Logic and philosophy of logic have increasingly become areas of research and great interest in Latin America and Spain, where significant work has been done and continues to be done in both of these fields. The goal of this volume is to draw attention to this work through a collection of original and unpublished papers by specialists from Latin America and Spain. Some of the papers are of importance for set-theory and model theory. They cover topics such as the foundations (...) of paraconsistency, the use of paraconsistent logic as a basis for set-theory, and the methodological aspects in both the justification of new axioms in set theory and the formalization of pre-theoretic notions. Other papers are related to epistemic logic. They deal with the issues of abduction and the choice of the simplest hypothesis, the definition of group probability, and the nature of explanation and understanding in such logic. There are also papers on logical paradoxes, the semantics of names, and the nature of relations. Max A. Freund is Professor of Logic and Philosophy at the University of Costa Rica and the National University of Costa Rica. He is co-author of the book Modal Logic its syntax and semantics, as well as the author of Judicial Logic, and of a forthcoming book The Logic of Sortals. Max Fernandez de Castro is Professor of Logic and Philosophy at the Autonomous Metropolitan University of Mexico. He is the author of the book Quine y la Ontologíaa and co-author of the books Lógica Matemática I: lógica proposicional, intuicionista y modal, Lógica Matemática II: clásica, intuicionista y modal, Teoría de Conjuntos, Lógica y Temas Afines I. Marco Ruffino is Professor of Philosophy at the University of Campinas and the editor of Manuscrito, the Brazilian international journal for Analytic Philosophy. He has many publications, in important philosophical journals, in the philosophy of language, of logic, and of mathematics; in the history of analytic philosophy, and on Frege and Wittgenstein. (shrink)

En este artículo me gustaría concentrarme en al forma de tratar el problema de Benacerraf respecto de la inaccesibilidad de los objetos abstractos. Este es el principio (llamado FBP por Balaguer) que caracteriza a los objetos por axiomas de una teoría de la existencia consistente. Analizo los argume..

Resumen Este artículo analiza si en la teoría de los cuatro ethe de la modernidad capitalista, desarrollada por Bolívar Echeverría, no está contenida una debilidad de principio. Se trata de saber si para arribar a sus más altas aportaciones, esta teoría no termina pagando un precio que debiera dar que pensar. ¿Acaso renuncia a la crítica de la ideología, por lo menos en la radicalidad realizada por los autores de la Teoría crítica, inspirados en este punto originalmente por Georg Lukács?This (...) article is analyzing if in the theory of the four ethe of capitalist modernity, developed by Bolívar Echeverría, isn’t included a basic weakness. It is about understanding if for to arrive to its highest contributions, this theory is not paying a too high prize. Does it possibly renounce to the critique of ideology, at least in the radicality fulfilled by the authors of Critical theory, inspired in this point originally by Georg Lukács? (shrink)

Resumen Como es muy conocido, Frege afirmó que la expresión ‘el concepto caballo’ se refiere a un objeto y no a un concepto. En este artículo, en primer lugar, mostramos cómo hay algunos barruntos de esta paradoja en textos anteriores a 1891. En segundo lugar, revisamos algunos argumentos que defienden que con el término ‘el concepto caballo’ Frege se refería a la extensión del mencionado concepto. Por último, sostendremos que, aun cuando el concepto caballo sea dicha extensión, es muy poco (...) lo que sabemos de su naturaleza. Esto último se debe a la forma fragmentaria en que Frege introduce las extensiones de concepto en los Grundgesetze y en ensayos previos.As is well known, Frege stated that the expression ‘the concept horse’ refers to an object and not to a concept. In this article we firstly show how there are some hints of this paradox in texts prior to 1891. Secondly we review some arguments given in the literature to hold that with ‘the concept horse’ Frege referred to the extension of the mentioned concept. Finally, we argue that, even if the concept horse is such an extension, we still know very little about its nature, given the fragmentary way in which Frege introduces the extensions of concepts in Grundgesetze and in previous essays. (shrink)

Logic and philosophy of logic have increasingly become areas of research and great interest in Latin America and Spain, where significant work has been done and continues to be done in both of these fields. The goal of this volume is to draw attention to this work through a collection of original and unpublished papers by specialists from Latin America and Spain. Some of the papers are of importance for set-theory and model theory. They cover topics such as the foundations (...) of paraconsistency, the use of paraconsistent logic as a basis for set-theory, and the methodological aspects in both the justification of new axioms in set theory and the formalization of pre-theoretic notions. Other papers are related to epistemic logic. They deal with the issues of abduction and the choice of the simplest hypothesis, the definition of group probability, and the nature of explanation and understanding in such logic. There are also papers on logical paradoxes, the semantics of names (including fictional names), and the nature of relations. (shrink)

In this paper we present a new hierarchy of analytical tableaux systems TNDC n, 1≤n (...) and also prove that these systems are logically equivalent to the corresponding systems Cn, 1≤nshrink)

RESUMEN: La dificultad de elaborar políticas públicas capaces de integrar una estrategia de acción dirigida a la participación política y el ejercicio de una ciudadanía activa por parte de las mujeres obliga a recapacitar sobre modelos de actuación cuyo objetivo contemple al mismo tiempo la dimensión colectiva y la individual del empoderamiento político, como clave estratégica para el diseño de políticas de igualdad de género que pretendan tal finalidad. El presente trabajo ofrece una propuesta de medidas para las políticas de (...) igualdad que, combinadas unas con otras atendiendo a la situación actual del panorama político, responden a una estrategia de acción integral para el empoderamiento político de las mujeres.ABSTRACT: The difficulty of developing public policies capable of integrating an action strategy aimed at political participation and the exercise of active citizenship by women forced to rethink models of action aimed at the same time contemplating collective and individual dimension of political empowerment as a strategic key to the design of gender equality policies that seek this purpose. This work presents a proposal of measures for equality policies, combined with each other in response to the current situation of the Spanish panorama, reflect a comprehensive action strategy for the political empowerment of women.PALABRAS CLAVE: empoderamiento; políticas; ciudadanía; participación; igualdad. KEYWORDS: empowerment; policies; citizenship; participation; equality. (shrink)

El pasaje de la Elegía de Gray (PEG) en “On Denoting” es extremadamente obscuro y ha sido objeto de muy diversas interpretaciones. Aparentemente contiene una crítica devastadora contra la teoría de los conceptos denotativos que el propio Russell había postulado en The Principles of Mathematics (PM) (1903). En este artículo exponemos sucintamente dicha teoría semántica, examinamos detalladamente el pasaje en cuestión y exploramos algunas de las interpretaciones que pretenden desentrañar su sentido. Con ello mostramos, en primer lugar, que la crítica (...) se dirige directamente contra la teoría de PM; en segundo lugar, que no es posible hacer unos pocos cambios homogéneos para habilitar una lectura literal del pasaje; finalmente, que, si bien algunos de los argumentos que los intérpretes han aducido para abandonar la teoría de los conceptos denotativos son sólidos, no es obvio que todos ellos se encuentren en PEG. (shrink)

The aim of this paper is to show the impact of Russell’s paradox in Frege’s mathemathical and philosophical system. First, it shows that the development of the Begriffsschrift was enough to give a structural definition of natural numbers, but not enough to accomplish Frege’s program. For this it w..

The objective of this work is to set out three semantic methods for the analysis of ordinary discourse. These methods arose historically as a solution to certain problems such as those presented by Russell in “On denoting” and which, according to him, all semantic theory should be able to.solve...

El objetivo del presente artículo es someter a escrutinio la afirmación de Hintikka según la cual la verdadera lógica elemental no es la clásica sino la lógica IF y, en consecuencia, el marco en que ordinariamente son pensadas las relaciones entre lógica y matemáticas es por completo inadecuado. Pa..

ObjectiveThis study aimed to analyze the influence and measurement of the relationship and interaction between the elderly lifestyles after the appearance of the SARS-CoV-2 variant and the factors analyzed comprised life satisfaction levels, social relationships, and daily-life activities.MethodsThe study population was ≥ 65 in Castile-La Mancha. The research design was quantitative and arose from primary data collected via an ad hoc survey carried out through the Computer Assisted Telephone Interview system by randomly stratified sampling. The sample size was made up (...) of 1,065 cases, and the participants were selected through a random sampling stratified by gender quotas, age, province, and habitat size.ResultsThe results obtained revealed two main lifestyles, from which a notable behavioral change in personal relationships led to infer toward alternative lifestyles.ConclusionNotwithstanding the variation in lifestyles of the elderly after the pandemic, certain relationships remained unaltered. Thus, from the analyzed variables, relatives and friends relationships were scarcely influenced by the supervened incident. (shrink)

Se presentan los resultados de un estudio cuyo objetivo general fue identificar y caracterizar el patron estructural de las prácticas pedagógicas recurrentes en los departamentos de educación de espacios patrimoniales musealizados de la Región Metropolitana de Chile, ejemplo de país con perfil identitario pluricultural. La muestra parte de los 87 museos y organizaciones del Registro Nacional de Museos del gobierno (RMC). Se utilizó un diseño exploratorio secuencial (cuan – CUAL) que incorpora análisis estadísticos descriptivos, fases, criterios e instrumentos del método (...) OEPE. Permitió acotar la muestra a 16 y trasladar sus líneas a la base de datos OEPE. Seguido a esto (fase CUAL), la muestra se sometió a los indicadores de la escala validada Q-Edutage. Finalmente, se realizaron análisis descriptivos para los 5 departamentos educativos cuartil 1. La óptica se sitúa en la correlación de ámbitos y agentes educativos como fenómeno. Los nodos estructurales fueron metodología, tipologías de diseño, estrategias pedagógicas, recursos y cauces de participación e interacción comunicativa en entornos virtuales. De la estructura se infieren los cuatro principios del fenómeno, los cuales se ocupan de (1) la capacitación profesional, (2) los artefactos facilitadores, (3) la tecnología aplicada y (4) los mecanismos favorecedores de la interacción. (shrink)

Rationale, aims and objectives Given the increasing prevalence of cataract and demand for cataract extraction surgery, patients must often wait to undergo this procedure. We validated a previously developed priority scoring system in terms of clinical variables, pre-intervention health status, appropriateness of surgery and gain in visual acuity (VA) and health-related quality of life (HRQoL).Methods Explicit prioritization criteria for cataract extraction created by a variation of the Research and Development (RAND) and University of California Los Angeles appropriateness methodology were retrospectively (...) applied to a prospective cohort of 5257 patients on waiting lists to undergo cataract by phacoemulsification at 17 hospitals in Spain. Demographic data, clinical data and data related to surgical technique were collected by trained ophthalmologists. Patients were evaluated by their ophthalmologist before the intervention and 6 weeks afterward. They also completed, by mail, the Visual Function Index (VF-14) before the intervention and 3 months afterward.Results High-priority patients experienced greater improvement in VA and HRQoL than those classified as intermediate or low-priority (P < 0.0001), even after adjusting by VA and the VF-14 score at baseline. The time to intervention was the same for high-priority patients as it was for intermediate and low-priority patients.Conclusions The priority score we developed identified patients most likely to experience the greatest improvements from cataract extraction. Use of this tool could provide a fairer and more rational way to prioritize patients for cataract extraction. (shrink)

Este artigo visa analisar modos de axiologizar o bem-estar na escola em enunciados produzidos por alunos do 9º ano do ensino fundamental de uma escola municipal do interior baiano. Interessa-nos, especialmente, compreender como os sujeitos semiotizam, em seus enunciados, o que consideram o evento mais marcante de suas experiências ao longo dos anos finais do ensino fundamental e o que isso nos informa sobre os valores ali mobilizados relativos ao papel social e institucional da escola e(m) suas modalidades de convivência (...) intersubjetiva. As análises destacam que as memórias verbo-visualmente materializadas não se limitam a registros, abrigados na consciência, mas são repositórios de experiências afetivas de e em diversos cronotopos. O fato de as memórias apresentadas recobrirem diferentes eventos interacionais oferecem-nos uma visão crítica dos estudantes de como percebem e matizam complexidades das interações por eles rememoradas e enunciadas. Trabalhos, como o nosso, que se interessam pelos afetamentos de alunos, contribuem, localmente, para que o contexto escolar seja (re)(des)coberto, tensionando como percepções sociais são semiotizadas em horizontes apreciativos de experiências. (shrink)

Taking for granted that Marx’s economic theory enjoys a scientific status and, furthermore, that it installed a real Copernican revolution in sociology, the present paper explores the possibility of deriving a system of law deserving the name of “scientific” in so far as it would be in keeping with the theses of the latter scientific theory. In this context, the paper argues against a claim recently sustained by Fernández Liria and Alegre Zahonero, for whom a system of right compatible with (...) Marx’s theory would be compatible, too, with the classic juridical formulations conceived during the Enlightenment. The main reason why this paper testifies against such compatibility is that the enlightened concepts of “equality”, “liberty” and “autonomy” count with the individual as the realm for their juridical application. However, Marx’s subject matter being the social means of production (and not the individuals’ production of value), we conclude that the only juridical subject that could justifiably be derived from his economic investigation would be the “social class”. Finally, the paper suggests that the only way a scientific system of law could grant a juridical status to the individual would be by taking into account the other theory that also installed a Copernican revolution in the social sciences, though this time in the field of psychology: Freud’s psychoanalysis. Key words: Copernican revolution, science, scientific. (shrink)

In this paper we present a new hierarchy of analytical tableaux systems TNDC n, 1≤n<ω, for da Costa's hierarchy of propositional paraconsistent logics Cn, 1≤n<ω. In our tableaux formulation, we introduce da Costa's “ball” operator “o”, the generalized operators “k” and “(k)”, for 1≤k, and the negations “~k”, for k≥1, as primitive operators, differently to what has been done in the literature, where these operators are usually defined operators. We prove a version of Cut Rule for the TNDC n, 1≤n<ω, (...) and also prove that these systems are logically equivalent to the corresponding systems Cn, 1≤n<ω. The systems TNDC n constitute completely automated theorem proving systems for the systems of da Costa's hierarchy Cn, 1≤n<ω. (shrink)

La vida y obra del polígrafo granadino Lisān al-Dīn Ibn al-Ḫaṭīb (m. 776/1374) sigue siendo fuente de importantes estudios y traducciones habida cuenta de que su prolija producción literaria está repleta de valiosos testimonios históricos y personales que sitúan a su autor como un personaje destacado en la transmisión del conocimiento en el Mediterráneo islámico. En la difusión de su obra y prestigio jugó un papel fundamental la copia manuscrita de su obra al-Iḥāṭa fī aḫbār Ġarnāṭa que Ibn al-Ḫaṭīb envió (...) en vida (768/1366), a través de su hijo ʿAlī, a la ḫānqāh de Saʿīd al-suʿadāʾ de El Cairo, regida por el tremeceno Ibn Abī Ḥaǧala (m. 776/1375). El conocimiento de esta copia ha llegado hasta nosotros a través de otro tremeceno, al-Maqqarī (m. 1041/1632) y su monumental obra, Nafḥ al-ṭīb, en honor al sabio granadino. Gracias a ella sabemos, entre otras cosas, que esta copia fue profusamente consultada y comentada en sus márgenes. Dos autores destacan por encima de los demás: el hijo del autor Abū l-Ḥasan ʿAlī (m. s. IX/XV), y el magrebí Ibn Marzūq (m. 781/1379). A través del estudio y la traducción de las notas manuscritas de este manuscrito cairota, este estudio pretende poner de relieve el valor de los marginalia como fuente documental, así como arrojar un poco más de luz sobre estas dos figuras, junto con al-Maqqarī, como piezas importantes en la transmisión y pervivencia de la obra de Ibn al-Ḫaṭīb en el Oriente islámico hasta al menos el siglo XI/XVII. (shrink)

Cybersecurity aggregates are numerical data obtained by aggregation on features along a database of cybersecurity reports. These aggregates are obtained by integration of time-stamped tables using some recent results of non-standard calculus. Time-series of aggregates are shown to contain relevant information about the concrete system dealt with. Trend time series is also forecasted using known data-driven methods. Although absolute forecasting of trend time series is not obtained, a directional forecasting of trend time series is achieved thence validated by means of (...) a rolling cross validation scheme on a public database of Scareware reports. (shrink)

Este artigo visa analisar indícios verbo-visuais de episódios de mal-estar enunciados por alunos que integram turmas da modalidade Educação de Jovens Adultos (EJA) em uma escola do interior baiano. Dedicamo-nos, especialmente, a compreender como os sujeitos semiotizam situações de embaraço social vivenciadas em salas de aula e(m) seus (d)efeitos. Como referencial teórico, partimos de pressupostos da Análise Dialógica do Discurso, da Clínica da Atividade e de outras categorias discursivas para lermos, a partir de uma dimensão axiológica, o corpus que é (...) composto por duas biograficzines. A análise dos dados registra que os (res)sentimentos dos discentes, que se deixam materializar em termos verbo-visuais, deflagram situações que ilustram a complexidade de dinâmicas que perfazem interações didáticas no ambiente escolar. Trabalhos como o nosso contribuem para tensionar a realidade escolar-profissional possibilitando a exploração de outros ângulos de nossas atividades como sujeitos sociais. (shrink)

"Contra la postmodernidad" entabla una polémica con las principales contribuciones políticas, sociológicas y filosóficas de los últimos tiempos. Comparecen ante el tribunal pensadores como Zygmunt Bauman, Anthony Giddens, Agnes Héller, Toni Negri, Simon Critchley, Gianni Vattimo, Eloy Fernández Porta y Jean-François Lyotard, entre otros. Se discuten las falacias de la economía neoclásica, el fetichismo de la alteridad radical y la retórica de la diferencia. A esto se añade una ardua polémica con aquella forma de filosofía obsesionada con el suicidio de (...) la razón, la muerte de la metafísica y la superación de la Modernidad. También se debate sobre la crisis del proyecto europeo y sobre movimientos sociales recientes como el 15-M o la primavera árabe. La tesis principal del libro afirma que la postmodernidad hace tiempo que llegó a su fin, sus categorías no son aplicables a un tiempo como el nuestro, marcado por una grave crisis económica, ecológica y social. Asistimos al regreso de la lucha de clases, la geopolítica, las estrategias neocoloniales, el populismo y el fundamentalismo étnico, cultural y religioso. En este contexto de grandes transformaciones, la apuesta normativa del postmodernismo resulta intelectualmente muy pobre y políticamente inútil. El afán por las cuestiones culturales e identitarias lleva a que muchos de sus autores olviden deliberadamente el análisis económico del sistema. Por este motivo, el postmodernismo resulta ser, en la mayor parte de los casos, una réplica exacta de la ideología neoliberal. (shrink)

This review presents a state of the art in artificial intelligence applied to urban planning and particularly to land-use predictions. In this review, different articles after the year 2016 are analyzed mostly focusing on those that are not mentioned in earlier publications. Most of the articles analyzed used a combination of Markov chains and cellular automata to predict the growth of urban areas and metropolitan regions. We noticed that most of these simulations were applied in various areas of China. An (...) analysis of the publication of articles in the area over time is included. (shrink)

The expressivist account of knowledge attributions, while claiming that these attributions are nonfactual, also typically holds that they retain a factual component. This factual component involves the attribution of a belief. The aim of this work is to show that considerations analogous to those motivating an expressivist account of knowledge attributions can be applied to belief attributions. As a consequence, we claim that expressivists should not treat the so-called factual component as such. The phenomenon we focus on to claim that (...) belief attributions are non-factual is that of normative doxastic disagreement. We show through several examples that this kind of disagreement is analogous to that of the epistemic kind. The result will be a doxastic expressivism. Finally, we answer some objections that our doxastic expressivism could seem to face. (shrink)

8 March, now known as International Women’s Day, is a day for feminist claims where demonstrations are organized in over 150 countries, with the participation of millions of women all around the world. These demonstrations can be viewed as collective rituals and thus focus attention on the processes that facilitate different psychosocial effects. This work aims to explore the mechanisms involved in participation in the demonstrations of 8 March 2020, collective and ritualized feminist actions, and their correlates associated with personal (...) well-being and collective well-being, collective efficacy and collective growth, and behavioral intention to support the fight for women’s rights. To this end, a cross-cultural study was conducted with the participation of 2,854 people from countries in Latin America and Europe, with a retrospective correlational cross-sectional design and a convenience sample. Participants were divided between demonstration participants and non-demonstrators or followers who monitored participants through the media and social networks. Compared with non-demonstrators and with males, female and non-binary gender respondents had greater scores in mechanisms and criterion variables. Further random-effects model meta-analyses revealed that the perceived emotional synchrony was consistently associated with more proximal mechanisms, as well as with criterion variables. Finally, sequential moderation analyses showed that proposed mechanisms successfully mediated the effects of participation on every criterion variable. These results indicate that participation in 8M marches and demonstrations can be analyzed through the literature on collective rituals. As such, collective participation implies positive outcomes both individually and collectively, which are further reinforced through key psychological mechanisms, in line with a Durkheimian approach to collective rituals. (shrink)

Uno de los principales problemas de la filosofía de la psicopatología contemporánea consiste en definir qué tipo de estados mentales son aquellos que denominamos delirantes. A esto se le ha denominado el “problema tipológico de los delirios”. El principal objetivo de este artículo es examinar las principales alternativas filosóficas contemporáneas a este problema: el doxasticismo—de acuerdo con el cuál los deli-rios deben ser caracterizados como creencias—y al anti-doxasticismo—el cuál niega el estatuto doxásticos de los delirios y ofrece una caracterización alternativa. (...) Para examinar el debate, el artículo presentará las principales características de ambas posiciones y sus fundamentos. Después, examinaremos los principales argumentos esgrimidos contra el doxasticismo y las respuestas y contraargumentos por parte de las alternativas doxásticas. Finalmente, expondremos algunas cuestiones conceptua-les y desafíos abiertos relacionados con el debate y que, a nuestro juicio, deberían de marcar la hoja de ruta de los filósofos de la mente interesados en los delirios en los próximos años. (shrink)