Cosmology is usually understood as an observational science, where experimentation plays no role. It is interesting, nevertheless, to change this perspective addressing the following question: what should we do to create a universe, in a laboratory? It appears, in fact, that this is, in principle, possible according to at least two different paradigms; both allow to circumvent singularity theorems, i.e. the necessity of singularities in the past of inflating domains which have the required properties to generate a universe similar to (...) ours. The first of them is substantially classical, and is built up considering solitons which collide with surrounding topological defects, generating an inflationary domain of space–time. The second is, instead, partly quantum and considers the possibility of tunnelling of past-non-singular regions of spacetime into an inflating universe, following a well-known instanton proposal. We are, here, going to review some of these models, as well as highlight possible extensions, generalizations and the open issues (as for instance the detectability of child universes and the properties of quantum tunnelling processes) that still affect the description of their dynamics. In doing so we will remark how the works on this subject can represent virtual laboratories to test the role that fundamental principles of physics (particularly, the interplay of quantum and general relativistic realms) played in the formation of our universe. (shrink)

Scale invariance is considered in the context of gravitational theories where the action, in the first order formalism, is of the form S=∫ L 1 Φ d 4 x+∫ L 2 $\sqrt{-g}$ d 4 x where the volume element Φ d 4 x is independent of the metric. For global scale invariance, a “dilaton” φ has to be introduced, with non-trivial potentials V(φ)=f 1 eαφ in L 1 and U(φ)=f 2 e 2αφ in L 2 . This leads to non-trivial (...) mass generation and a potential for φ which is interesting for inflation. Interpolating models for natural transition from inflation to a slowly accelerated universe at late times appear naturally. This is also achieved for “Quintessential models,” which are scale invariant but formulated with the use of volume element Φ d 4 x alone. For closed strings and branes (including the supersymmetric cases), the modified measure formulation is possible and does not require the introduction of a particular scale (the string or brane tension) from the begining but rather these appear as integration constants. (shrink)

In this article, based on a critical metaphor analysis, we identify and describe multimodal metaphors involving the human body and its conceptualizations in five auteur films of the 2010s. Studies on the human body in cinema have documented how it changes according to underlying ideologies. Our research focuses on the role of image schemas and metaphors as they embody meanings and sociocultural paradigms. Metaphors also frame how the body is conceptualized according to dominating ideological practices such as (a) commodification, (b) (...) the integration between artificial and organic, (c) dissatisfaction, (d) dynamics of beautification and idealization, and (e) politicization of the human body. We show how metaphors are creative tools to reframe meanings and representations of the body and how the body is a construct refashioned within the cinematic discourses of these films. (shrink)

https://revistes.uab.cat/enrahonar/article/view/v37-flichman.

There are a considerable number of logics that do not seem to share the same inferential principles. Intuitionistic logics do not include the law of the exclude.

Este ensaio introdutório faz uma breve apresentação do tratado de óptica atribuído a Euclides de Alexandria, inserindo-o no contexto das teorias sobre a visão formuladas pelas doutrinas filosóficas antigas. Ressalta-se o antagonismo entre a análise geométrica da visão, empreendida por Euclides, e as considerações filosóficas acerca dos processos físicos subjacentes à sensação visual. Pretende-se mostrar que o objeto da óptica euclidiana é a percepção visual daquilo que Aristóteles denomina "sensível comum". This introductory essay provides an abridged presentation of the optical (...) treatise attributed to Euclid of Alexandria, placing it in the context of theories about vision formulated by the ancient philosophical doctrines. I emphasize the antagonism between the geometric analysis of vision, undertaken by Euclid, and the philosophical considerations about the physical processes underlying visual sensation. In addition, I aim to show that the object of Euclidean optics is the visual perception of what Aristotle calls "common sensible". (shrink)

Al final de la Crítica de la facultad de juzgar, Kant aborda el problema de las pruebas de la existencia de Dios y revisa en detalle el argumento que a él le parece el único capaz de provocar verdadero asentimiento: la prueba moral. Se revisa el camino que sigue Kant para llegar, a través de su anál..

What accounts for the apocalyptic angst that is now so clearly present among Americans who do not subscribe to any religious orthodoxy? Why do so many popular television shows, films, and music nourish themselves on this very angst? And why do so many artists—from Coldplay to Tori Amos to Tom Wolfe—feel compelled to give it expression? It is tempting to say that America’s fears and anxieties are understandable in the light of 9/11, the ongoing War on Terror, nuclear proliferation, and (...) the seemingly limitless capacity of science to continually challenge our conceptions of the universe and ourselves. Perhaps, too, American culture remains so permeated by Protestant Christianity that even avowed skeptics cannot pry themselves from its grip. In _A Consumer’s Guide to the Apocalypse,_ Eduardo Velásquez argues that these answers are too pat. Velásquez’s astonishing thesis is that when we peer into contemporary artists’ creative depiction of our sensibilities we discover that the antagonisms that fuel the current cultural wars stem from the same source. Enthusiastic religions and dogmatic science, the flourishing of scientific reason and the fascination with mystical darkness, cultural triumphalists and multicultural ideologues are all sustained by the same thing: a willful commitment to the basic tenets of the Enlightenment. Velásquez makes his point with insightful readings of the music of Coldplay, Tori Amos, and Dave Matthews and the fiction of Michael Frayn’s _Copenhagen,_ Chuck Palahniuk’s _Fight Club,_ and Tom Wolfe’s _I Am Charlotte Simmons._ Written with grace and humor, and directed toward the lay reader, _A Consumer’s Guide to the Apocalypse_ is a tour de force of cultural analysis. (shrink)

According to Etchemendy, in attempting to offer an analysis of the modal features of the intuitive concept of logical consequence, Tarski has committed a modal fallacy. In this paper, I consider the thesis according to it is posible to analyze the modals properties of concept of logical consequence through of a generalization on set-theoretical interpretations. As is known, some philosophers have tried to argue for the transit from the general to the modal by showing that there are enough settheoretic interpretations (...) so as to be able to represent the modal features of the intuitive concept of consequence. As is also known, those people have encountered a lot of difficulties. In the present paper, I will try to show that those problems are related not with the specific possibility of accounting for the modal features by means of a set-theoretic notion of model but with the possibility of coming up with a precise mathematical theory for the concept of interpretation, and, as such, they can be solved by way of appealing to the usual solutions to this problem. (shrink)

El artículo presenta y analiza un conjunto de notas manuscritas de clases para cursos sobre geometría, dictados por David Hilbert entre 1891 y 1905. Se argumenta que en estos cursos el autor elabora la concepción de la geometría que subyace a sus investigaciones axiomáticas en Fundamentos de la geometría . Por un lado, afirmo que lo que caracteriza esta concepción de la geometría es: i) una posición axiomática abstracta o formal; ii) una posición empirista respecto del origen de la geometría (...) y de su lugar dentro de las distintas teorías matemáticas. Por otro lado, sostengo que el papel que Hilbert le confiere a la intuición geométrica en el proceso de axiomatización de esta teoría, permite apreciar claramente su oposición respecto de las posiciones formalistas con las que habitualmente es identificado. (shrink)

Since the 1980s poetry has effectively moved away from the printed page. From the early days of the minitel to the personal computer as a writing and reading environment, we have witnessed the development of new poetic languages. Video, holography, programming and the Web have further expanded the possibilities and the reach of this new poetry. Now, in a world of clones, chimeras, and transgenic creatures, it is time to consider new directions for poetry in vivo. Below I propose the (...) use of biotechnology and living organisms as a new realm of verbal creation. (shrink)

James H. Cone is without question the most important Black Theologian of the last century in U.S. theology. This essay is an engagement with his work, focusing in particular on the shifts from European theology, in his Black Theology & Black Power, to Black Aesthetic Religious production, in The Spirituals & The Blues, to The Cross and the Lynching Tree. The core theme of this essay is the entanglement of spiritual/religious colonization with production/invention of racial hierarchies that then became the (...) crucibles for the forging of racist imaginaries that entailed, authorized, enshrined, and sacralized white supremacy. The Janus face of this alchemy, however, was the production of a black religion of liberation that entailed decolonizing the “blackness” invented by the modern project of religious racist colonization. The essay considers how Cone’s works empowers us to think through the analogies between the process of the colonization of the indigenous peoples of the so-called “New World” and the “enslavement” of African peoples. The similarities have to do with the coupling of the colonization of imaginaries with the imposition of racial imaginaries, i.e. religious conquest is also a racial conquest, and conversely, racial conquest is also a religious conquest. (shrink)

Resumo: Não obstante as reconhecidas virtudes da edição crítica - Kritische Gesamtausgabe -, há o entendimento de que as duas primeiras seções dessa edição, que abrangem os escritos de juventude e filológicos, possuem lacunas. Uma dessas lacunas, contida na seção I, decorre da problemática decisão de não incorporar, em sua totalidade, os registros de aulas realizados por Nietzsche no período universitário, os Kollegnachschriften, valiosos tanto para estudos genéticos e de contextualização, como também para estudos de fontes. Muito embora o surgimento (...) da Digitale Faksimile Gesamtausgabe tenha dado início a um reparo dessa falha ao publicar todos os cadernos universitários de Nietzsche em formato fac-símile, os problemas de acesso a esses documentos não foram ainda completamente superados.: Notwithstanding the renowned virtues of the critical edition - Kritische Gesamtausgabe - it is known that the first two sections of this edition, comprising the youth and philological writings, have gaps. One of these gaps, contained in section I, comes from the troublesome decision of not incorporating, in its entirety, the class notes made by Nietzsche in the University period, the Kollegnachschriften, valuable both for genetic and contextualization studies, as well as for the study of sources. Even though the emergence of the Digitale Faksimile Gesamtausgabe has started to address this flaw by publishing all of Nietzsche's University notebooks in facsimile format, the problems of accessing these documents have not yet been completely overcome. (shrink)

Normal 0 21 false false false ES X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} The idea that is possible to produce new forms of subjectivity, trough an intelligent use of expression, has been recurring in modern and contemporary literature. Fiction, in this sense, has played a central role in the (des)construction (...) of national identities. Even if programmatically he always stud up on the antipodes of literary commitment, in his youth Borges saw in art a «political compensatory function » of this type. Namely, he claimed that, in order to escape from the tight spots in which we get enclosed, literature can help us in the work of reinvent ourselves as individual and collective subjects. Using concepts from Deleuze and Foucault, Ranciére and Burgoyne, this article tries to analyze that secret borgean politics, as a case study of a wider aspiration of literature to operate on the agency of the forms we have to say «I» and «Us». (shrink)

In this article I analyze the class- and cultural-based exclusion produced by the Chilean neoliberal educational reform, carried out during the period from 1990 to 2010. This educational reform follows the same neoliberal model applied to the economy of the country. Although some indicators improved in relation to coverage and public spending in education, the performance gap among social groups increased. In addition, at a cultural level, the reform promoted the value of individual productivity negatively affecting some of the cultural (...) behaviors developed by low-income groups as a consequence of and as reaction to the exclusion they suffer. Namely, by stressing the notions of human capital and quality education, the reform has tended to reinforce these students? fatalism, and limit the scope of the organizations they form to improve their academic and social opportunities. (shrink)

I analyze some traditional distinctions around euthanasia. In contrast to those who most discuss the justification of active versus passive, or direct versus indirect euthanasia. I claim, following and expanding a Holly Smith´s argument, that the possibility of active and/or direct euthanasia cannot be morally excluded, once we have accepted passive and/or indirect euthanasia, even though we assume the asymmetry between killing and letting die, or between killing someone intentionally as a means and doing that as an undesired side-effect . (...) I evaluate then some objections and limits of the argument and make a shorter reference to the problem of voluntariness. (shrink)

Belnap and Gupta have recently maintained that truth is a circular concept: its extension cannot be established without being previously hypothesized. This has led Yaqub to claim that the circular character in question cannot be made compatible with the thesis that semantic properties tlre supervenient ones. Belnap and Gupta have explicitly denied sitch a claim any plausibility. In this paper, I offir some new arguments in support of Yaqub 's position. Such arguments are based on an analysis of some aspects (...) of Belnap and Gupta's theory that, as for as I know, had not been considered before. (shrink)

I try to show that Steiner’s theory has very implausible normative consequences since it does not accept the prima facie character or rights. This theory is unable to solve the conflicts of interests in which the only intuitively plausible solution consists in overriding someone’s rights.

Este ensayo propone las tesis siguientes. i) Se ha producido un cambio de conciencia de nuestro pasado filosófico en los últimos decenios. ii) A ello ha contribuido tanto la asimilación de la filosofía continental y anglosajona como la investigación sobre la filosofía española llevada a cabo en las universidades de Madrid, Granada, Murcia, Oviedo, Salamanca, entre otras. iii) La filosofía española tiene un futuro prometedor tanto en investigación como en docencia.

ABSTRACT In this article I set out to develop an alternative analysis of national borders that grants them moral and politically normative standing while at the same time showing the limits of such merely normative analytics. The aim is to develop a genealogical analysis of the U.S. border, which is taken here as an exemplar of how not to implement borders. The first section develops what will be called here the “mobile panopticon,” one that colonizes the so-called heartland, making of (...) all citizens potentially extraditable subjects. The second section argues that the assemblage of institutions that make of the border not simply a geographic marker has become deeply enmeshed with the United States' peculiar institutions of hyperpenality and criminal branding, thus leading to the expansion and exacerbation of what I have called the “ethnoracial prison industrial complex.” This analysis then offers warrants for the argument that the U.S. border is no longer a neutral arbiter of sovereignty but, instead, has become a “genocidal machine.” In the closing section an engagement with Casey and Watkins's recent work on the U.S. border offers a bridge to the genealogical claim that the U.S. border is in fact a thanatological dispositif. (shrink)

El artículo presenta una interpretación del abordaje axiomático temprano a la geometría de David Hilbert, i.e., el desarrollado entre 1891 y 1905. Se sostiene que diversos aspectos de este abordaje, a primera vista problemáticos, se pueden comprender mejor si se contrastan con una de sus influencias más importantes en este periodo: la teoría pictórica [Bildtheorie] de Heinrich Hertz. En particular se argumenta que un análisis de la concepción axiomática de Hilbert a la luz de la teoría de Hertz permite aliviar (...) ciertas tensiones en la concepción hilbertiana; más precisamente, las tensiones que surgen de mantener, al mismo tiempo, una posición axiomática abstracta o formal y una concepción empirista de la geometría, que la considera una ciencia natural. (shrink)

RESUMO Duas versões contemporâneas do contextualismo radical em filosofia da linguagem, uma defendida por François Recanati e outra por Charles Travis, centram sua crítica à distinção tradicional entre semântica e pragmática na categoria de dito, tal como descrita por Paul Grice. Ambas as versões se contrapõem à ideia de que o que é dito é determinado plenamente pelo significado convencional da sentença proferida acrescido da fixação do valor de elementos indexicais. Ambas sustentam, a partir desta crítica, que uma enunciação não (...) necessariamente expressa um conteúdo proposicional associado ao significado literal da sentença. Neste artigo, busco mostrar que a partilha desta tese negativa geral esconde divergências importantes. Centrando minha análise na reformulação feita por Recanati da categoria de what is said, busco mostrar como ela se organiza a partir da preservação e radicalização de princípios essenciais da pragmática griceana, bem como da ideia de que elementos subsentencias possuem um conteúdo proposicional mínimo atrelado à sua significação. Em seguida, busco apontar como a negação total da pragmática griceana e deste mínimo proposicional por Travis não apenas revela uma divergência profunda em relação a Recanati, mas gera problemas para a tentativa de reestruturação da noção de what is said. ABSTRACT François Recanati and Charles Travis have questioned the traditional distinction between semantics and pragmatics by criticizing Grice’s notion of what is said. They are both opposed to the idea that what is said can be read in terms of the conventional meaning of the uttered sentence. Both authors share the thesis according to which what is said does not necessarily put forward a propositional content equivalent to the literal meaning of the uttered sentence. My objective in this paper is to point out important differences between these two positions that are sometimes referred to indistinctively as Radical Contextualism. The paper is centered on the analysis of Recanati’s amendment of the notion of what is said. I first show how his reconstruction of this notion is motivated by the preservation of Grice’s attempt to explain communication in terms of the intention of the speaker. I then proceed to point out how his contextualism admits the idea of a minimal propositional content attached to the meaning of subsentential components. I conclude by arguing that Travis’ rejection of Grice’s whole framework goes against Recanati’s attempt to amend Grice’s notion of what is said. (shrink)

I present one specific way of creating problematic situations: generating perplexity. A teacher with a personal history marked by a struggle to conceptualise the words of the professor or of the book, will have paved his way. The teacher develops his subject clearly. When the students say they understand, it is time to show an apparently paradoxical situation. Perplexity appears. The teacher again explains the subject and all accept again that they understand perfectly. But the difficulty doesn't disappear. The debate (...) begins. The discussion creates murmuring, noise. The perfect moment has arrived. A silent classroom would have meant the teacher's failure. Second step: "rewinding". To go back and look for the failure. The students should discover the failure, helped by the teacher. The second step finishes. Perplexities cannot always be solved, especially in the case of philosophy. When they arise from diverse proposals for a solution, it would be bad teaching to present a single way of solving the problem. Students should know that in these cases the debates are open and the discussion continues. In other cases it is just a conceptual failure in construing the corresponding notion, so the discussion should be closed once the failure is found. (shrink)

Sainsbury 2005 and 2009 offers a theory of empty names that purports to account for the content and truth-value of all utterances involving them. The goal is to do this while offering a homogenous semantic treatment: both empty and nonempty names make the same kind of contribution to truth-values. The account is based on a new theory of reference that purports to be an alternative among nondescriptivist accounts. According to the new theory, there is reference even without referents. In this (...) paper I argue that the theory does not offer a homogeneous semantics for names and that, thus, it fails to offer a more satisfactory alternative to the theories already available. I conclude by briefly describing a way in which a theory could in fact offer such homogeneous semantics for names via a cognitive theory of empty names. (shrink)

Resumen En este artículo defiendo la postura según la cual el republicanismo -en comparación con otras nociones o motivos centrales- no se ha interpretado como uno de los rasgos que caracteriza a la filosofía jurídica y política de Kant como un todo. Una posible razón es que el republicanismo kantiano no ha ocupado un lugar destacado dentro de las narrativas republicanas, ya sea históricas o sistemáticas, que son más dominantes en las discusiones contemporáneas. A mi parecer, esto es así porque (...) hay características innovadoras en la empresa republicana kantiana que se encuentran en tensión con otros proyectos republicanos de otra índole. Aquí discuto algunos de los rasgos distintivos del proyecto de Kant en lo que atañe a concepciones suyas sobre el estado de derecho, la ciudadanía, la autoridad política, la libertad de expresión y el derecho internacional, con el fin de señalar que estas son parte integral de una teoría política y legal que todavía es atractiva y sugerente.In this paper, I defend the stance that republicanism -in comparison to other central notions- has not been interpreted as one of the main traits that characterize Kant’s legal and political philosophy. A plausible reason for this is that Kantian republicanism has not occupied a prominent place in the republican narratives, historiographical or systematic, that are dominant in contemporary discussions. To my mind, the reason for this is that some innovative characteristics in the Kantian republican enterprise are at odds with other republican philosophical projects. Here I discuss some distinctive traits of Kant’s project regarding his conceptions of the rule of law, citizenship, political authority, free speech, and international law with the aim of showing that they are an integral part of a political and legal theory that is still attractive and compelling. (shrink)

In this paper I will attempt to show how incommensurability between theories is usually manifested, framing this notion in a sense similar to the Kuhnian one in certain aspects, though very different in others. Further, I will show that it is possible, and desirable, to rid Kuhn’s thesis of the idea that in many important theories a certain part of the theoretical nucleus partially contains in a more or less vague sense, synthetic a priori or even analytic statements. Alternatively, I (...) present a motive for the change of meaning in the basic terms of a theory wherein fundamental laws maintain their synthetic a posteriori character. Incommensurability in this case has to do with the change of lexicon for internal properties, independently of whether or not there is a change in the meaning of the primitive terms of the theory. (shrink)

The aim of this paper is to show that it’s not a good idea to have a theory of truth that is consistent but ω-inconsistent. In order to bring out this point, it is useful to consider a particular case: Yablo’s Paradox. In theories of truth without standard models, the introduction of the truth-predicate to a first order theory does not maintain the standard ontology. Firstly, I exhibit some conceptual problems that follow from so introducing it. Secondly, I show that (...) in second order theories with standard semantics the same procedure yields a theory that doesn’t have models. So, while having an ω- inconsistent theory is a bad thing, having an unsatisfiable theory of truth is actually worse. This casts doubts on whether the predicate in question is, after all, a truthpredicate for that language. Finally, I present some alternatives to prove an inconsistency adding plausible principles to certain theories of truth. (shrink)

In different papers, Carnielli, W. & Rodrigues, A., Carnielli, W. Coniglio, M. & Rodrigues, A. and Rodrigues & Carnielli, present two logics motivated by the idea of capturing contradictions as conflicting evidence. The first logic is called BLE and the second—that is a conservative extension of BLE—is named LETJ. Roughly, BLE and LETJ are two non-classical logics in which the Laws of Explosion and Excluded Middle are not admissible. LETJ is built on top of BLE. Moreover, LETJ is a Logic (...) of Formal Inconsistency. This means that there is an operator that, roughly speaking, identifies a formula as having classical behavior. Both systems are motivated by the idea that there are different conditions for accepting or rejecting a sentence of our natural language. So, there are some special introduction and elimination rules in the theory that are capturing different conditions of use. Rodrigues & Carnielli’s paper has an interesting and challenging idea. According to them, BLE and LETJ are incompatible with dialetheia. It seems to show that these paraconsistent logics cannot be interpreted using truth-conditions that allow true contradictions. In short, BLE and LETJ talk about conflicting evidence avoiding to talk about gluts. I am going to argue against this point of view. Basically, I will firstly offer a new interpretation of BLE and LETJ that is compatible with dialetheia. The background of my position is to reject the one canonical interpretation thesis: the idea according to which a logical system has one standard interpretation. Then, I will secondly show that there is no logical basis to fix that Rodrigues & Carnielli’s interpretation is the canonical way to establish the content of logical notions of BLE and LETJ. Furthermore, the system LETJ captures inside classical logic. Then, I am also going to use this technical result to offer some further doubts about the one canonical interpretation thesis. (shrink)

This paper defends the Quine-Putnam mathematical indispensability argument against two objections raised by Penelope Maddy. The objections concern scientific practices regarding the development of the atomic theory and the role of applied mathematics in the continuum and infinity. I present two alternative accounts by Stephen Brush and Alan Chalmers on the atomic theory. I argue that these two theories are consistent with Quine’s theory of scientific confirmation. I advance some novel versions of the indispensability argument. I argue that these new (...) versions accommodate Maddy’s history of the atomic theory. Counter-examples are provided regarding the role of the mathematical continuum and mathematical infinity in science. (shrink)

In Republic 4, Plato’s Socrates argues that there are three elements in the soul: the rational, the spirited, and the appetitive. This paper focuses on the argument distinguishing spirit from appetite in the story of Leontius. I shall argue that the rational element first opposes Leontius’ appetite and, when appetite overpowers reason, then Leontius’ spirited part opposes the appetitive. Consequently, there is a kind of disgust that would be appropriately characterized as rational; and, drawing on this consequence, I suggest that (...) the primary target of early ethical education is the rational element of the soul. (shrink)

i want to begin by thanking my good friend Richard Hart for the invitation to be part of this wonderful panel in which we are honoring while also being challenged by the work of Charles Johnson to think differently about our discipline. I also want to thank the organizers of SAAP for hosting this important series of lectures, in which we are invited to engage the work of thinkers who challenge us to think differently because they either come to our (...) problems from different disciplines and fields, or teach us to see their problems as ours. From the outset, I must admit my trepidation at engaging Johnson’s work, which spans nearly half a century and a variety of genres. Johnson began as a cartoonist, then became a... (shrink)

In 1997, I introduced the concept and the phrase “bio art”, originally in relation to my artwork “Time Capsule”. This work approached the problem of wet interfaces and human hosting of digital memory through the implantation of a microchip. The work consisted of a microchip implant, seven sepia-toned photographs, a live television broadcast, a webcast, interactive telerobotic webscanning of the implant, a remote database intervention, and additional display elements, including an X-ray of the implant. While “bio art” is applicable to (...) a large gamut of in vivo works that employ biological media, made by myself and others, in 1998, I started to employ the more focused term “transgenic art”. Republished in Ars Electronica ‘99—Life Science, ed. Gerfried Stocker and Christine Schopf, 289–296.) to describe a new art form based on the use of genetic engineering to create unique living beings. Art that manipulates or creates life must be pursued with great care, with acknowledgment of the complex issues it raises and, above all, with a commitment to respect, nurture, and love the life created. I have been creating and exhibiting a series of transgenic artworks since 1999. I have also been creating bio art that is not transgenic. The implications of this ongoing body of work have particular esthetic and social ramifications, crossing several disciplines and providing material for further reflection and dialog. What follows is an overview of theses works, the issues they evoke, and the debates they have elicited. (shrink)

In this paper, I start by describing and examining the main results about the option of formalizing the Yablo Paradox in arithmetic. As it is known, although it is natural to assume that there is a right representation of that paradox in first order arithmetic, there are some technical results that give rise to doubts about this possibility. Then, I present some arguments that have challenged that Yablo’s construction is non-circular. Just like that, Priest (1997) has argued that such formalization (...) shows that Yablo’s Paradox involves implicit circularity. In the same direction, Beall (2001) has introduced epistemic factors in this discussion. Even more, Priest has also argued that the introduction of infinitary reasoning would be of little help. Finally, one could reject definitions of circularity in term of fixed-point adopting non-well-founded set theory. Then, one could hold that the Yablo paradox and the Liar paradox share the same non-well-founded structure. So, if the latter is circular, the first is too. In all such cases, I survey Cook’s approach (2006, forthcoming) on those arguments for the charge of circularity. In the end, I present my position and summarize the discussion involved in this volume. En este artículo, describo y examino los principales resultados vinculados a la formalización de la paradoja de Yablo en la aritmética. Aunque es natural suponer que hay una representación correcta de la paradoja en la aritmética de primer orden, hay algunos resultados técnicos que hacen surgir dudas acerca de esta posibilidad. Más aún, presento algunos argumentos que han cuestionado que la construcción de Yablo no sea circular. Así, Priest (1997) ha argumentado que la formalización de la paradoja de Yablo en la aritmética de primer orden muestra que la misma involucra implícitamente circularidad. En la misma dirección, Beall (2001) ha introducido factores epistémicos en esta discusión. Más aún, Priest ha también argumentado que la introducción de razonamiento infinitario como complemento de la formalización en la aritmética sería de poca ayuda. Finalmente, se podría rechazar todo intento de dar definiciones de circularidad en términos de puntos fijos adoptando teoría de conjuntos infundados. Entonces, se podría sostener que la paradoja de Yablo y la del mentiroso comparten la misma estructura infundada. Por eso, si la última es circular, también lo es la primera. En todos los casos, presento el enfoque de Roy Cook (2006, en prensa) sobre estos argumentos que atribuyen circularidad a la construcción de Yablo. En el final, presento mi posición y un breve resumen de la discusión involucrada en este volumen. (shrink)

This thesis consists in six articles and a comprehensive summary. • The pourpose of the summary is to introduce the AGM theory of belief change and to exemplify the diversity and significance of the research that has been inspired by the AGM article in the last 25 years. The research areas associated with AGM was divided in three parts: criticisms, where we discussed some of the more common criticisms of AGM. Extensions where the most common extensions and variations of AGM (...) are presented and applications where we provided an overview of applications and connections with other areas of research. • Article I elaborates on the connection between partial meet contractions [AGM85] and kernel contractions [Han94a] in belief change theory. Also both functions are equivalent in belief sets, there are notequivalent in belief bases. A way to define incision functions from selection functions and vice versa is presented. It is explained under which conditions there are exact correspondences between selection and incision functions so that the same contraction operations can be obtained by using either of them. • Article II proposes an axiomatic characterization for ensconcement-based contraction functions, belief base functions proposed byWilliams and relates this function with other kinds of base contraction functions. • Article III adapts the Fermé and Hansson model of Shielded Contraction [FH01] as well as Hansson et all Credibility-Limited Revision [HFCF01] for belief bases, to join two of the many variations of the AGM model [AGM85], i.e. those in which knowledge is represented through belief bases instead of logic theories, and those in which the object of the epistemic change does not get the priority over the existing information as it is the case in the AGM model. • Article IV introduces revision by comparison a refined method for changing beliefs by specifying constraints on the relative plausibility of propositions. Like the earlier belief revision models, the method proposed is a qualitative one, in the sense that no numbers are needed in order to specify the posterior plausibility of the new information. The method uses reference beliefs in order to determine the degree of entrenchment of the newly accepted piece of information. Two kinds of semantics for this idea are proposed and a logical characterization of the new model is given. • Article V focuses on the extension of AGM that allows change for a belief base by a set of sentences instead of a single sentence. In [FH94], Fuhrmann and Hansson presented an axiomatic for Multiple Contraction and a construction based on the AGM Partial Meet Contraction. This essay proposes for their model another way to construct functions: Multiple Kernel Contraction, that is a modification of Kernel Contraction,proposed by Hansson [Han94a] to construct classical AGM contractions and belief base contractions. • Article VI relates AGM model with the DFT model proposed by Carlos Alchourrón [Alc93]. Alchourrón devoted his last years to the analysis of the notion of defeasible conditionalization. His definition of the defeasible conditional is given in terms of strict implication operator and a modal operator f which is interpreted as a revision function at the language level. This essay points out that this underlying revision function is more general than AGM revision. In addition, a complete characterization of that more general kind of revision that permits to unify models of revision given by other authors is given. (shrink)

EI tratamiento que hace Descartes deI ‘yo pienso-existo’, lejos de todo proceder inferencial, nos muestra la condición propia de un pensamiento que es “res cogitans”: mi ‘asistir a’ como condición originaria de la fuerza de realidad que soy. Así, el conocimiento que tengo de mí como pensamiento es prejudicativo: no necesita afirmación alguna, sino que expresa prevolitivamente el ser-siendo, o acto, que soy como pensamiento, y que no se extiende a mi cuerpo. The treatment Deseartes does of ‘I think - (...) I exist’ far from any inference, shows the conditioning which is proper of a “res cogitans” thought: my ‘attendance to’ as the originary conditioning of the strength of reality which I am. Thus, the Knowledge I have of myself as thought is prejudicative: it needs no affirmation but it expresses prevolitionally the ‘to be-being’, or act, that I am as thought and which does not extend to my body. (shrink)

Fishkin claims that the three liberals principles concerning assignment of social positions constitute a “trilemma”: the realization of any two of these principles precludes the realization of the third. In this paper, I try to prove that this is the case, only if these principles are interpreted in an extreme way. Liberalism, however, has strong reasons to reject such interpretation of each of these principles. Moreover, these reasons are independent from the question of whether their conjunction may be conflictive or (...) not. If we assume moderate versions of the principles , the trilemma disappears or, at least, becomes much weaker. (shrink)

The present paper attempts to clarify the meaning of consumption in Hegel’s philosophy. For this purpose I start from the full-blown concept of consumption, as it appears in the Philosophy of Right, in the section on the system of needs. Afterwards I present the less developed form of consumption in the Phenomenology of Spirit, as the first spiritual manifestation of consumption. In the conclusion I explain why consumption in the Philosophy of Right should be understood as the fully developed form (...) of consumption, insofar as the Philosophy of Right presupposes a full intersubjectivity, whereas the Phenomenology of Spirit does not. Finally, I enumerate the contributions of the Phenomenology of Spirit for the understanding of consumption in the system of needs of the Philosophy of Right. (shrink)

The possible impact of general philosophical ideas on the choice of research subject in mathematics is the topic of this paper. I examine a specific case in which the philosophical background is provided by a discussion on the role of language in science, which is associated with the work of Condillac. The area of mathematics considered is functional equations, a difficult chapter of mathematical analysis that began to be developed between the end of the eighteenth and the beginning of the (...) nineteenth century. The researcher is Charles Babbage , a young British mathematician deeply interested in the recent work of French mathematicians and philosophers of science. (shrink)

In this article I compare the theories of legal punishment found in Kant’s and Hegel’s philosophy of right. The thesis I defend is that, at least in this subject matter, the positions of Kant and Hegel should not be read as standing in direct opposition, but rather as belonging to the family of retributivist penal theo-ries. The comparative analysis I put forward aims to shed light both on structural aspects of their philosophy of right as a whole and on some (...) of their customary strategies of judicial-philosoph-ical justification. The discussion hereby presented will show, however, some limitations of both theories and broadly sketch, as a systematic solution to such difficulties, a reading in which Kant’s and Hegel’s philosophical conceptions of legal punish-ment are deemed as complementary ones. (shrink)

We respond to criticism of our paper “Paradox in Wave-Particle Duality for Non-Perturbative Measurements”. We disagree with Steuernagel’s derivation of the visibility of the Afshar experiment. To calculate the fringe visibility, Steuernagel utilizes two different experimental situations, i.e. the wire grid in the pattern minima and in the pattern maxima. In our assessment, this procedure cannot lead to the correct result for the complementarity properties of a wave-particle in one particular experimental set-up.

How do scientists and theologians conceive new ways of mapping the world? Can parallels be found between the images they use, or the models they offer when new questions arise? I will explore Albert Einstein’s views on scientific imagination with the goal of contributing – at least within his own perspective – to answering these questions. Drawing on McGrath, I will first briefly describe Einstein’s desire for a unified vision of reality, the links between science and a ‘cosmic religion’, and (...) his overall ideas on transcendence. I will later further develop Einstein’s fundamental features of a cosmovision that grounds his work in physics, and encompasses his philosophical views on human existence and his general way of seeing the world. I will focus on Ideas and Opinions (1982), which will allow me to set the broad picture of his theory of everything and, at the same time, bring up the central aspects of Einstein’s ideas on the scientific imagination. Finally, I will briefly summarise my conclusions concerning Einstein’s views on the nature of scientific imagination as a mental device, especially regarding its twofold role in what I call ‘visual image play’ and conceptualization. (shrink)