The early controversies surrounding the axiom of choice are well known, as are the many results that followed concerning its dependence from, and equivalence to, other mathematical propositions. This paper focuses not on the logical status of the axiom but rather on showing why it fails in certain categories.

Norms conferring public or private powers, i.e., the competence to issue other norms, play a very important rôle in law. But there is no agreement among legal philosophers about the nature of such norms. There are two main groups of theories, those that regard them as a kind of norms of conduct (either commands or permissions) and those that regard them as non-reducible to other types of norms. I try to show that reductionist theories are not quite acceptable; neither the (...) command-variety (Kelsen, Alf Ross inOn Law and Justice), nor the permission-variety (von Wright, Kanger, Lindahl) provide a satisfactory account of competence norms.Among the authors who maintain that competence norms are different from (and hence not reducible to) norms of conduct are Hart, Ross inDirectives and Norms, and Searle. Ross and Searle distinguish between regulative and constitutive rules as two radically different kinds of rules and classify competence norms among constitutive rules. This distinction runs parallel to von Wright's distinction between rules that are prescriptions and determinative rules. While the first regulate actions (by commanding, prohibiting, or permitting them), determinative rules define certain concepts. To view competence norms as (partial) definitions of certain legal concepts (like those of legislator, judge, etc.) seems to open interesting perspectives and to shed light on at least one aspect of these elusive norms. (shrink)

1. Le fe por la palabra -- 2. Topía y Utopía -- 3. Luz en la caverna.

In the context of bounded arithmetic we consider some general replacement schemes and construct models for them. A new proof of a conservation result between and is derived.

This paper reports a psychological study of human categorization that looked at the procedures used by expert scientists when dealing with puzzling items. Five professional botanists were asked to specify a category from a set of positive and negative instances. The target category in the study was defined by a feature that was unusual, hence situations of uncertainty and puzzlement were generated. Subjects were asked to think aloud while solving the tasks, and their verbal reports were analyzed. A number of (...) problem solving strategies were identified, and subsequently integrated in a model of knowledge‐guided inductive categorization. Our model proposes that expert knowledge influences the subjects' reasoning in more complex ways than suggested by earlier investigations of scientific reasoning. As in previous studies, domain knowledge influenced our subjects' hypothesis generation and testing; but, additionally, it played a central role when subjects revised their hypotheses. (shrink)

In 1911 the Wilson cloud chamber opened new possibilities for physics pedagogy. The instrument, which visualized particles’ tracks as trails of condensed vapour, was adopted by physicists to pursue frontier research on the Compton effect, the positron and the transmutation of atomic nuclei. But as the present paper will show, Wilson's instrument did not just open up new research opportunities, but the possibility of developing a different kind of teaching. Equipped with a powerful visualization tool, some physicists–teachers employed Wilson's instrument (...) to introduce their students to a wide range of phenomena and concepts, ranging from the behaviour of clouds to Einstein's photon, the wave–particle duality and the understanding of the nucleus. This paper uses the notes, books and prototypes of these pioneering physicists–teachers to compose a pedagogical history of the Wilson cloud chamber, documenting an episode of immense ingenuity, creativity and scientific imagination. (shrink)

This article moves from the observation that one of the key characteristics of contemporary Italian fiction is a preoccupation with ethics and more specifically with the issues raised by the “ethical turn” in contemporary philosophy and theory. Current literary criticism, it is argued, has been slow to respond to the ethical dimension of these narratives whose innovative and important cultural contribution has yet to be fully appreciated. It is therefore necessary to develop a keener sensitivity to the ethical discourses developed (...) in these literary texts, but this can only be achieved by first confronting some fundamental questions about the relationship between ethics and literature today. The answers to these questions make it possible to elaborate an initial conceptual framework that can re-orient reading and enable the critic to respond adequately to the ethical issues raised in and by the narrative. Accordingly, in this article the author proposes to explore from a theoretical perspective the relationship between ethics and literature in the context of the historical and philosophical predicaments of contemporary society. The discussion is divided into two parts: the first is devoted to an exploration of contemporary ethical thinking, and the second on the contribution that literature can make to that thinking. In the first part, the author proposes an approach to ethics based on the virtue tradition which, since Aristotle, has defined ethics as the search for "the good life." This tradition, however, is transformed through an engagement with the work of Gilles Deleuze and Immanuel Levinas. From Deleuze the author draws the idea that the good life is one devoted to pursuing human plenitude through the multiplication of connections and intensities. From Levinas, on the other hand, emerges a powerfully haunting description of an ethical life marked by absolute responsibility for and obligation to the other. These two seemingly opposed views are not construed as irreconcilable and contradictory but rather as vectors which keep opposing tensions in check and ultimately define a necessary negotiation between the desire for human plenitude and the acknowledgement of responsibility for other human and non human life. Ultimately my argument is that such tensions establish the ethical terrain in which contemporary narratives seek to intervene. In the second part of the article, the nature and possibilities of such an intervention are explored through six theses which provocatively articulate the relationship between literature and ethics. The cornerstone thesis is that literature is an encounter. Each subsequent thesis endeavours to develop this initial assertion and explore its consequences. The theses are accompanied by a gloss which unfolds its meaning and significance: the answers that the given thesis provides but also the questions that it raises. Together, the theses provide a heuristic framework for a literary criticism sensitive to ethical issues and therefore capable of grappling with the important cultural work carried out in fictions that have struggled to receive the recognition they deserve. (shrink)

Des influences égyptiennes dans la Descriptio orbis de Denys d’Alexandrie ? L’examen attentif des composantes laudatives et du contenu du proème de la Descriptio orbis de Denys le Périégète prouve que le poète originaire d’Alexandrie a été influencé dans son œuvre même par la religion égyptienne. En particulier, derrière l’éloge de l’Océan paraît se cacher un hymne à la louange du Nun primordial.Egyptian Influences in the Descriptio orbis by Dionysius of Alexandria? The thorough analysis of the laudatory components and contents (...) of the proem by Dionysius Periegetes’ Descriptio orbis shows that the Alexandrian poet was also influenced in his own poem by the Egyptian religion. In particular, behind the encomium of the Ocean, it looks as if the poet is hiding a hymn to the primeval Nun. (shrink)

Introduzione Nel codice della sua Bibliotheca consacrato a recensire la produzione letteraria di Temistio, il patriarca Fozio testimonia di aver letto – oltre ad alcune opere filosofiche – un corpus di trentasei discorsi politici (λόγοι πολιτιϰοιλς), tra cui alcuni indirizzati a Costanzo, a Valente e Valentiniano II, a Teodosio, non tutti pervenuti. Ora, l'opera oratoria di Temistio, quale noi moderni leggiamo, comprende trentatrè orazioni, pubbliche e private, di cui due (o forse tre) incomplete. È molto probabile che gli altri tre (...) discorsi che Fozio ugualmente leggeva siano da identificare con orazioni perdute, di cui sopravvivono talune notizie: il discorso recitato nel 357 dinanzi al senato di Costantinopoli in occasione di un'ambasceria a Roma, il panegirico indirizzato nel 363 all'imperatore Giuliano per il suo quarto consolato e l'orazione sulla tolleranza religiosa indirizzata a Valente tra gli anni 375–376. Verrebbe, in questo modo, confermata la notizia della Bibliotheca circa l'esistenza di un corpus di complessivi trentasei discorsi ed in particolare rafforzata l'ipotesi, ventilata da taluni studiosi, secondo cui la silloge temistiana in nostro possesso corrisponderebbe in buona sostanza al ‘libro’ recensito da Fozio. (shrink)

En este texto, presento a Lamarck, como un autor que debe ser considerado, no solo como uno de fundadores de la biología, sino uno de los precursores del positivismo. Se examinarán nociones de “fuerza vital”, organización, “plan de la naturaleza”, “sentimiento interior” y hábito, pilares de su teoría de la transformación. Esta teoría fusiona el determinismo inherente al “plan de la naturaleza” (PN) con el papel más flexible del “sentimiento interior” (SI) y el hábito en la modificación. Es así como, (...) Lamarck defendió un holismo materialista que justifica la imagen de una naturaleza que, al organizar la materia, da lugar a la generación espontánea de seres vivos simples que a lo largo del tiempo se transforman incrementando los grados de organización, culminando con la aparición del hombre. Idea que Comte extrapoló para justificar un progreso social atado a la aparición de las ciencias positivas. Este trabajo también evalúa la crítica de Comte a Lamarck acerca del papel del medioambiente, cuyo potencial de cambio estaría limitado por “la existencia de “obstáculos interiores” a la modificación, superados en los humanos mediante la emergencia de la sociedad. Ambos autores estuvieron influenciados por François Quesnay, quien propugnaba una sociedad regida por una ética basada en una ley natural biológica. Pero, mientras Lamarck anticipaba el riesgo de la autoextinción humana, Comte consideraba que el verdadero progreso se lograría al convertir esa ley natural en fundamento de una nueva religión secular. (shrink)

In this work I argue that Descartes was not a trialist by showing that the main tenets of trialist interpretations of Descartes's theory of substance are either not supported by the text or are not sufficient for establishing the trialist interpretation.

Some important ideas in Kelsen's Pure Theory of Law can be traced back to Kantian tradition, which has been very influential in Kelsen's thought, particularly in his early period. Among them we find the distinction between two radically different worlds (the world of facts and the world of norms), the normativity of legal science and the idea of validity as a binding force, based on the famous doctrine of the basic norm. These tenets and, especially, the use of a normative (...) concept of validity prove to be incompatible with Kelsen's positivistic programme of a value‐free legal science. The science of law cannot state that legal norms are obligatory or binding without trespassing the limits of Kelsen's ideal of a legal science; on the other hand, it is possible to define the concept of a legal system without resorting to the basic norm. So, if Kelsen is to be regarded as a consequent positivist, the Kantian ingredients of his theory must be rejected and the descriptive concept of validity as membership must be substituted for the normative notion of validity as a binding force. (shrink)

In Republic VI 508e-9b Plato has Socrates claim that the Good is the cause (αίτίαν) of truth and knowledge as well as the very being of the Forms. Consequently, as causes must be distinct from and superior to their effects, the Good is neither truth nor knowledge nor even being, but exceeds them all in beauty (509a), as well as in honour and power (509b). No other passage in Plato has had a more intoxicating effect on its readers. To take (...) just one example, James Adam was moved to quote St. Paul when he remarked about this passage that, 'it is highly characteristic of Plato's whole attitude that he finds the true keystone of the Universe — the ultimate fountain from which both Knowledge and Existence flow — in no cold and colourless ontological abstraction, like Being, but in that for which "all creation groans and labours". (shrink)

This paper criticizes Alexy's argument on the necessary connection between law and morality. First of all, the author discusses some aspects of the notion of the claim to correctness. Basically, it is highly doubtful that all legal authorities share the same idea of moral correctness. Secondly, the author argues that the claim to correctness is not a defining characteristic of the concepts of “legal norm” and “legal system”. Hence, the thesis of a necessary connection between law and morality based on (...) such claim cannot be accepted. (shrink)

RESUMEN: En este artículo tratamos de hacer plausible la hipótesis de que las conectivas de diferentes lógicas no necesariamente difieren en significado. Utilizando el tratamiento categorista de las conectivas, argumentaremos contra la tesis quineana de que la diferencia de lógicas implica diferencia de significado entre sus conectivas, y ubicamos el cambio de tema en la diferencia de objetos más que en una tal diferencia de significado. Finalmente, intentamos mostrar que ese tratamiento categorista es una forma de minimalismo semántico, de acuerdo (...) con el cual no todos los elementos semánticos usuales son relevantes para determinar el significado de las conectivas.ABSTRACT: We argue here that the meanings of logical connectives need not differ in different logics. treatment of the logical connectives, we argue against the well-known Quinean thesis that a difference between logics implies a difference in the meanings of connectives. We thus locate this change in the difference between certain objects rather than in the difference between the meaning of connectives. Finally, we try to show that the category-theoretic treatment of logical connectives is a form of semantic minimalism, according to which not all the usual semantic components are relevant in fixing the meaning of a connective. (shrink)

Children usually use the external and physical features of characters in movies or stories as a means of categorizing them quickly as being either good or bad/evil. This categorization is probably done by means of heuristics and previous experience. However, the study of this fast processing is difficult in children. In this paper, we propose a new experimental paradigm to determine how these decisions are made. We used illustrations of characters in folk tales, whose visual representations contained features that were (...) compatible or incompatible with the moral identity of the characters. Sixteen children between 8 and 10 years old participated in the experiment. We measured their electrodermal activity when they were listening to the story and looking at pictures of the characters. Results revealed a higher increase in skin conductance when the illustrations showed a moral condition that was incompatible with the actions of a character than when they showed one that was compatible. These results suggest that children make fast decisions about the moral identity of characters based on their physical features. They open up new possibilities in the study of the processing of moral decisions in children. (shrink)

Conventional quantitative methods for the measurement of organizational legitimacy consider mainly three sources that make judgments about organizations visible: news media, accreditation bodies, and surveys. Over the last decade, however, social media have enabled ordinary citizens to bypass the gatekeeping function of these institutional evaluators and autonomously make individual judgments public. This inclusion of voices beyond functional and formally organized stakeholder groups potentially pluralizes the ongoing discussions about organizations. The individual judgments in blogs, tweets, and Facebook posts give indication about (...) the broader fit between an organization’s perceived behavior and heterogeneous social norms and therefore constitute an indicator of organizational legitimacy that can be accessed and measured. We propose the use of social media data and sentiment analysis to study the affect-based responses to organizational actions by citizens. We critically discuss and compare the method with existing quantitative methods for legitimacy measurement and apply them to a recent case in the banking industry. We discuss the value of the method for studying the process of legitimacy construction as the expression and negotiation of normative judgments about organizations by various evaluators. (shrink)

The paper aims at outlining some essential Neoplatonic traits in order to accomplish an ecological Metaphysics, by developing a dynamic and intensive notion of «Selfness» within three main fields of knowledge: Biology, Psychology, Cosmology. Starting from post-cybernetics systems’ theories, by deepening Bateson’s Ecology of Mind, in the end the research will restore the ancient One-Many aporia, showing its irrefutable value.

We present a general approach to quantified modal logics that can simulate most other approaches. The language is based on operators indexed by terms which allow to express de re modalities and to control the interaction of modalities with the first-order machinery and with non-rigid designators. The semantics is based on a primitive counterpart relation holding between n-tuples of objects inhabiting possible worlds. This allows an object to be represented by one, many, or no object in an accessible world. Moreover (...) by taking as primitive a relation between n-tuples we avoid some shortcoming of standard individual counterparts. Finally, we use cut-free labelled sequent calculi to give a proof-theoretic characterisation of the quantified extensions of each first-order definable propositional modal logic. In this way we show how to complete many axiomatically incomplete quantified modal logics. (shrink)

Introduzione Nel codice della sua Bibliotheca consacrato a recensire la produzione letteraria di Temistio, il patriarca Fozio testimonia di aver letto – oltre ad alcune opere filosofiche – un corpus di trentasei discorsi politici (λόγοι πολιτιϰοιλς), tra cui alcuni indirizzati a Costanzo, a Valente e Valentiniano II, a Teodosio, non tutti pervenuti. Ora, l'opera oratoria di Temistio, quale noi moderni leggiamo, comprende trentatrè orazioni, pubbliche e private, di cui due (o forse tre) incomplete. È molto probabile che gli altri tre (...) discorsi che Fozio ugualmente leggeva siano da identificare con orazioni perdute, di cui sopravvivono talune notizie: il discorso recitato nel 357 dinanzi al senato di Costantinopoli in occasione di un'ambasceria a Roma, il panegirico indirizzato nel 363 all'imperatore Giuliano per il suo quarto consolato e l'orazione sulla tolleranza religiosa indirizzata a Valente tra gli anni 375–376. Verrebbe, in questo modo, confermata la notizia della Bibliotheca circa l'esistenza di un corpus di complessivi trentasei discorsi ed in particolare rafforzata l'ipotesi, ventilata da taluni studiosi, secondo cui la silloge temistiana in nostro possesso corrisponderebbe in buona sostanza al ‘libro’ recensito da Fozio. (shrink)

The article fits in the new investigation trend about the classical models and sources of the Philagathos of Cerami’s Homilies, with particular focus on anonymous quotations and imitations of the Procopius of Gaza’s sophistic and rhetorical work. One of the most signifiant examples is the description of the Cappella Palatina in Palermo , for which Philagathos bore certainly in mind and adapted, besides other works, the Procopius’s Descriptio horologii. The conclusion is that Philagathos had at his disposal a whole now (...) lost manuscript with the Procopius’s work. (shrink)

L'attento esame della tradizione manoscritta delle epistole di Procopio di Gaza ha permesso al suo ultimo editore (A. Garzya) di pubblicare un corpus di 166 lettere, basato su una recensio molto più ampia rispetto a quella dei suoi predecessori e soprattutto più completo per le nuove lettere, venute alla luce nel corso dei secoli.

This paper defends an internalist perspective of selection based on the hypothesis that considers living evolutionary units as Maxwell's demons (MD) or Zurek's Information Gathering and Using Systems (IGUS). Individuals are considered as IGUS that extract work by means of measuring and recording processes. Interactions or measurements convert uncertainty about the environment (Shannon's information, H) into internalized information in the form of a compressed record (Chaitin's algorithmic complexity, K). The requirements of the model and the limitations inherent to its formalization (...) are discussed. This approach offers an alternative view to the causes of evolutionary variations which goes beyond the classical Lamarckian-Darwinian controversy. I argue that random variations only apply near-to-equilibrium at the time organisms have attained structural closure, and that a speed up of mutation rates that facilitates the production of directed variations occurs far-from-equilibrium due to organisms' openness to the surrounding conditions. However, real organisms are located somewhere between the above two cases and thus, operate at an intermediate stage where there is a maximum efficiency of H/K conversion. In consequence, IGUS keep their autonomy and evolving capacity by compromising between external circumstances and inner constraints. This compromise is made possible by closure regulation. Likewise, this model explains why nature has favored the selection of agents capable of selectively recording a partial description of their environment. (shrink)

This article explores the link between religion and politics, religious liberty and the rights of religious minorities, by focusing on the constitutions which Italian states adopted and discarded from 1796 to 1849. It concerns questions about the ‘national character’ and the rights and duties of the citizen, and argues that – far from being ‘an outlet’ for material discontent – questions of religious identity and pluralism were integral to the Risorgimento definition of liberty. In this context, the author explores also (...) the Mazzinian vision of a democratic republic inspired by an acephalous and non-hierarchical civil religion, similar to the Unitarian Transcendentalism practiced by some of his New York admirers – a far cry from the ‘religions of politics’ inspired by Saint Simon and Auguste Comte. (shrink)

This article explores the political thought of a leading Italian intellectual after his conversion from Jacobinism to liberalism. It shows the extent to which Foscolo was abreast of the then contemporary debate on constitutional government and nation-building. Moreover, it illustrates how he combined liberal with civic humanist and republican ideas, as well as idealism and Realpolitik in his perception of the problems faced by small nations struggling to be free in an era of international ideological conflict.

Il saggio ha come oggetto di riflessione quella struttura portante della vita, dell'esperienza umana che č la speranza. Come l'angoscia e l'attesa, essa vive nel futuro e qui viene esplorata nel campo delle relazioni umane, d'aiuto, di cura, in psichiatria, con connotazioni tipiche che si aggiungono a quelle filosofiche e teologiche sull'argomento. Quando la speranza rinasce dalle secche del mal di vivere, quando il medico stesso si č confrontato con le debolezze proprie e attraverso l'empatia si č messo anche in (...) ascolto del silenzio del paziente, del dialogare in silenzio, allora la speranza č come un ponte che ci fa uscire dalla nostra solitudine e diventa speranza creatrice. (shrink)