The paper presents and discusses an example, namely a version of heterogeneous frrst-order logic and uses the classical theorem of Herbrand-Schmidt-Wang about the reduction of heterogeneous first-order logic to homogeneous first-order logic, in order to obtain two transformations between heterogeneous and homogeneous frrst-order logic which are different from the institution morphisms defined by Goguen and Burstall. Moreover, by considering a type of 2-cell among institution morphisms it is obtained a 2-category and also a 2-functor from this to another 2-category.

Se analizan y evalúan las dos tradiciones de la filosofía de la matemática, la corriente principal o académica y la corriente disidente, a partir de las contribuciones de algunos de sus partidarios, y se las intenta aproximar a través de la concepción naturalista de P. Maddy y el problema de la objetividad matemática.

Our aim is to point out some differences between verbal and visual arguments, promoting the rhetorical perspective of argumentation beyond the relevance of logic and pragmatics. In our view, if it is to be rational and successful, film as (visual) argumentation must be addressed to spectators who hold informed beliefs about the theme watched on the screen and the medium’s constraints and conventions. In our reflections to follow, we apply rhetorical analysis to film as a symbolic, human, and communicative act (...) that may sometimes be understood as a visually laid out argument. As a mixture of visual, auditory, and verbal stimuli, film demands active and complex interpretation and (re)construction. Our suggestion is to focus on five different but interrelated elements. The reconstruction and evaluation of the visual argument will be based on those elements, and the whole process will be one of visual argumentation. (shrink)

With his book The Nature of Mathematical Knowledge (1983), Ph. Kitcher, that had been doing extensive research in the history of the subject and in the contemporary debates on epistemology, saw clearly the need for a change in philosophy of mathematics. His goal was to replace the dominant, apriorist philosophy of mathematics with an empiricist philosophy. The current philosophies of mathematics all appeared, according to his analysis, not to fit well with how mathematicians actually do mathematics. A shift in orientation (...) should invoke the more general reflection that causal, genetic factors are as significant for epistemology as logical structure. As I am to a large extent sympathetic with Kitcher's proposal, my aims here will be simple: first I start presenting Kitcher's argument, and then I try to raise some doubts about his contribution. These doubts come probably from my unskilfulness to follow the torrential flow of Kitcher's ideas. (shrink)

Analizamos la manipulación en el discurso público, siguiendo el drama shakespeareano Julio César y la versión fílmica de J.L. Mankiewicz. Al centrarse este discurso en la acción, son menos útiles los argumentos coherentes y bien elaborados que las apelaciones emotivas y las imágenes impactantes. Se oculta la verdad con una retórica brillante, pero perniciosa. Solo la participación activa ante la recepción de un discurso manipulador, sin renunciar a la argumentación retórica, puede ponernos en guardia de forma crítica, racional y razonable.

RESUMENPresentamos la contribución de Th. Tymoczko a la filosofía de la matemática y analizamos y evaluamos las demostraciones asistidas por ordenador y los razonamientos no rigurosos en la matemática experimental, con particular referencia al Teorema de los Cuatro Colores.PALABRAS CLAVETYMOCZKO – CUASI-EMPIRISMO – MATEMÁTICA EXPERIMENTAL – RAZONAMIENTO NO RIGUROSO – DEMOSTRACIONES ASISTIDAS POR ORDENADORABSTRACTWe present Th. Tymoczko’s contribution to the philosophy of mathematics, and we analyze and evaluate the computer-assisted proofs and the non-rigorous reasonings in the experimental mathematics, particularly in (...) reference to the Four-Colour Theorem.KEYWORDTYMOCZKO – QUASI-EMPIRICISM – EXPERIMENTAL MATHEMATICS – NON-RIGOROUS REASONING – COMPUTER-ASSISTED PROOF. (shrink)

Novelty and Continuity in Philosophy and Methodology of Science Wenceslao J. Gonzalez Nowadays, philosophy and methodology of science appear as a ...

The paper presents and discusses an example, namely a version of heterogeneous frrst-order logic and uses the classical theorem of Herbrand-Schmidt-Wang about the reduction of heterogeneous first-order logic to homogeneous first-order logic, in order to obtain two transformations between heterogeneous and homogeneous frrst-order logic which are different from the institution morphisms defined by Goguen and Burstall. Moreover, by considering a type of 2-cell among institution morphisms it is obtained a 2-category and also a 2-functor from this to another 2-category.

Tras su prematura muerte, se ha escrito mucho sobre la personalidad filosófica y política de Josep Lluís Blasco. Siendo sin duda importantes y admirables estos aspectos, para mí fue sobre todo una persona amiga, buena y amable, en el sentido literal de este término, y cuya pérdida me ha producido un desconsuelo irreparable. Así, la redacción de estas líneas no es para mí un mero ejercicio profesional, sino un deber de gratitud y afecto.

Se define la Biocracia -poder político fundado en el cuidado y protección de la vida- y se describe su relación con el derecho fundamental a un nuevo orden mundial (NOM), consagrado en el artículo 28 de la Declaración Universal de los Derechos Humanos (DUDH, 1948) que imperativamente obliga a los Estados a hacer plenamente efectivos todos los derechos humanos (DDHH) de todas las personas - inherentes a la dignidad humana- para que logren felicidad personal, concretando en libertad y autonomía, su (...) proyecto de vida valioso, sin daños ni arbitrariedades, cumpliendo el deber estatal de respetar, proteger y garantizar los DDHH, como reto de la comunidad internacional a favor de la familia humana en la postpandemia de la COVID-19, descrita como la primera guerra “biológica” mundial. -/- Palabras clave: Biocracia, postpandemia, derechos humanos, nuevo orden mundial, proyecto de vida valioso, democracia integral. (shrink)

In this paper, I put forth a novel interpretation of how the third categories under each heading in the table of categories are derived. Drawing on a passage from the first Critique and a letter to Schultz, I argue that in order to derive these categories, a special act of the understanding is required. I propose that we interpret this special act as consisting of an application of the third logical function under the corresponding heading that unites the combination of (...) the first and second categories so as to produce the third. (shrink)

In the last decades, interest in the study of the negative consequences of bullying for the victims has increased. Victims are often known to show emotional adjustment issues, such as negative self-concept and low life satisfaction. Moreover, some studies have observed important associations between self-concept and life satisfaction, in which a positive self-concept is related to high levels of life satisfaction. Other studies have pointed out the importance of emotional intelligence, as a regulatory and protective factor against the negative impact (...) of victimization on adjustment in adolescents. The main objective of this work was to analyze the mediating effect of self-concept on life satisfaction and the moderated mediation effect of EI on self-concept and life satisfaction in the context of peer victimization. The participants in the study were 1,318 Spanish students of both sexes and aged between 11 and 18 years, from four compulsory secondary education centers. The results indicated that, on the one hand, self-concept mediated the relationship between victimization and life satisfaction. On the other hand, EI was not only positively associated with self-concept, but it also significantly moderated the negative influence of victimization on self-concept. EI may also indirectly moderate the relationship between victimization and life satisfaction through the self-concept. These data show the importance of EI as a possible protective and moderating factor of the negative effect of bullying on emotional adjustment, which is interesting for the design of future prevention and intervention programs in school contexts. (shrink)

Resumen. En el presente análisis se exponen las bases del clásico debate entre Richard Clark y Robert Kozma, autores reconocidos en el campo de Tecnología Instruccional y la Educación a Distancia por la relevancia de sus aportaciones; a partir del argumento inicial presentado por Richard Clark en 1983 contenido en su artículo denominado Reconsidering research on learning from media; dónde describe evidencias suficientes que apoyan su opinión respecto a que los medios instruccionales no ejercen influencia alguna en el nivel de (...) aprovechamiento de los estudiantes durante el proceso de enseñanza-aprendizaje.Palabras claves. Tecnología instruccional, educación a distancia, medios, aprendizaje, enseñanza.. This analysis sets out the basis of the classic debate between Richard Clark and Robert Kozma, known authors in the field of Instructional Technology and Distance Education for the relevance of their contributions, from the initial argument presented by Richard Clark in 1983 contained in his article entitled Reconsidering research on learning from media; in which he describes sufficient evidences supporting his opinion that instructional media have no influence on the level of student achievement in the teaching-learning process.Keywords. Instructional technology, distance education, media, learning, teaching. (shrink)

Resumen: La investigación analiza el concepto de justicia en el contexto de la justicia premial consagrada en la legislación colombiana. El presente artículo, que hace parte de una investigación de mayor alcance, realiza primeramente un análisis del concepto de justicia en sentido filosófico, para luego analizar el concepto de justicia premial. Finalmente, se intercepta el concepto de justicia premial con el concepto más general de justicia, a partir de las nociones de paranomos y pleonektès de Aristóteles. Se concluye que el (...) concepto de justicia premial se cataloga como una institución justa tal como la define este filósofo, por lo que no le es dado al intérprete desde esta perspectiva atribuir criterios de injusto a las decisiones que ponen fin a las controversias por intermedio de la justicia premial. (shrink)

En este artículo pretendemos arrojar luz sobre la normatividad propia del conocimiento humano. Describimos el dominio normativo epistémico como un campo de agencia humana que está definido por el conocimiento entendido como logro. La normatividad del conocimiento se apoya en la contribución del agente epistémico a la consecución de ciertas tareas. Tal contribución es epistémicamente significativa cuando el agente llega a participar en la consecución del éxito. Por último identificamos algunos rasgos asociados con la agencia epistémica completa (condiciones de integración (...) cognitiva y autonomía epistémica), y aclaramos lo que queremos decir con implicación apelando a la idea de adoptar una perspectiva epistémica. (shrink)

The author extensively reviews Berciano's last book on Heidegger. Berciano is the spanish best known Specialist on Heidegger's metaphysics and anthropology.