with the paradox that being (...) human means to be singular in conditions that claim an universal and general transparent manifestation dependent of the dominant rational discourse.Then, silence becomes the fundamental ethical claim to become a human person, as spirit in time, where it becomes a time of trial and examination, a temporality, where the trial is the fidelity to love’s calling, the listening of the possibilities that are presented by the anxiety of the decision. These possibilities are not immanent to the world or to history, they call for a personal choice, always containing a space of revelation; therefore of listening to the interiority of the personal choice that for Kierkegaard is the passion of faith, communicated and lived in silence. Concluding that an ethics of silence by the image of Abraham implies to re-think the role of philosophy in relationship to faith, hope and love in time, as a silent thought. (shrink)

This is a report on the II Symposium Platonicum, which took place in Perugia, Italy, September 1-6, 1989, and on the founding of the International Plato Society, which took place in Bevagna, Province of Perugia, Umbria, Italy, September 3, 1989.

Este artigo investiga alguns usos da metáfora da linguagem como cálculo em Wittgenstein. A metáfora do cálculo emerge, nos anos 30, numa interlocução com o referencialista, e é ali instrumental na recondução do olhar filosófico para os usos efetivos do simbolismo linguístico. Contudo, foi levada longe demais, ao sugerir uma imagem da linguagem composta apenas de inferências à maneira dos sistemas de regras fechados. Isto embargaria certa expansão pragmática do contexto criterial da análise conceitual. Mas a aplicabilidade do símile do (...) cálculo não é invalidada. A metáfora será reativada em manuscritos posteriores, sempre e quando puder servir aos mesmos propósitos do período intermediário, à medida que o ambiente dialógico convoque novas vozes dogmaticamente referencialistas. Ainda assim, é nos manuscritos intermediários que melhor se esclarece o seu funcionamento. Tal movimento exemplifica, por fim, um método filosófico que não procede por meio da superação de problemas à maneira científica. (shrink)

El fin de la filosofía. -- Sobre la situación presente del pensamiento. -- Hegel. -- Sobre Soren Kierkegaard. -- La estética de Georg Lukács. -- Georg Buchner. -- Tomás Mann. -- Ernst Junger. -- Lo grotesco literario. -- Borges, el hacedor.

The search for mechanisms has been a common practice in scientific research. However, since the empiricist critique of causality, and especially during the second third of the twentieth century, other non-mechanistic perspectives—especially deductivism—gained predominance. But the sustained effort of authors such as Michael Scriven, Mario Bunge and especially Wesley Salmon contributed to restoring the respectability of causality and mechanisms in philosophy of science. Some members of the causal family, usually lumped under the name of “new mechanistic philosophy”, emphasize the description (...) of mechanisms, especially causal ones, as a central aspect of explanation and other research practices in several areas of science. This approach offers viable solutions to the various ontological and methodological objections that are opposed to the two traditional approaches. In this work the basic characteristics of three philosophies that highlight the description of mechanisms as a central element to explanation and their suitability for the science of ecology are discussed. (shrink)

La historia de la Cirugía Pediátrica cubana está pendiente de ser documentada científicamente. Se estableció como objetivo definir las etapas de desarrollo de la especialidad en Cuba, para lo cual se hizo un análisis histórico y se identificó cuatro períodos fundamentales. Este artículo tiene una significación práctica puesto que permite conocer en qué momento se encuentra la especialidad para modelar el futuro de la misma. The history of Cuban pediatric surgery is pending of being scientifically documented. It was established as (...) an objective to define the stages of the development of the specialty in Cuba. For this purpose a historical analysis was carried out and four main periods were identified. This study has a practical importance because it allows knowing the stage in which the specialty is to model its future. (shrink)

Macroeconomic measures and objectives inform and structure political perception in large systems of governance. Herman Daly and John Cobb attack the objective and measure of economic growth in For the Common Good. However, their attack is paradoxical: 1) they are in favour of strong sustainability, but construct with the ISEW an index of weak sustainability, and 2) they describe humans as person-in- community, but propose an index based on personal consumption. While the ISEW has attracted much attention, the same cannot (...) be said about the person-in- community ontology developed at length and prominently in their work. This essay therefore aims to reconstruct Daly and Cobb's criticism of growth from the person-in- community approach. It defends the ISEW as a debunking index that is motivated by the person-in- community approach and the economy-ecology scale problem, and that also engages in the politics of scale. But this does not mean that the ISEW is also a measure of sustainable economic welfare. Critics expecting this kind of sustainability index are likely to see contradictions, but not the critical role the ISEW can play for democratic accountability. Understanding the latter makes it possible to see the ISEW as a step in the evolution of political perception and action. Accordingly the essay is also intended as a contribution to the understanding of this role in a situation where sustainability indices continue to be calculated, and renewed efforts at the measurement of welfare and happiness are made. (shrink)

This work will examine the main issues generated in the discussion about social justice, freedom and equality from a Marxist and egalitarian liberalism perspective, which would require an answer if the search for a good society continues. Since the world’s economic, social, political and cultural situation has changed in the last decades, nowadays the necessary ethic-political foundations for a fair and free social order must be discussed. The problem is to clarify, in the light of political philosophy and human sciences, (...) the proposals made about such social order and for the current moment, and from the socialist and egalitarian liberal theories with thinkers such as Marx, Cohen and Roemer, for the first, and Rawls, Dworkin Nagel and Sen, for the second, among others. The purpose of this work is mainly didactic and deals with a description of situations such as poverty, exclusion and social inequality that the world lives in. It also deals with the authors’ proposals about such topics, analyzing if there is incompatibility between the capitalist institutions and the socialist project for the achievement of these ideals/values that give origin to the title. (shrink)

This survey chapter discusses four issues in architectural aesthetics: architectural design, architectural style, the justification of “optical correction”, and the metaphysics of reconstruction.

The article is devoted to the study of philosophizing as questioning. It is substantiated that in terms of content, it is, firstly, an ideological questioning about the world and the place of human in it; secondly, conceptual questioning, which is realized in a developed philosophical theory; thirdly, metaphysical questioning, the purpose of which is the knowledge of being as such; fourth, transcending questioning, expanding and complicating the spheres of knowledge and practice; fifth, projective questioning aimed at creating and implementing possible (...) models of a person; sixth, personal questioning, which forms the consciousness of a particular individual. Various types of philosophizing in ancient, medieval, modern European and modern thought are analyzed. It is emphasized that the definition of the main issue of philosophy as the question of the relationship of thinking to being, spirit to nature makes sense only within the framework of classical thought. In post-non-classical philosophy, interrogation is carried out within disparate semantic "clusters", through which it is impossible to comprehend the being as such, to cognize the world whole. (shrink)

Las estructuras fundamentales del pensamiento lógico humano guardan una estrecha relación con determinadas regiones neurológicas del cerebro y de otras partes del encéfalo humano (e incluso animal, según algunas investigaciones). El presente artículo trata de explorar la posibilidad de atribuir el procesamiento de determinadas estructuras lógico-lingüísticas de la actividad cognoscitiva humana, partiendo de ciertos datos empíricos y argumentaciones teóricas provenientes de distintos campos científicos y filosóficos. Partiendo de la base de la analogía establecida entre partículas lingüísticas y lógicas, así como (...) entre pensamiento y lenguaje, además de los resultados hallados en la investigación acerca de los trastornos del lenguaje por lesión cerebral (afasias) se proponen unas hipótesis de localización de las estructuras lógicas fundamentales (clases vs. functores) en determinados circuitos neurológicos presentes en el encéfalo humano, así como en otras áreas relacionadas con las funciones lingüísticas, ejecutivas y sensorio-motrices, fundamentalmente. (shrink)

En este trabajo se destaca el papel de la accesibilidad en el discurso de los derechos humanos. Para ello se expone su significado general tomando como referencia el diseño universal, en sus tres sentidos, y los ajustes razonables. El trabajo describe las diferentes construcciones jurídicas de la accesibilidad y sus límites.

El fin de la ciencia es lograr un conocimiento de la realidad para la transformación adecuada del hombre y su ambiente. Las investigaciones clínicas están encaminadas a utilizar a los seres humanos o a sus derivados como parte del conocimiento para prevenir, diagnosticar o tratar enfermedades. Todos los estudios realizados en personas deben tomar en cuenta su dignidad en la concepción misma de los proyectos, por lo que es fundamental que se respeten sus derechos humanos. La bioética, al ser una (...) disciplina que se establece como protectora de las personas y su medio ambiente, debe salvaguardar la dignidad de los participantes. (shrink)

El presente trabajo expone las similitudes �o coincidencias� entre las obras filosóficas de Paul Ricoeur y Ludwig Wittgenstein. Se establece un marco de comparación entre las categorías memoria-habito y memoria-recuerdo (cuya oposición analiza Ricoeur desde una fenomenología de la memoria en su obra La Memoria, la historia, el olvido) y las categorías ver y ver aspectos (cuya oposición analiza Wittgenstein desde una filosofía del lenguaje en su obra Observaciones sobre la filosofía de la psicología). De estos pares de oposiciones se (...) extraen puntos de comparación que permiten entender la funcionalidad del trabajo historiográfico. (shrink)