The volume presents the proceedings of the international symposium, fruit of a common research project engaged in by 48 scholars, that took place in Rome to celebrate the 8th centennial of Saint Bonaventure's birth. The theme, "Deus summe cognoscibilis", could sound, in the contemporary agnostic, secular context, like a provocation. The approach, however, of the symposium was to consider "the current theological relevance of Saint Bonaventure", focusing on thinking with our author about a number of themes: theological method (philosophy, theology (...) and mysticism); revelation (in Scripture and history); creation (in Laudato si' and evolution); Christology (the triplex Verbum and logos of the Cross); ecclesiology and Trinitarian dimensions of sacramental theology; pre-phenomenological Trinitarian theology, and our own divine filiation. An appendix contains a previously unpublished text of J. Ratzinger about Bonaventure's theological method. The volume has also two indexes (authors' names and references to the works of Bonaventure). (shrink)

As it is well known, in the forties of the past century, Curry proved that in any logic S closed under Modus Ponens, uniform substitution of propositional variables and the Contraction Law, the naïve Comprehension axiom trivializes S in the sense that all propositions are derivable in S plus CA. Not less known is the fact that, ever since Curry published his proof, theses and rules weaker than W have been shown to cause the same effect as W causes. Among (...) these, the Contraction rule or the Modus Ponens axiom, for example, are to be noted. But, moreover, as Brady has proved, even the Generalized Modus Ponens axiom or the Generalized Contraction rule give rise to “Curry’s Paradox” under the same circumstances as W does. In some previous work by us, “weak relevant model structures” are defined on “weak relevant matrices” by generalizing Brady’s model structure MCL built upon Meyer’s Crystal matrix CL. We have proved that wr-ms only verify logics with the “depth relevance condition”. The aim of this paper is to show how to falsify gMPa and gRW in certain wr-ms. In particular, it will be shown that gMPa is falisfied in any wr-ms and gRW in any wr-ms verifying Routley and Meyer’s basic positive logic B+. (shrink)

This article highlights two possible unnoticed acrostics in Ovid's Metamorphoses concerning the predictions of Calchas and Helenus.

Neuroscience has studied deductive reasoning over the last 20 years under the assumption that deductive inferences are not only de jure but also de facto distinct from other forms of inference. The objective of this research is to verify if logically valid deductions leave any cerebral electrical trait that is distinct from the trait left by non-valid deductions. 23 subjects with an average age of 20.35 years were registered with MEG and placed into a two conditions paradigm (100 trials for (...) each condition) which each presented the exact same relational complexity (same variables and content) but had distinct logical complexity. Both conditions show the same electromagnetic components (P3, N4) in the early temporal window (250–525 ms) and P6 in the late temporal window (500–775 ms). The significant activity in both valid and invalid conditions is found in sensors from medial prefrontal regions, probably corresponding to the ACC or to the medial prefrontal cortex. The amplitude and intensity of valid deductions is significantly lower in both temporal windows (p = 0.0003). The reaction time was 54.37% slower in the valid condition. Validity leaves a minimal but measurable hypoactive electrical trait in brain processing. The minor electrical demand is attributable to the recursive and automatable character of valid deductions, suggesting a physical indicator of computational deductive properties. It is hypothesized that all valid deductions are recursive and hypoactive. (shrink)

Hay doble pulsión en el centro de la discusión del razonamiento deductivo. Una conduce aparentemente a la abstracción y dominios arbitrarios, mientras que la otra conduce a la concreción y la dependencia del contenido. El objetivo de esta investigación es diseñar, aplicar y validar un instrumento de evaluación que nos permita corroborar si el razonamiento deductivo maneja reglas lógicas o contenidos. La muestra de estudio se compuso de 80 participantes (edad 18-77 años). El test consta de 60 ítems categorizados en: (...) formalidad, integrabilidad, complejidad y modalidad. Los resultados ponen de manifiesto la fiabilidad del test de razonamiento deductivo con un alpha de Cronbach. 775 y con un índice de validación. 850 para el índice de inteligencia no verbal (INV) del RIAS. Cómo conclusión inferimos que el razonador deductivo no dispone de un cuerpo preciso de reglas generales deductivas, sino que usa colecciones de reglas heurísticas cada vez menos abstractas. (shrink)

This essay addresses one of the central questions in the ongoing debate about just war theory: are soldiers morally responsible for serving in unjust wars? Francisco de Vitoria addressed this question in the sixteenth century using the concepts of invincible and vincible ignorance. He excused soldiers serving in unjust wars, if they did not know the war was unjust and if they did not have the means to overcome their ignorance; if they had the means, they were morally culpable. In (...) modern just war theory, ignorance is still used both to blame and excuse military service in unjust wars. This essay identifies ten different ways that scholars have used ignorance to argue about the moral responsibilities of soldiers. It then applies the different meanings of ignorance to soldiers serving in Western nations and, using Vitoria’s means tests, evaluates if modern soldiers do indeed have the means to overcome their ignorance. Since many soldiers do have the means, invincible ignorance should no longer be used as an excuse for their service in unjust wars; furthermore, soldiers may, in fact, be morally culpable for serving in them. (shrink)

El problema de la exclusión social –situación de quienes encuentran cerrado el acceso a los bienes y servicios que permiten un básico desarrollo de la personalidad– constituye un desafío para la legitimidad del sistema social y las normas penales. Principalmente porque ello supone que en una misma sociedad hay individuos con estatus de persona –ciudadanos “normales”, incluidos– y otros que, por estar privados de los derechos asociados al estatus, están total o parcialmente excluidos del mismo. De cara a evitar su (...) instrumentalización penal se propone, en los delitos más conectados con la noción de ciudadanía que con la de dignidad, la atenuación o exclusión de la pena por disminución de la exigibilidad. Si el delito no se explica sólo por déficit de motivación del sujeto, sino también por un déficit de socialización imputable al propio sistema social, lo que tiene lugar es una especie de corresponsabilidad. (shrink)

It is an intimate experience for us to think, to understand and to perceive things as being identical to themselves, and to suppose, consequently, that things are truly “what” they are. Something is always conceived as itself. The given is given full of itself in all its modifications. For instance, I can think or perceive partially some lips, I can see them almost in their whole or in some of their aspects, or just see them disappear. But it does not (...) seem to be possible to think or to perceive a given as almost itself, as an aspect or as part of itself. It is the aim of this work to study the assumptions and conditions for the original position of sameness in experience, just as it occurs in the synthesis of the datum singular and distinct. The polarization of single tone (einstimmig) intentional rays in an αvτó already contains the aporiae peculiar to the experience of the identical, whose revelation shall lead us, on the one hand, to one of the nuclei of the analysis of passive synthesis, and, on the other hand, to point up how critical revision of the numerical or extensional model of self-identity is for the unity of meaning. Then, it will be a question of pointing out the reasons why in a phenomenology of identity, the renunciation of the phenomenological legitimacy of the αvτó as a guarantee for the different positions of identity must be observed. DOI: 10.1007/978-94-011-3464-4_13 . (shrink)

LCo with the Converse Ackermann Property is defined as the result of restricting Contraction in LC. Intuitionistic and Superintuitionistic Negation is shown to be compatible with the CAP.

We define two extensions of Lewis’ S3 with two versions of Peirce’s Law. We prove that both of them have the Ackermann Property.

We define two extensions of Lewis’ S3 with two versions of Peirce’s Law. We prove that both of them have the Ackermann Property.

En el presente estudio se abordarán los crímenes cometidos por mujeres durante los últimos años de la España de la Restauración y la Dictadura de Primo de Rivera. De igual modo, se profundizará en la dicotomía espacial y discursiva que suponen estas acciones al ser cometidas en el ámbito de lo privado, pero pronto extrapoladas a lo público con fines sen­sacionalistas. Recortes de prensa, fragmentos literarios y pun­tualmente sentencias judiciales serán las fuentes de las que nos valdremos para desarrollar esta (...) investigación con el objeto de profundizar en esta difusa línea divisoria de actuación dialécti­ca. Contra los preceptos definidos por el discurso dominante en torno al «sexo femenino» que encasillaba a las mujeres en una concepción de perpetua debilidad, belleza y letargo, la trans­gresión nacida en el seno de lo privado se hará pública demos­trando que las idealizaciones creadas sobre ellas poco tenían que ver con la realidad. (shrink)

Partiendo del intenso impacto que está teniendo el big data y el resto de tecnologías conexas en nuestra existencia personal y social, el presente artículo busca, en primer lugar, realizar una aproximación a la naturaleza del conocimiento que los datos masivos generan desde el concepto foucaultiano de saber-poder, como también desentrañar el modo en que dicho conocimiento es utilizado para legitimar decisiones que se toman en la incertidumbre. En segundo lugar, intentará analizar qué novedad supone dicho saber en relación a (...) su más inmediato precedente: la estadística y, por último, tendrá como fin examinar el tipo de poder que surge de dicho saber, en relación especialmente con las ideas, de nuevo en la estela de Michel Foucault, acerca del poder pastoral y la conducción a través de la verdad confesada. (shrink)

Preserving dignity during the dying process requires reviewing the roles of those involved in the treatment, care methods and decision-making. This article examines the participation and responsibility assigned to nurses regarding decision-making in the final stages of life, as laid out in the Rights to and Guarantee of Dignity for the Individual During the Process of Death Act. This text has been analysed on the levels of socio-cultural practice and discourse practice, using the critical discourse analysis methodology. The results show (...) that, although the law is another result of the social trend of patient empowerment, the responsibility of the nurses is not recognised, and they are left out of the decision-making process in the final stages of life. (shrink)

This paper is a sequel to ‘Belnap-Dunn semantics for natural implicative expansions of Kleene's strong three-valued matrix with two designated values’, where a ‘bivalent’ Belnap-Dunn semantics is provided for all the expansions referred to in its title. The aim of the present paper is to carry out a parallel investigation for all natural implicative expansions of Kleene's strong 3-valued matrix now with only one designated value.

Our question is: can we embed minimal negation in implicative logics weaker than I→? Previous results show how to define minimal negation in the positive fragment of the logic of relevance R and in contractionless intuitionistic logic. Is it possible to endow weaker positive logics with minimal negation? This paper prooves that minimal negation can be embedded in even such a weak system as Anderson and Belnap’s minimal positive logic.

El grano de ben es un fruto que ha sido utilizado con fines terapéuticos desde la Antigüedad. Su descripción está incluida en el libro VI del De simplicium medicamentorum facultatibus de Galeno (s. II), una de las obras farmacológicas más importantes de la historia de la medicina. En este artículo compararemos desde una perspectiva filológica la entrada que Galeno dedicó a este simple en dos de sus traducciones medievales: la árabe de Ḥunayn ibn Isḥāq (s. IX) y la latina de (...) Gerardo de Cremona (s. XII). Nuestro análisis ayudará a profundizar en el estudio de estas dos traducciones y en la técnica de Gerardo de Cremona, el traductor más prolífico de obras de medicina griega y árabe al latín en la Edad Media. (shrink)

Etude de l'extension par la negation semi-intuitionniste de la logique positive des propositions appelee logique C, developpee par A. Urquhart afin de definir une semantique relationnelle valable pour la logique des valeurs infinies de Lukasiewicz (Lw). Evitant les axiomes de contraction et de reduction propres a la logique classique de Dummett, l'A. propose une semantique de type Routley-Meyer pour le systeme d'Urquhart (CI) en tant que celle-la ne fournit que des theories consistantes pour la completude de celui-ci.

En este trabajo se argumenta que no es posible contar objetos reales. Aunque a primera vista esta tesis pueda resultar desconcertante, o un simple ejercicio de «arte conceptual», las razones que la apoyan son fundadas y muy naturales. Se examinan algunas consecuencias importantes de dicha tesis y se ponen en conexión con diversos planteamientos de H. Putnam, P. Unger y E. Sosa.

Resumen Este texto se centra en la concepción de la Kaaba de una mujer excepcional por su relación con Dios y por su conocimiento místico (ma‘arifa), Rābi‘a al-‘Adawiyya (m. 801). Ella protagonizó el paso de la ascética a la mística en la Basora del siglo VIII y marcó una diferencia respecto a los ascetas de su tiempo: realizó el viaje al interior de sí misma y ejerció una continua introspección para buscar el profundo deseo del corazón y purificarlo. Los relatos (...) de la peregrinación a la Kaaba, la Casa o morada de Dios, se comparan a los grados de oración descritos por Teresa de Jesús en el Libro de la Vida.Palabras clave: Kaaba, mística, Rābi‘a al-‘Adawiyya, Teresa de Jesús. (shrink)

This paper raises the possibility of a female authorship for the anonymous 14th century work The Cloud of Unknowing, which academics always attribute to a man. It points out four premises: firstly the error of sexual attribution of the authorship of The Mirror of Simple Souls, maintained until 20th century; secondly, the conception of woman by the English mystical male writers Rolle and Hilton, which is not found in the writings attributed to the author of The Cloud; thirdly, the literary, (...) theological and mystical greatness of a English woman writer of 14th century, Julian of Norwich; and, finally, the scholars' considerations about the author (man for them) of The Cloud and its related treatises, which, notwithstanding, could perfectly be attributed to a woman of the fourteenth century in England. So, the conclusion invites to question the male authorship of this masterpiece, perhaps, for the first time. (shrink)

This paper offers a particular intuitionistic negation completion of Urquhart's system C resulting in a super-intuitionistic contractionless propositional logic equivalent to Dummett's LC without contraction.

In recent years, there has been increasing concern about unethical conduct within corporate business, not least because of the scandalous behavior of former chief executives at top blue chip companies such as Enron, Worldcom, Parmalat, and Volkswagen. These scandals have not only threatened the privileged position of senior corporate employees but also the solvency of the companies they manage and lead. The high profile cases of corporate crime and corruption that occurred in the early 2000s together with the 2008 Wall (...) Street bailouts and the growth in criminal prosecutions since have raised the profile of business ethics to an unprecedented level. Greater public sensitivity toward and awareness about the unlawful and immoral conduct of firms in the United States and elsewhere, has created demand for organizations to become more accountable and socially responsible and prompted greater regulatory scrutiny. It has also served to highlight the embryonic and delimited state of research and scholarship on business ethics, where the focus has tended to remain on leadership. A neglected, though important, line of ethical enquiry concerns followership. Corporate wrongdoing would be less formidable and extensive if it was not aided and abetted. Two key questions arise. First, what prompts followers to support rather than oppose bad leaders? Second, what can be done to stem or at least curtail their allegiance to bad leaders? (shrink)

Łukasiewicz three-valued logic Ł3 is often understood as the set of all 3-valued valid formulas according to Łukasiewicz’s 3-valued matrices. Following Wojcicki, in addition, we shall consider two alternative interpretations of Ł3: “well-determined” Ł3a and “truth-preserving” Ł3b defined by two different consequence relations on the 3-valued matrices. The aim of this paper is to provide (by using Dunn semantics) dual equivalent two-valued under-determined and over-determined interpretations for Ł3, Ł3a and Ł3b. The logic Ł3 is axiomatized as an extension of Routley (...) and Meyer’s basic positive logic following Brady’s strategy for axiomatizing many-valued logics by employing two-valued under-determined or over-determined interpretations. Finally, it is proved that “well determined” Łukasiewicz logics are paraconsistent. (shrink)

There have been debates across the globe for a social and culturally sensitive ethics to meditate a catalyst of template for informed consent (IC) in the conduct of social researches and clinical trial. The study adopted ethical relativism theory to explore social and cultural contingencies on IC with descriptive research design and snowball sampling techniques with a pool of 23 participants randomly and purposively selected amongst the stakeholders including researchers. Seven lecturers and 5 medical practitioners from selected universities, 5 clergy (...) members of different genders and denominations with 2 Imams, 1 chief and 2 traditional health practitioners completing the pool. The data were compiled separately with pseudonym to maintain the anonymity of the participants and content analysed thematically to probe awareness, understanding, patriarchy and religious dimensions on IC. The paper argued that ethics and law regulations must be strengthened to leverage on different individual values, norms and social indices. The paper concluded and suggested that researchers can avoid and resolve ethical dilemmas and maintain research regularity when ethical obligations are well understood and strictly adhered to, and to develop the Informed Consent Evaluation Feedback Tool (ICEFbT) with oversight function from Institution Review Board (IRB) in the universities and research institutes before the commencement of research and/or medical procedures. (shrink)

The concept of constructive negation we refer to in this paper is (minimally) intuitionistic in character (see [1]). The idea is to understand the negation of a proposition A as equivalent to A implying a falsity constant of some sort. Then, negation is introduced either by means of this falsity constant or, as in this paper, by means of a propositional connective defined with the constant. But, unlike intuitionisitc logic, the type of negation we develop here is, of course, devoid (...) of paradoxes of relevance. (shrink)

As it is well known, Relevance Logic R plus the axiom mingle (R-Mingle) does not have the variable-sharing property (vsp). The aim of this paper is to improve this result by defining a weak logic with the axiom mingle and not included in minimal logic BM lacking the vsp.

Łukasiewicz three-valued logic Ł3 is often understood as the set of all 3-valued valid formulas according to Łukasiewicz’s 3-valued matrices. Following Wojcicki, in addition, we shall consider two alternative interpretations of Ł3: “well-determined” Ł3a and “truth-preserving” Ł3b defined by two different consequence relations on the 3-valued matrices. The aim of this paper is to provide dual equivalent two-valued under-determined and over-determined interpretations for Ł3, Ł3a and Ł3b. The logic Ł3 is axiomatized as an extension of Routley and Meyer’s basic positive (...) logic following Brady’s strategy for axiomatizing many-valued logics by employing two-valued under-determined or over-determined interpretations. Finally, it is proved that “well determined” Łukasiewicz logics are paraconsistent. (shrink)

El planteo que pretendo desarrollar en el presente trabajo surge de la reflexión sobre mi práctica docente en la cátedra de 'Introducción a la Filosofía' de la Facultad de Humanidades y Ciencias de la Educación de la Universidad Nacional de La Plata, en la que me desempeño impartiendo clases teóricas desde el año 2003 a la fecha. Los destinatarios de las mismas son, principalmente, alumnos de la carrera de Psicología, en sus variantes de licenciatura y/o profesorado, de la Facultad de (...) Psicología de la UNLP. Las principales características de la materia son el abultado número de alumnos que la cursan, su organización cuatrimestral, y, como es obvio, su ubicación inicial en la carrera; su acreditación depende de la aprobación de un examen parcial escrito, en las clases de trabajos prácticos, y de la aprobación de un examen final, de modalidad oral. (shrink)