We present a mathematical approach to defeasible reasoning based on arguments. This approach integrates the notion of specificity introduced by Poole and the theory of warrant presented by Pollock. The main contribution of this paper is a precise, well-defined system which exhibits correct behavior when applied to the benchmark examples in the literature. It aims for usability rather than novelty. We prove that an order relation can be introduced among equivalence classes of arguments under the equi-specificity relation. We also prove (...) a theorem that ensures the termination of the process of finding the justified facts. Two more lemmas define a reduced search space for checking specificity. In order to implement the theoretical ideas, the language is restricted to Horn clauses for the evidential context. The language used to represent defeasible rules has been restricted in a similar way. The authors intend this work to unify the various existing approaches to argument-based defeasible reasoning. (shrink)

We analyse team dictator games with different voting mechanisms in the laboratory. Individuals vote to select a donation for all group members. Standard Bayesian analysis makes the same prediction for all three mechanisms: participants should cast the same vote regardless of the voting mechanism used to determine the common donation level. Our experimental results show that subjects fail to choose the same vote. We show that their behaviour is consistent with a joy of ruling: individuals get an extra utility when (...) they determine the voting outcome. (shrink)

The current literature on nanoethics focuses on a wide array of topics such as equity, privacy, military, environment, human enhancement, intellectual property, and security. The identification of those topics leads to the adoption of an ethical stance, which we call the in itself dimension . In this article we argue that even though it is correct to identify the areas where ethical problems are imperative to deal with ( in itself dimension ), it is a partial approach. This is because (...) the in itself dimension pays no attention to another ethical stance; one that does not have anything to do with individual or collective responsibilities, but rather with the socio-economic system into which those responsibilities are embedded. We call this second issue the contextual dimension. (shrink)

Bi-intuitionistic logic is the result of adding the dual of intuitionistic implication to intuitionistic logic. In this note, we characterize the expressive power of this logic by showing that the first order formulas equivalent to translations of bi-intuitionistic propositional formulas are exactly those preserved under bi-intuitionistic directed bisimulations. The proof technique is originally due to Lindstrom and, in contrast to the most common proofs of this kind of result, it does not use the machinery of neither saturated models nor elementary (...) chains. (shrink)

Este trabajo pretende preguntarse si, a pesar del “silencio” de Heidegger ante la teoría de los géneros poéticos de Hölderlin, no es esta misma teoría, y especialmente el poema lírico que caracteriza a la modernidad, la cuestión en la cual se apoya Heidegger para fundamentar su “historia del ser”, de modo que la noción fuerte de _historia _que se maneja en su obra y finalmente el término marcado _das Ereignis _estaría en sintonía con los “trayectos poéticos” que Hölderlin teoriza.

The meaning that expressions take on particular occasions often depends on the context in ways which seem to transcend its direct effect on context-sensitive parameters. ‘Truth-conditional pragmatics’ is the project of trying to model such semantic flexibility within a compositional truth-conditional framework. Most proposals proceed by radically ‘freeing up’ the compositional operations of language. I argue, however, that the resulting theories are too unconstrained, and predict flexibility in cases where it is not observed. These accounts fall into this position because (...) they rarely, if ever, take advantage of the rich information made available by lexical items. I hold, instead, that lexical items encode both extension and non-extension determining information. Under certain conditions, the non-extension determining information of an expression e can enter into the compositional processes that determine the meaning of more complex expressions which contain e. This paper presents and motivates a set of type-driven compositional operations that can access non-extension determining information and introduce bits of it into the meaning of complex expressions. The resulting multidimensional semantics has the tools to deal with key cases of semantic flexibility in appropriately constrained ways, making it a promising framework to pursue the project of truth-conditional pragmatics. (shrink)

Recent work in formal semantics suggests that the language system includes not only a structure building device, as standardly assumed, but also a natural deductive system which can determine when expressions have trivial truth-conditions (e.g., are logically true/false) and mark them as unacceptable. This hypothesis, called the `logicality of language', accounts for many acceptability patterns, including systematic restrictions on the distribution of quantifiers. To deal with apparent counter-examples consisting of acceptable tautologies and contradictions, the logicality of language is often paired (...) with an additional assumption according to which logical forms are radically underspecified: i.e., the language system can see functional terms but is `blind' to open class terms to the extent that different tokens of the same term are treated as if independent. This conception of logical form has profound implications: it suggests an extreme version of the modularity of language, and can only be paired with non-classical---indeed quite exotic---kinds of deductive systems. The aim of this paper is to show that we can pair the logicality of language with a different and ultimately more traditional account of logical form. This framework accounts for the basic acceptability patterns which motivated the logicality of language, can explain why some tautologies and contradictions are acceptable, and makes better predictions in key cases. As a result, we can pursue versions of the logicality of language in frameworks compatible with the view that the language system is not radically modular vis-a-vis its open class terms and employs a deductive system that is basically classical. (shrink)

Over the past decade or so, a new interdisciplinary field has emerged in the ground between, on the one hand, computer science – and artificial intelligence in particular – and, on the other, the area of philosophy concentrating on the language and structure of argument. There are now hundreds of researchers worldwide who would consider themselves a part of this nascent community. Various terms have been proposed for the area, including "Computational Dialectics," "Argumentation Technology," and "Argument-based Computing," but the term (...) that has stuck is simply Argument & Computation. It encompasses several specific strands of research, such as: . the use of theories of argument, and dialectic in particular, in the design and implementation of protocols for multi-agent action and communication; . the application of theories of argument and rhetoric in natural language processing and affective computing; . the use of argument-based structures for autonomous reasoning in artificial intelligence, and in particular, for defeasible reasoning; . computer-supported collaborative argumentation – the implementation of software tools for enabling online argument in domains such as education and e-government. These strands come together to form the core of a research field that covers parts of artificial intelligence (AI), philosophy, linguistics, and cognitive science, but, increasingly, is building an identity of its own. (shrink)

This chapter contains sections titled: The Origins of the Ateneo de la Juventud The Lectures at the Ateneo de la Juventud The Ateneo de la Juventud and the Mexican Revolution References Further Reading.

La sexualidad humana es uno de los grandes temas en consideración en nuestra sociedad actual. Tanto en el campo de las neurociencias como en el de la filosofía y las ciencias sociales se han realizado diversos estudios que intentan esclarecer el significado de la especificidad sexual humana (femenina o masculina). Sin embargo, estos enfrentan múltiples obstáculos al tratar acerca de las últimas causas del fenómeno de la sexualidad. Atendiendo a las contribuciones del filósofo argentino Juan José Sanguineti, se ofrece una (...) aproximación filosófica que busca ser holística a partir de una perspectiva realista y en diálogo con los aportes neurocientíficos. De este modo, se brinda un tratamiento filosófico de las dimensiones de la persona humana, desde su base biológica hasta su vida espiritual. (shrink)

Este artículo estudia algunos problemas relativos a la doctrina de la temporalidad de Spinoza, centrando el análisis en los Principios de filosofía de Descartes, los Pensamientos metafísicos y la “Carta sobre el infinito”, todas de 1663. Con ello esperamos mostrar que la exposición spinoziana de los conceptos de tiempo y duración en la obra de 1663, si bien sigue la conceptualización cartesiana, opera sobre ésta una crítica implícita (inmanente podríamos decir) que lleva al pensamiento spinoziano hacia sus propios horizontes conceptuales, (...) que serán explícitamente definidos en la carta 12. De esta manera, asimismo, este trabajo busca contribuir al estudio del estatuto de la obra de 1663 y del significado de la doctrina de la temporalidad de Spinoza en este período formativo de su pensamiento. (shrink)

El artículo se propone presentar algunos elementos de la doctrina spinoziana de la idea adecuada y del orden de filosofar en el temprano Tratado de la reforma del entendimiento. Se intentará mostrar que la segunda parte del método de Spinoza consiste, por un lado, en explicar los “medios” disponibles para asegurar la verdad (definición genética), y, por el otro, en concatenar y ordenar las ideas de suerte que la mente pueda reproducir (total o parcialmente) la formalidad de la Naturaleza. A (...) través de ello afirmaremos que esta segunda parte del método, aunque inconclusa, tiene la virtud de presentar dos cuestiones muy importantes para la comprensión de la futura ontología de la Ética: por un lado, la doctrina de la definición genética, centro del more geométrico spinoziano; y por el otro, la reflexión en torno al “orden” en que existen las cosas singulares y a la naturaleza de su deducción. (shrink)

El artículo se centra en analizar la propuesta filosófica del italiano Giorgio Agamben y el modo en que en ella se introduce al pensador alemán Carl Schmitt. Sobre Agamben se evalúa cómo el recurso a la teoría de la excepcionalidad schmittiana, es invertido para favorecer una teoría política impersonal, expresada en una soberanía omnipresente y una resistencia altamente pesimista. Se plantea una crítica a los planteamientos de Agamben, argumentada en la necesidad de dar continuidad a la teoría decisionista de Schmitt. (...) El artículo sostiene que Agamben se basó en la faceta teológico-política de Schmitt y prestó poca atención al Schmitt que relaciona el Estado de excepción con la vida pública, lo movimientos y el antagonismo político de la realpolitik. (shrink)

The classification of ageing as a disease is fundamental to developing new pharmacological strategies that can target said phenomenon. The European Medicines Agency does not do this and maintains a questionable perspective based on the traditional naturalistic argument and the value-free ideal. An alternative is proposed which, inspired by consequentialism, is committed to considering ageing as a disease in European regulatory contexts as long as the ethical consequences are desirable. Within a realistic framework, I show that making this decision would (...) have moderate positive effects such as increased knowledge about antiageing pharmacology or potential greater chances of completing vital projects. Furthermore, we will see that the main arguments used by critics to show that the negative effects outweigh the positive ones are not sound. Therefore, I conclude that it would be beneficial for the European Medicines Agency to change its position on ageing. (shrink)

The goal of this study was to introduce a model explaining how managers' attitudes, subjective norms, attributions, and the individualism-collectivism cultural dimension affect the way managers' deal with employee bribery in organizations. Twenty-six internal and external attributions related to bribery were identified through a series of structured interviews with 65 subject matter experts. These attributions, together with the other variables in the model, were evaluated by 354 Ecuadorian managers. Hierarchical regression analyses indicated that attitudes and external attributions significantly predicted managers' (...) intentions to discipline employees who accepted a bribe. In addition, external attributions mediated the relationship between individualism-collectivism and intent to discipline corrupt employees. Implications for the management of bribery in Latin American organizations are discussed. (shrink)

Under a proper translation, the languages of propositional (and quantified relevant logic) with an absurdity constant are characterized as the fragments of first order logic preserved under (world-object) relevant directed bisimulations. Furthermore, the properties of pointed models axiomatizable by sets of propositional relevant formulas have a purely algebraic characterization. Finally, a form of the interpolation property holds for the relevant fragment of first order logic.

La discusión sobre pureza del método suele enfatizar el estudio de demostraciones particulares de la práctica matemática. Una crítica a esta posición cuestiona el valor de la pureza al afirmar que el “progreso matemático” depende esencialmente del empleo de métodos impuros. Este artículo muestra que una perspectiva más holística, centrada en cómo las demandas de pureza pueden operar en la construcción de teorías autónomas, permite identificar un contexto donde la pureza del método adquiere valor en la práctica matemática. En particular, (...) se muestra la relevancia de tales demandas en el caso de las teorías algebraicas de números de Kronecker y Dedekind. (shrink)

Dentro de la filosofía de la práctica matemática, la cuestión de la pureza del método ha ido ganando un lugar en las agendas de investigación y publicaciones. Usualmente se asume que “pura” es un predicado de soluciones o demostraciones, el cual resulta satisfecho cuando estas son intrínsecas a los problemas o teoremas. En este artículo motivo la adopción de una concepción más hospitalaria, de acuerdo con la cual la pureza del método emerge con naturalidad en la práctica de construir teorías (...) matemáticas autónomas, y muestro cómo a partir de esta la concepción usual se ve enriquecida. (shrink)

Guillermo E. Rosado Haddock, ed. Husserl and Analytic Philosophy. Berlin/Boston: Walter de Gruyter GmbH, 2016. ISBN 978-3-11-049655-0 ; 978-3-11-049737-3 ; 978-3-11-049418-1. Pp. viii + 338.

En el presente trabajo examinaremos la relevancia de la categoría de decisión en el surgimiento del pensamiento impolítico contemporáneo en Italia. Con este objetivo, buscaremos elaborar una exégesis del rol de dicha noción en los desarrollos de Massimo Cacciari de finales de la década de 1970. Nuestro punto de partida se encontrará en su lectura nietzscheana sobre el diagnóstico de crisis de las categorías metafísicas y políticas tradicionales. Tal interpretación nos conducirá a estudiar su análisis de la soberanía desde una (...) “concepción criatural” del orden político. En este sentido, sostendremos que la crítica que Cacciari realiza al concepto de decisión no sólo vertebra desde sus inicios al horizonte impolítico, sino que también nos permite comprender los alcances filosóficos de su perspectiva. (shrink)

Ofrezco una relectura del libro Creer, saber y conocer de Luis Villoro en la que destaco sus tesis principales, lo relaciono con el resto de la obra de su autor y lo ubico en la historia de la filosofía mexicana y global.

El problema mente/cuerpo se encuentra en los fundamentos de toda teoría acerca de la mente, sus operaciones y sus dinamismos. En nuestra era, esta temática se enfrenta a múltiples obstáculos ontológicos y epistemológicos. Una perspectiva holística de la antropología es presentada a partir de los aportes del filósofo argentino Juan José Sanguineti y su noción de cuerpo intencional. Este concepto, desarrollado en el marco del pensamiento fenomenológico, es una herramienta ontológicamente fundada, capaz de promover la interacción entre filosofía de la (...) mente, fenomenología y ontología. Asimismo, posibilita nuevos tratamientos que vinculen las perspectivas de primera y tercera persona en la investigación antropológica en torno a la mente y el cuerpo. (shrink)

The field of Philosophy and Education seems to be experiencing a renewed interest in the work of Aristotle. As recently reviewed by Curren (Oxf Rev Educ 36(5):543–559, 2010), most of this attention aligns with the virtue ethics movement where themes like moral development in education, and the inquiry on human flourishing as the aim of education are prevalent. For sources, this scholarship relies heavily and extensively on the Nicomachean Ethics and Politics’ Book VIII where Aristotle develops his single, clearly defined (...) account of education. Among the short list of scholars who include Poetics in their research, their work seems to return to issues of morality and education (Carr in J Aesthet Educ 44(3):1–15, 2010; Gupta in J Aesthet Educ 44(4):60–80, 2010). This paper is an attempt to rediscover Aristotle’s insights on the peculiar type of learning that the arts seem to favor. In order to carry on this investigation, I will first guide my argument towards Aristotle’s remarks on poiesis. Then, I will focus on what constitutes the heart of poiesis, that is, mimesis. I will pay special attention to Aristotle’s consideration of both poiesis and mimesis as ultimately dealing with what he calls “possibility.” I will argue that learning in the arts entails the coming together of these three qualities. This would be a way of learning characterized by seeing human likenesses emerge as such in our interactions with artworks. (shrink)