Johannes Kepler dedicated much of his work to discover a law for the refraction of light. Unfortunately, he formulated an incorrect law. Nevertheless, it was useful for anticipating the behavior of light in some specific conditions. Some believe that Kepler did not have the elements to formulate the law that was later accepted by the scientific community, that is, the Snell–Descartes law. However, in this paper, we propose a model that agrees with Kepler’s heuristics and that is also successful in (...) anticipating the behavior of light when it passes through a surface that separates two media with different optical densities. This model adopts strategies that were recommended by Kepler in two types of analogies. The obstacles that led to the failure of the two types of analogies are presented in the article, and we argue that the model proposed here could overcome these specific obstacles. Finally, we show how the proposed model could be articulated with Kepler’s metaphysics of light. (shrink)

En el presente texto abordamos a la luz de la antropología filosófica la pregunta por nuestra experiencia de la enfermedad. Como seres dotados de palabra, esta experiencia está mediada siempre por nuestra manera de hablar sobre ella. El poder nombrar lo que nos pasa nos configura como individuos orgánicos peculiares, frente a otras formas de vida. Pero al hablar sobre nuestras enfermedades caemos en una profunda paradoja: tenemos la necesidad de comunicar a otros nuestra vivencia, que es algo tan íntimo (...) y privado que individualiza; de otra parte, la comprensión de los otros de lo que nos pasa encuentra, sin embargo, un límite casi infranqueable. A menudo, este límite suele ser bordeado por la metáfora y su lenguaje traslaticio. Queremos examinar, a continuación, la relación que podemos establecer entre enfermedad, dolor y metáfora. (shrink)

This article analyzes self-disconnection as a phenomenological characterization of a destructive disease such as Alzheimer’s. We want to show that, in the most extreme cases of its development, the patient sinks into emotional disengagement because of the destructive plasticity that affects them. This isolation implies an emotional challenge for family members who observe that their loved one becomes disconnected and that they cannot do anything to prevent it. However, family members seek to assist their loved one in their marginalization. The (...) scope of this accompaniment reveals the human experience of consolation as an intersubjective response to this disconnection. The analysis of this disconnection reveals, in a paradoxical way, the human need to put distance in the face of extreme suffering, and at the same time shows its limit. The anthropological analysis of the devices of actio per distans can offer transcendental support to the ethics of tenderness in the face of the experience of illness. (shrink)

This article discusses the possibilities of the ontology of hospitality running across the categories of angst, responsibility and aporia. In this way it seeks to address the radical finitude of our concrete death, incorporating the needed, existentive, and ontic considerations of dying, which the heideggerian previous attempt moved away as irrelevant, being not original ones to philosophical reflection. This recovery does not mean, absolutely not, that death and dying have lost their true character and perplexing mystery, or that they have (...) dissolved the very nature of our aporetic existence. Rather, death is and will remain being such an indeterminate and always present concern, restlessness disturbing thought, as beautifully as Schopenhauer had said before: "death is the true inspirational genius or Musagetes of philosophy". (shrink)

En el presente artículo se muestra que en la cosmología cartesiana no resulta claro cómo se puede hablar o referir a cuerpos individuales en el marco de un universo absolutamente compacto. Se defiende que el concepto de cuerpo individual en el interior de dicha cosmología se puede construir como una ficción del espíritu. Un cuerpo individual se puede construir como la extensión que se encuentra encerrada en una superficie maximal cuyas subdivisiones carecen de movimiento relativo entre sí. Se muestra, también, (...) que la cosmología cartesiana puede presentarse como un modelo trivial de la Teoría M. (shrink)

In the frame of the celebration of the century of the publication that gave way to the special theory of relativity, a semblance of the discussions generated from the philosophical implications that derive from the possibility of accepting non-euclidian frames for our space of representation. Poncaré’s argument is exposed in defense of geometrys principle of relativity and the criticism formulated by Hans Reichenbach is discussed.

En el artículo se examina la controversia entre extramisionismo e intramisionismo a propósito de la percepción visual. Se defiende que la evaluación del cierre de la controversia depende del explanandum que rastrea el filósofo/historiador en la reconstrucción que persigue. Si enfatizamos en los mecanismos causales, la controversia se cerró en favor del intramisionismo. Si enfatizamos en aspectos asociados con la intencionalidad o con la forma como ciertas afecciones mentales refieren a objetos externos, la controversia conduce a una conciliación entre intramisionismo (...) causal y extramisionismo mental. Finalmente, si ponemos en duda la necesidad de una distinción entre interno/externo, la controversia se disuelve por carecer de sentido. (shrink)

El artículo critica la naturaleza instantánea impuesta a las experienciaselementales en el sistema construccional propuesto por Carnap en Derlogische Aufbau der Welt. Inspirado en una idea seminal de Peirce, propongoalgunas modificaciones a los primeros niveles del sistema construccionalsin dejar de advertir que una adaptación más cuidadosa exige atender otrascríticas sustanciales.

Wittgenstein defiende que los problemas filosóficos son ilegítimos. Sin embargo, no resulta del todo claro qué se entiende en general por problema filosófico, cuál es, pues, su naturaleza. El presente artículo intenta elucidar la observación de Wittgenstein que sostiene que la forma de un problema filosófico se puede presentar con la expresión “Yo no sé salir del atolladero” (IF § 123). En el artículo se elige, a manera de ejemplo, el escándalo kantiano, que demanda que demostremos con el uso de (...) la razón que la proposición “hay objetos físicos” es verdadera. Sin renunciar al ejemplo, se explora en qué sentido la expresión de Wittgenstein caracteriza en buena medida la naturaleza misma de la dificultad filosófica. En el ejercicio se atienden recomendaciones formales del Tractatus, terapias desplegadas en Sobre la Certeza y el recurso de distinguir entre sentido primario y sentido secundario de una expresión insinuado en las Investigaciones Filosóficas. (shrink)

Este artículo explora si hay algún fundamento sólido para atribuir a Leonardo da Vinci prioridad en la formulación del símil que lleva a concebir el ojo como una cámara obscura. Aquí, se defiende una posición pesimista. No obstante, el artículo resalta algunos aportes del pintor renacentista que pueden considerarse contribuciones a la consolidación del símil.

El presente artículo parte de exponer y analizar dos niveles en el camino metafísico de Heidegger, diferentes mas relacionados recíprocamente: de una parte, el de la crítica al presente, marcado por la cultura del pesimismo que se nutre del desprecio de la civilización técnico-industrial; y, de otra parte, el de la desesperación ontológico existencial anclado en la pérdida epocal de la pregunta por el sentido del ser, la cual comporta, en consecuencia, la imposibilidad de una apropiación individual e histórica de (...) la verdad del ser. (shrink)

Euclid proposed to trace pyramids as artifacts to facilitate the study of visual perception. The artifact assumes that the object seen delimits the base of a pyramid at the apex of which is the perceived eye. The artifact faces a serious difficulty when we notice that visual perception is carried out with two cooperating eyes. The article discusses two attempts to modify the Euclidean artifact to make it work without giving up the central assumptions. These attempts correspond to the classical (...) studies of Ptolemy’s binocular vision and Ewald Hering’s contributions in the 19th century. (shrink)

El artículo explora vasos comunicantes entre el _Tractatus Logico Philosophicus_ de Ludwig Wittgenstein y el _Analysis situs_ de Gottfried Wilhelm Leibniz. Se muestra que las caracterizaciones de objetos en el _Tractatus_ y de puntos en el _Analysis situs_ siguen patrones similares. También se exploran las similitudes y diferencias entre el pretender que «la proposición puede representar la realidad entera» (_TLP_, § 4.12) o «todas [las proposiciones] están unidas por una trama infinitamente fina al gran espejo» (_TLP_, § 5.511) y el (...) hecho de que «cada sustancia simple [tiene] relaciones que expresan a todas las demás, y [por consiguiente] es un espejo vivo y perpetuo del universo» (_Monadología_, § 56). (shrink)

El artículo examina tres propuestas de explicación del fenómeno de refracción de la luz formuladas por los pensadores medievales Roger Bacon, John Pecham y Erazmus Ciolek Witelo. Se muestra, en el caso de Bacon, que la explicación estaba soportada en una metafísica de la propagación de los poderes causales y anidaba un conflicto insalvable. En el caso de Pecham se muestra un mayor compromiso con la necesidad de una ley cuantitativa que, desafortunadamente, conduce a una explicación frustrada. Finalmente, se valora (...) el deseo de Witelo por introducir elementos cosmológicos en su explicación. (shrink)

Discussion about project management, in both the academic literature and industry, is predominantly based on theories of control, many of which have been developed since the 1950s. However, issues arise when these ideas are applied unilaterally to all types of projects and in all contexts. In complex environments, management problems arise from assuming that results, predicted at the start of a project, can be sufficiently described and delivered as planned. Thus, once a project reaches a critical size, a calendar, and (...) a certain level of ambiguity and interconnection, the analysis centered on control does not function adequately. Projects that involve complex situations can be described as adaptive complex systems, consistent in multiple interdependent dynamic components, multiple feedback processes, nonlinear relations, and management of hard data and soft data. In this study, through a complex network, the dynamic structure of a project and its trajectories are simulated using inference processes. Finally, some numerical simulations are described, leading to a decision making tool that identifies critical processes, thereby obtaining better performance outcomes of projects. (shrink)

En la literatura reciente ha tomado fuerza la idea de reconocer en Sobre la certeza la manifestación de un tercer Wittgenstein. Avrum Stroll, en particular, sostiene que en dicha obra se expone una versión nueva y poderosa de fundacionalismo no-homogéneo. Se examina dicho fundacionalismo, y se defie..

We show that certain type of tree forcings, including Sacks forcing, increases the covering of the strong measure zero ideal \. As a consequence, in Sacks model, such covering number is equal to the size of the continuum, which indicates that this covering number is consistently larger than any other classical cardinal invariant of the continuum. Even more, Sacks forcing can be used to force that \<\mathrm {cov}<\mathrm {cof}\), which is the first consistency result where more than two cardinal invariants (...) associated with \ are pairwise different. Another consequence is that \ in ZFC where \ denotes Marczewski’s ideal. (shrink)

The main purpose of this dissertation is to apply and develop new forcing techniques to obtain models where several cardinal characteristics are pairwise different as well as force many (even more, continuum many) different values of cardinal characteristics that are parametrized by reals. In particular, we look at cardinal characteristics associated with strong measure zero, Yorioka ideals, and localization and anti-localization cardinals.In this thesis we introduce the property “F-linked” of subsets of posets for a given free filter F on the (...) natural numbers, and define the properties “ $\mu $ -F-linked” and “ $\theta $ -F-Knaster” for posets in a natural way. We show that $\theta $ -F-Knaster posets preserve strong types of unbounded families and of maximal almost disjoint families. These kinds of posets led to the development of a general technique to construct $\theta $ - $\textrm {Fr}$ -Knaster posets (where $\textrm {Fr}$ is the Frechet ideal) via matrix iterations of ${<}\theta $ -ultrafilter-linked posets (restricted to some level of the matrix). The latter technique allows proving consistency results about Cichoń’s diagram (without using large cardinals) and to prove the consistency of the fact that, for each Yorioka ideal, the four cardinal characteristics associated with it are pairwise different. Another important application is to show that three strongly compact cardinals are enough to force that Cichoń’s diagram can be separated into 10 different values. Later on, it was shown by Goldstern, Kellner, Mejía, and Shelah that no large cardinals are needed for Cichoń’s maximum (J. Eur. Math. Soc. 24 (2022), no. 11, p. 3951–3967).On the other hand, we deal with certain types of tree forcings including Sacks forcing, and show that these increase the covering of the strong measure zero ideal $\mathcal {SN}$. As a consequence, in Sacks model, such covering number is equal to the size of the continuum, which indicates that this covering number is consistently larger than any other classical cardinal characteristics of the continuum. Even more, Sacks forcing can be used to force that $\operatorname {\mathrm{non}}(\mathcal {SN})<\operatorname {\mathrm{cov}}(\mathcal {SN})<\operatorname {\mathrm{cof}}(\mathcal {SN})$, which is the first consistency result where more than two cardinal characteristics associated with $\mathcal {SN}$ are pairwise different. To obtain another result in this direction, we provide bounds for $\operatorname {\mathrm{cof}}(\mathcal {SN})$, which generalizes Yorioka’s characterization of $\mathcal {SN}$ (J. Symbolic Logic 67.4 (2002), p. 1373–1384). As a consequence, we get the consistency of $\operatorname {\mathrm{add}}(\mathcal {SN})=\operatorname {\mathrm{cov}}(\mathcal {SN})<\operatorname {\mathrm{non}}(\mathcal {SN})<\operatorname {\mathrm{cof}}(\mathcal {SN})$ with ZFC (via a matrix iteration forcing construction).We conclude this thesis by combining creature forcing approaches by Kellner and Shelah (Arch. Math. Logic 51.1–2 (2012), p. 49–70) and by Fischer, Goldstern, Kellner, and Shelah (Arch. Math. Logic 56.7–8 (2017), p. 1045–1103) to show that, under CH, there is a proper $\omega ^\omega $ -bounding poset with $\aleph _2$ -cc that forces continuum many pairwise different cardinal characteristics, parametrized by reals, for each one of the following six types: uniformity and covering numbers of Yorioka ideals as well as both kinds of localization and anti-localization cardinals, respectively. This answers several open questions from Klausner and Mejía (Arch. Math. Logic 61 (2022), pp. 653–683).Abstract prepared by Miguel Antonio Cardona-MontoyaE-mail: miguel.cardona@upjs.skURL: https://repositum.tuwien.at/handle/20.500.12708/19629. (shrink)

Con l'espressione persiana "i sei lati del mondo" l'autore allude al modello psicologico 'universale' che caratterizza l'uomo. Come esso filtra nelle parole che usiamo per descrivere la nostra esperienza? È il linguaggio che influenza il nostro modo di vedere il mondo o è la realtà a influire sul nostro modo di esprimerci? Affascinante alternativa che Cardona analizza in pagine ricchissime di suggestioni, dove si incrociano linguistica e psicologia, etnologia e semiologia. Giorgio Raimondo Cardona ha insegnato Glottologia nell'Università di (...) Roma La Sapienza. (shrink)

The following principles are seen to operate in the rules Pānini provides for Sanskrit grammar. (1) The obvious principle that the introduction of affixes and augments which condition sound replacements necessarily precede the latter. (2) Bracketing, whereby an operation whose condition is internal relative to a condition causing another operation applies prior to the latter. (3) The derivational prehistory of a form is pertinent to the operations which apply to it. (4) Blocking: a rule R2 is said to block an (...) R1 if, in a given domain, R1 tentatively applies (and would apply in the absence of R2) wherever R2 can apply, while R2 would be vacuous if R1 applied. (4a) Limited blocking, which obtains where R1 and R2 overlap but also have independent domains of application. These principles account for correct derivations in cases where post-Paninian grammarians invoked rule order: where two rules conflict, that one takes precedence which is stated later in the grammar. This principle is not generally tenable, since some derivations require that a rule stated previously in the grammar take precedence. Hence, the grammarians who invoke such rule ordering in cases of conflict must admit that only a knowledge of the correct results to be obtained by applying the rules allows one to correctly apply the rules in the first place. It is argued that Pānini avoided this weakness. (shrink)

El presente trabajo pretende reflexionar y visibilizar el papel político que han tenido las mujeres como guardianas, custodias y transmisoras de las culturas ancestrales de los pueblos indígenas, afrocolombianos y campesinos. Así mismo, reconocer la resistencia y re-existencia de algunas experiencias organizativas de diversas mujeres en Medellín que luchan, desde su autonomía, por mantener su identidad, sus prácticas y saberes en un contexto de ciudad hegemónico y excluyente. Esto con el fin de transformar las realidades que las afectan y subvertir (...) el modelo político, social, económico y cultural que como mujeres afros, indígenas y campesinas las niega, invisibiliza y ubica en un lugar de subordinación. La importancia de este trabajo radica en darle lugar y legitimidad a los saberes ancestrales y, en este sentido, posicionar a la mujer como sujeto fundamental en las luchas políticas y culturales que se gestan, desde procesos particulares, y emergen como propuestas interculturales y decoloniales que ayudan a combatir el modelo occidental capitalista “de muerte”. (shrink)

Este artículo presenta el concepto de derecho desde diferentes ópticas, cada una de ellas con sus particularidades y la influencia que tienen en la actualidad en los ordenamientos jurídicos. El derecho no es un concepto fácil de entender, pero la forma en que se debe aplicar hoy día debe cobijar no solo la aplicación de la norma o enunciados normativos, sino componentes de índole moral, como los principios, todos ellos en pie de igualdad. No se trata de establecer una jerarquía (...) en los elementos jurídicos y morales, sino un criterio en el cual la corrección del ordenamiento jurídico lleve a la Justicia. Este texto parte de un método hermenéutico dialéctico, y tiene como finalidad ir construyendo un concepto de derecho que cumpla con los estándares de la corrección y la razonabilidad, como principios básicos para cumplir con la igualdad y la justicia. (shrink)

What relationship can be established between the theory of epistemic injustices and the theory of the coloniality of power to think Latin America? This article proposes a dialogue between both theories to think about the actions of subaltern groups in Latin America that, by generating processes of struggle and organization, make epistemic injustices visible as part of their demands. This inquiry is presented in three moments: in the first, the conceptual field of epistemic injustices is defined —from Fricker, Medina and (...) Broncano— and the political/epistemic conception of coloniality of power by Anibal Quijano. In the second moment, the relations between these theories are explained. In the end, some examples of experiences of resistance in Latin America are given that can be analyzed from this dialogue. (shrink)

The article discusses the following question: why has the traditional philosophy of science been reluctant to seriously deal with scientific controversies? An answer is offered and an alternative is suggested. This alternative gives a leading role to the study of controversies within the framework of the philosophy of science. This proposal is supported, firstly, by a brief review of the research methodology employed by Johannes Kepler and, secondly, by the study of the emergence of quantum mechanics by Mara Beller. The (...) defense of the study of controversies is based on the recognition of the other one as the founding point of scientific objectivity and in the proposal of a kind of triangulation. (shrink)

In this paper we explore how some of the largest US-newspapers linguistically frame immigrants to the USA in articles about Mexican and Central American immigrants. Specifically, it is a corpus-assisted discourse study which examines the frequency of different semantic predicate-types with migrant subjects and migrant by-agents in the quest for underlying positive or negative biases. We wish to ascertain what activities migrants are presented as taking part in, principally as agents. The analysis shows that more than half of the migrant/predicate-pairings (...) reflect the dictionary definitions of migrant. However, immigrants are described as illegal 66% of the times that their location is mentioned with an immigrant/predicate-pairing. The non-definition-confirming pairings also show evidence of a negative framing of immigrants, but not of migrants. Furthermore, immigrants are more often than migrants cast as agents of activities that do not simply reiterate their status as migrants. Finally, we found evidence of the Negation Bias in the immigrant/predicate-pairings. (shrink)

Este número monográfico de la revista Co-herencia que tenemos el gusto de presentar es para nosotros un motivo de satisfacción y orgullo. Después de varios meses de trabajo, logramos concretar un valioso conjunto de textos sobre teoría de la historia y la historiografía, dos áreas de investigación que hasta hace unos años eran más bien exóticas en nuestro medio.

On behalf of the School of Philosophy, I would like to welcome you to our University on the occasion of the sixteenth annual meeting of the Comparative and Continental Philosophy Circle. Your prese...

A pergunta pelo ser do homem é a origem da antropologia tanto filosófica quanto pedagógica. Neste horizonte, pode-se resumir a resposta à pergunta dizendo: o ser humano não só é efeito do diálogo, mas humaniza e se humaniza por meio do diálogo. Quando se planeja ambientes orientados a desenvolver as potências anímicas do diálogo em todos, e em cada um dos participantes da cena pedagógica, igualmente se está tanto em meio a uma antropologia pedagógica quanto a uma didática antropológica. Esta (...) foi a tradição que Christoph Wulf, na segunda metade do século XX e no começo do século XXI, sistematizou. Dentro desta corrente de pensamento se enquadra a investigação intitulada Diálogo: condição de formação. Assim, pode-se afirmar que este projeto se baseia na tradição alemã que põe a Bildung no centro, como uma categoria que, ao mesmo tempo, tem uma fundamentação filosófica e alguns efeitos tanto na concepção quanto na ação pedagógica. Palavras-chave: Diálogo. Antropologia pedagógica. Christoph Wulf. Gadamer. (shrink)