The object of this paper is to make a study of four systems of modal logic (S4, S5, and their intuitionistic analogues IM4 and IM5) with the techniques of the theory of abstract logics set up by Suszko, Bloom, Brown, Verdú and others. The abstract concepts corresponding to such systems are defined as generalizations of the logics naturally associated to their algebraic models (topological Boolean or Heyting algebras, general or semisimple). By considering new suitably defined connectives and by distinguishing between (...) having the rule of necessitation only for theorems or as a full inference rule (which amounts to dealing with all filters or with open filters of the algebras) we are able to reduce the study of a modal (abstract) logic L to that of two nonmodal logics L - and L + associated with L. We find that L is "of IM4 type" if and only if L - and L + are both intuitionistic and have the same theorems, and logics of type S4, IM5 or S5 are obtained from those of type IM4 simply by making classical L -, L + or both. We compare this situation with that found in recent approaches to intuitionistic modal logic using birelational models or using higher-level sequent-systems. The treatment of modal systems with abstract logics is rather new, and in our way to it we find several general constructions and results which can also be applied to other modal systems weaker than those we study in detail. (shrink)
This paper continues a dialogue that began with an article by Jeffrey Koperski entitled “Two Bad Ways to Attack Intelligent Design and Two Good Ones,” published in the June 2008 issue of Zygon: Journal of Religion and Science. In a response article, Christopher Pynes argues that ad hominem arguments are sometimes legitimate, especially when critiquing Intelligent Design (2012). We show that Pynes’s examples only apply to matters of testimony, not the kinds of arguments found in the best defenses of ID.
Based on the assumption that consumers will reward firms for their support of social programs, many organizations have adopted corporate social responsibility (CSR) practices. Drawing on social identity theory, a model of influence of CSR on loyalty is developed and tested using a sample of real consumers. Results demonstrate that CSR initiatives are linked to stronger loyalty both because the consumer develops a more positive company evaluation, and because one identifies more strongly with the company. Moreover, identity salience is shown (...) to play a crucial role in the influence of CSR initiatives on consumer loyalty when this influence occurs through consumer-company identification. A strong identifier is not necessarily in a constant state of salience, but activating identity salience of a particular consumer social identity (a company) will affect consumer reactions to product stimuli, increasing consumer loyalty. (shrink)
The extent to which people identify with an organization is dependent on the attractiveness of the organizational identity, which helps individuals satisfy one or more important self-definitional needs. However, little is known about the antecedents of company identity attractiveness (IA) in a consumer–company context. Drawing on theories of social identity and organizational identification, a model of the antecedents of IA is developed and tested. The findings provide empirical validation of the relationship between IA and corporate associations perceived by consumers. Our (...) results demonstrate that the Corporate Social Responsibility (CSR) contribution to company IA is much stronger than that of Corporate Ability (CA). This may be linked to increasing competition and of decreasing CA-based variation in the marketplace. (shrink)
This paper focuses on the 1986 Amendments to the False Claims Act of 1863, which offers whistle-blowers financial rewards for disclosing fraud committed against the U.S. government. This law provides an opportunity to examine underlying assumptions about the morality of whistle-blowing and to consider the merits of increased reliance on whistle-blowing to protect the public interest. The law seems open to a number of moral objections, most notably that it exerts a morally corrupting influence on whistle-blowers. We answer these objections (...) and argue that the law is not objectionable on these grounds. Since there are no compelling moral objections to the law, it is appropriate and acceptable to judge the law in terms of its economic costs and benefits. We assess the most salient of these and conclude that the benefits outweigh the costs. We suggest that a mechanism similar to the Act should be considered for protecting stockholders’ interests in the private sector. We conclude by making several proposals for improving the existing legislation. (shrink)
In this paper we study the relations between the fragment L of classical logic having just conjunction and disjunction and the variety D of distributive lattices, within the context of Algebraic Logic. We prove that these relations cannot be fully expressed either with the tools of Blok and Pigozzi's theory of algebraizable logics or with the use of reduced matrices for L. However, these relations can be naturally formulated when we introduce a new notion of model of a sequent calculus. (...) When applied to a certain natural calculus for L, the resulting models are equivalent to a class of abstract logics (in the sense of Brown and Suszko) which we call distributive. Among other results, we prove that D is exactly the class of the algebraic reducts of the reduced models of L, that there is an embedding of the theories of L into the theories of the equational consequence (in the sense of Blok and Pigozzi) relative to D, and that for any algebra A of type (2,2) there is an isomorphism between the D-congruences of A and the models of L over A. In the second part of this paper (which will be published separately) we will also apply some results to give proofs with a logical flavour for several new or well-known lattice-theoretical properties. (shrink)
In this paper we study the relations between the fragment L of classical logic having just conjunction and disjunction and the variety D of distributive lattices, within the context of Algebraic Logic. We prove that these relations cannot be fully expressed either with the tools of Blok and Pigozzi's theory of algebraizable logics or with the use of reduced matrices for L. However, these relations can be naturally formulated when we introduce a new notion of model of a sequent calculus. (...) When applied to a certain natural calculus for L, the resulting models are equivalent to a class of abstract logics (in the sense of Brown and Suszko) which we call distributive. Among other results, we prove that D is exactly the class of the algebraic reducts of the reduced models of L, that there is an embedding of the theories of L into the theories of the equational consequence (in the sense of Blok and Pigozzi) relative to D, and that for any algebra A of type (2,2) there is an isomorphism between the D-congruences of A and the models of L over A. In the second part of this paper (which will be published separately) we will also apply some results to give proofs with a logical flavour for several new or well-known lattice-theoretical properties. (shrink)
We propose compassion as a new model for moral education. The insufficiency of Kohlberg's cognitive model for such education is shown, as is the absence of compassion in dialogical ethics. We review briefly some authors who have treated the theme of compassion and propose the development of empathy as a foundation for educating for compassion. Specifically, we propose emotional guidance and observation-based tasks. Socio-affective experiences, the acquisition of social skills and the awakening of moral awareness are resources which enable the (...) development of empathy. To put oneself in someone else's place, feel for them, sympathize with them, is not merely the result of an exclusive intellectual exercise; rather it is linked to a moral sensibility. A moral engagement, a moral stance in the face of tragedy, requires compassion for the commitment to be effective. To educate in compassion is to educate for a moral life. (shrink)
In our previous paper Algebraic Logic for Classical Conjunction and Disjunction we studied some relations between the fragmentL of classical logic having just conjunction and disjunction and the varietyD of distributive lattices, within the context of Algebraic Logic. The central tool in that study was a class of closure operators which we calleddistributive, and one of its main results was that for any algebraA of type (2,2) there is an isomorphism between the lattices of allD-congruences ofA and of all distributive (...) closure operators overA. In the present paper we study the lattice structure of this last set, give a description of its finite and infinite operations, and obtain a topological representation. We also apply the mentioned isomorphism and other results to obtain proofs with a logical flavour for several new or well-known lattice-theoretical properties, like Hashimoto's characterization of distributive lattices, and Priestley's topological representation of the congruence lattice of a bounded distributive lattice. (shrink)
The present paper is intended as an analysis of North-South relationships from the perspective of globalisation, an economic system that generates the dependency and exploitation of the South out of necessity. This phenomenon is conditioning the life of individuals and peoples and as a result local approaches to current problems are no longer viable. As an alternative to this state of affairs, the ethic of compassion, understood as a political compromise demanding a new paradigm in economic, political and cultural relationships, (...) is posited as the moral instrument through which human beings may be liberated from misery and suffering. Finally, the educational implications of such an approach are discussed. These basically include the need to place the learning of values at the core of the educational process as an alternative to those conceptions that reduce education to a mere acquisition of knowledge. (shrink)
In this paper we prove the equivalence between the Gentzen system G LJ*\c , obtained by deleting the contraction rule from the sequent calculus LJ* (which is a redundant version of LJ), the deductive system IPC*\c and the equational system associated with the variety RL of residuated lattices. This means that the variety RL is the equivalent algebraic semantics for both systems G LJ*\c in the sense of [18] and [4], respectively. The equivalence between G LJ*\c and IPC*\c is a (...) strengthening of a result obtained by H. Ono and Y. Komori [14, Corollary 2.8.1] and the equivalence between G LJ*\c and the equational system associated with the variety RL of residuated lattices is a strengthening of a result obtained by P.M. Idziak [13, Theorem 1].An axiomatization of the restriction of IPC*\c to the formulas whose main connective is the implication connective is obtained by using an interpretation of G LJ*\c in IPC*\c. (shrink)
Background: The development of implicit tests for measuring biases and behavioral predispositions is a recent development within psychology. While such tests are usually researched within a social-cognitive paradigm, behavioral researchers have also begun to view these tests as potential tests of conditioning histories, including in the sexual domain. Objective: The objective of this paper is to illustrate the utility of a behavioral approach to implicit testing and means by which implicit tests can be built to the standards of behavioral psychologists. (...) Design: Research findings illustrating the short history of implicit testing within the experimental analysis of behavior are reviewed. Relevant parallel and overlapping research findings from the field of social cognition and on the Implicit Association Test are also outlined. Results: New preliminary data obtained with both normal and sex offender populations are described in order to illustrate how behavior-analytically conceived implicit tests may have potential as investigative tools for assessing histories of sexual arousal conditioning and derived stimulus associations. Conclusion: It is concluded that popular implicit tests are likely sensitive to conditioned and derived stimulus associations in the history of the test-taker rather than ‘unconscious cognitions’, per se. Keywords: implicit association test; function acquisition speed test; relational frame theory; stimulus equivalence; sex offenders; sexual interests (Published: 15 March 2012) Citation: Socioaffective Neuroscience & Psychology 2012, 2 : 17335 - DOI: 10.3402/snp.v2i0.17335. (shrink)
Este trabalho pretende realizar uma reflexão crítica sobre sentido moderno da justiça procedimental, desenvolvendo uma nova hermenêutica da justiça a partir da alteridade das vítimas. PALAVRAS-CHAVE – Justiça procedimental. Ética. Hermenêutica. Alteridade.
En 1670, el autor español Juan Caramuel publicó en Italia el segundo tomo de una magna obra, Mathesis biceps (publicada en latín), sobre el saber matemático de su época. En el mismo se incluía un capítulo (un "sintagma" según el propio Caramuel), titulado Kybeia ("juegos de dados" en griego), donde el autor introduce su idea del origen del juego y resuelve algunos problemas relacionados con los mismos, convirtiéndose en una de las obras tempranas sobre cálculo de probablidades. En este texto (...) se da un repaso a los antecedentes al trabajo de Caramuel relacionados con el cálculo de probabilidades, se analiza punto por punto la aportación de este autor al nuevo cálculo en su Kybeia, y se añade la traducción al castellano del mismo. (shrink)
Fue en Inglaterra donde apareció por vez primera un individualismo virtuoso comprometido con la defensa pública de la libertad frente a la amenaza del absolutismo. Allí surgió un discurso político liberal-republicano que defendió que el bien público y el interés privado fueran de la mano. Así, el liberalismo nació como un discurso público y privado de la virtud individual que tenía la vocación de frenar cualquier arrogancia despótica. Pero en la segunda mitad del siglo XX una tendencia neoliberal y libertaria (...) convirtió el mercado en una abstracción dogmática que justificaba un egoísmo descontrolado y sin límites. En Liberales, José María Lassalle expone la necesidad de que el liberalismo del siglo XXI vuelva a los principios virtuosos de sus padres fundadores, John Locke, Adam Smith y Edmund Burke. Los liberales tienen por delante la responsabilidad de enfrentarse a sus propios fantasmas y liderar nuevamente la defensa de una política del deber, y no del beneficio. Una política al servicio de la libertad: preocupada por el c ontrol del poder; que asegure el establecimiento de mecanismos institucionales que impidan la corrupción y las conspiraciones contra el mercado que se urden a las sombras de los gobiernos; que combata el dogmatismo y que defiende la tolerancia como una seña de identidad de nuestra cultura. Ante la mayor crisis de las últimas décadas, urge recuperar la virtud y los valores, una tarea para la que los liberales están mejor capacitados que nadie. (shrink)
A ética é uma prática que coimplica subjetividade e da alteridade. Nas atuais sociedades de controle se procura fabricar subjetividades destemperadas numa ética do descuido de si. As éticas do cuidado de si visavam ajudar a constituir sujeitos livres pela prática ética da virtude. Os novos dispositivos de controle atualizaram o poder da ética como prática em que o sujeito pode dirimir seu estilo de vida entre a sujeição ou a liberdade. As éticas do cuidado de si desconsideraram a importância (...) da alteridade para pensar a prática ética. Embora existam divergências importantes entre ambas perspectivas éticas, elas coincidem em afirmar a ética como uma prática que incide na constituição dos sujeitos, uma prática de liberdade de si (Foucault) e uma prática de libertação do outro como justiça (Levinas). PALAVRAS-CHAVE – Alteridade. Cuidado de si. Modos de subjetivação. Liberdade. Desejo. (shrink)
Introduction -- In the beginning : it's all in the program -- Symbols and agreements : the art of humans -- The story of you : the first agreement : be impeccable with your word -- Every mind is a world : the second agreement : don't take anything personally -- Truth or fiction : the third agreement : don't make assumptions -- The power of belief : the symbol of Santa Claus -- Practice makes the master : the fourth (...) agreement : always do your best -- The power of doubt : the fifth agreement : be skeptical, but learn to listen -- The dream of the first attention : the victims -- The dream of the second attention : the warriors -- The dream of the third attention : the masters -- Becoming a seer : a new point of view -- The three languages : what kind of messenger are you? -- Epilogue: Help me to change the world. (shrink)
In this article, we shed light on the debate about the financial performance of socially responsible investment (SRI) mutual funds by separately analyzing the contributions of before-fee performance and fees to SRI funds’ performance, and by investigating the role played by fund management companies in the determination of those variables. We apply the matching estimator methodology to obtain our results and find that in the period 1997–2005, US SRI funds had better before- and after-fee performance than conventional funds with similar (...) characteristics. The differences, however, are driven exclusively by SRI funds run by management companies specialized in SRI. While these funds significantly outperform similar conventional funds, funds run by companies not specialized in SRI underperform their matched conventional funds. We find no significant differences in fees between SRI and conventional funds except in one case: SRI funds are cheaper than conventional funds run by the same management company. (shrink)
In this book review, I assess the merits of the book as a whole (it's good!) while focusing in particular on chapters by Claudia Card, Patrick Frierson, Robert Louden, Pablo Muchnik, Jeanine Grenberg, and Allen Wood.
The moral ideology of banking and insurance employees in Spain was examined along with supervisor role modeling and ethics-related policies and procedures for their association with ethical behavioral intent. In addition to main effects, we found evidence supporting that the person–situation interactionist perspective in supervisor role modeling had a stronger positive relationship with ethical intention among employees with relativist moral ideology. Also as hypothesized, formal ethical polices and procedures were positively related to ethical intention among those with universal beliefs, but (...) the relationship was much weaker among relativists. Thus, firms wishing to optimally promote ethical attitudes and behavior must tailor their organization-based initiatives to the individual characteristics of their employees. (shrink)
Objective: To measure the stability of life-sustaining treatment preferences amongst older people and analyse the factors that influence stability. Design: Longitudinal cohort study. Setting: Primary care centres, Granada (Spain). Eighty-five persons age 65 years or older. Participants filled out a questionnaire with six contexts of illness (LSPQ-e). They had to decide whether or not to receive treatment. Participants completed the questionnaire at baseline and 18 months later. Results: 86 percent of the patients did not change preferences. Sex, age, marital status, (...) hospitalisation, and self-perception of health and pain did not affect preferences. Morbidity and the death of a relative did. Conclusion: Stability of preferences of older persons in relation to end-of-life decisions seems to be more probable than instability. Some factors, such as the death of a relative or the increase in morbidity, can change preferences. These findings have implications for advance directives (ADs) and advance care planning. (shrink)
Professor de Filosofia da Universidade do Vale Rio dos Sinos (Unisinos), no Rio Grande do Sul, Castor M.M. Bartolomé Ruiz é um estudioso dos mecanismos do poder e da chamada “biopolítica”, dialogando sobretudo com as obras dos filósofos Giorgio Agamben e Michel Foucault. Doutor em Filosofia pela Universidade de Deusto, na Espanha, e autor de vários livros, Ruiz foi um dos palestrantes do 3º Colóquio de Biopolítica, realizado no Salão Nobre da Faculdade de Direito da UFG de 10 a 14 (...) de dezembro de 2012. O professor fez uma conferência sobre o tema Esboço Arqueológico da Vida na Exceção Jurídica. Na entrevista a seguir, que teve alguns trechos publicados no jornal O POPULAR na edição do dia 13 de dezembro de 2012, ele fala sobre biopolítica, estado de exceção, a importância do trabalho da Comissão da Verdade na investigação dos crimes cometidos durante a ditadura militar, entre outros temas. Confira a seguir a íntegra da entrevista, concedida por e-mail. (shrink)
My ultimate goal has always been to illuminate artistry at its greatest heights. Howard Gardner’s theory of multiple intelligences provided a theoretical framework for his life-long study of creativity, especially in prodigies like Picasso.1 According to Gardner, Picasso was weak in the scholastics and strong in the spatial, bodily, and personal spheres, characterizing the artist even as “frankly sadistic.”2 And Gardner developed a general framework for understanding the prodigy in terms of one’s proclivity toward meta-cognition as well as other commonalities (...) related to intrapersonal and interpersonal relations in various ways: childlike, few friends, one-minded, productivity, sacrifice, episodic .. (shrink)
Computational Creativity: A Continuing Journey Content Type Journal Article DOI 10.1007/s11023-010-9212-0 Authors Tony Veale, Departamento de Ingeniera del Software e Inteligencia Artificial, Universidad Complutense de Madrid, Madrid, Spain Pablo Gervás, Departamento de Ingeniera del Software e Inteligencia Artificial, Universidad Complutense de Madrid, Madrid, Spain Rafael Pérez y Pérez, Departamento de Ingeniera del Software e Inteligencia Artificial, Universidad Complutense de Madrid, Madrid, Spain Journal Minds and Machines Online ISSN 1572-8641 Print ISSN 0924-6495 Journal Volume Volume 20 Journal Issue Volume 20, (...) Number 4. (shrink)
In World Poverty and Human Rights, Thomas Pogge argues that the global rich have a duty to eradicate severe poverty in the world. The novelty of Pogges approach is to present this demand as stemming from basic commands which are negative rather than positive in nature: the global rich have an obligation to eradicate the radical poverty of the global poor not because of a norm of beneficence asking them to help those in need when they can at little cost (...) to themselves, but because of their having violated a principle of justice not to unduly harm others by imposing on them a coercive global order that makes their access to the objects of their human right to subsistence insecure. In this paper, I claim that although Pogge is right in arguing that negative duties are crucial in an account of global justice, he is wrong in saying that they are the only ones that are crucial. Harming the global poor by causing their poverty provides a sufficient but not a necessary condition for the global rich to have a duty of justice to assist them. After engaging in a critical analysis of Pogges argument, I conclude by suggesting the need for a robust conception of cosmopolitan solidarity that includes positive duties of assistance which are not mere duties of charity, but enforceable ones of justice. (shrink)
Are positive duties to help others in need mere informal duties of virtue or can they also be enforceable duties of justice? In this paper I defend the claim that some positive duties (which I call basic positive duties) can be duties of justice against one of the most important prin- cipled objections to it. This is the libertarian challenge, according to which only negative duties to avoid harming others can be duties of justice, whereas positive duties (basic or nonbasic) (...) must be seen, at best, as informal moral requirements or recommendations. I focus on the contractarian version of the libertarian challenge as recently presented by Jan Narveson. I claim that Narveson’s contractarian construal of libertarianism is not only intuitively weak, but is also subject to decisive internal problems. I argue, in particular, that it does not pro- vide a clear rationale for distinguishing between informal duties of virtue and enforceable duties of justice, that it can neither successfully justify libertarianism’s protection of negative rights nor its denial of positive ones, and that it fails to undermine the claim that basic positive duties are duties of global justice. -/- . (shrink)
What should our theorizing about social justice aim at? Many political philosophers think that a crucial goal is to identify a perfectly just society. Amartya Sen disagrees. In The Idea of Justice, he argues that the proper goal of an inquiry about justice is to undertake comparative assessments of feasible social scenarios in order to identify reforms that involve justice-enhancement, or injustice-reduction, even if the results fall short of perfect justice. Sen calls this the “comparative approach” to the theory of (...) justice. He urges its adoption on the basis of a sustained critique of the former approach, which he calls “transcendental.” In this paper I pursue two tasks, one critical and the other constructive. First, I argue that Sen’s account of the contrast between the transcendental and the comparative approaches is not convincing, and second, I suggest what I take to be a broader and more plausible account of comparative assessments of justice. The core claim is that political philosophers should not shy away from the pursuit of ambitious theories of justice (including, for example, ideal theories of perfect justice), although they should engage in careful consideration of issues of political feasibility bearing on their practical implementation. (shrink)
In his important new book National responsibility and global justice, David Miller presents a systematic challenge to existing theories of global justice. In particular, he argues that cosmopolitan egalitarianism must be rejected. Such views, Miller maintains, would place unacceptable burdens on the most productive political communities, undermine national self-determination, and disincentivize political communities from taking responsibility for their fate. They are also impracticable and quite unrealistic, at least under present conditions. Miller offers an alternative account that conceives global justice in (...) terms of a minimum set of basic rights that belong to human beings everywhere. Primary responsibility for securing such rights for an individual lies with his or her state, but in so far as these rights go unprotected, responsibilities for fulfilling them may fall on outsiders. While less ambitious that cosmopolitan egalitarian justice, Miller argues that his own view would nevertheless enable us to articulate what is most morally objectionable about our current world. In this article it is argued that none of Miller's critiques of cosmopolitan egalitarianism is effective, and that while certainly preferable to the status quo, a world governed by Miller's principles is not an attractive ideal. (shrink)
To be justifiable, the demands of a conception of human rights and global justice must be such that (a) they focus on the protection of important human interests, and (b) their fulfilment is feasible. I discuss the feasibility condition. I present a general account of the relation between moral desirability, feasibility and obligation within a conception of justice. I analyse feasibility, a complex idea including different types, domains and degrees. It is possible to respond in various ways if the fulfilment (...) of basic socioeconomic human rights against severe poverty seems at first to be infeasible. (shrink)
Samuel Scheffler has recently argued that some relationships are non-instrumentally valuable; that such relationships give rise to “underived” special responsibilities; that there is a genuine tension between cosmopolitan egalitarianism and special responsibilities; and that we must consequently strike a balance between the two. We argue that there is no such tension and propose an alternative approach to the relation between cosmopolitan egalitarianism and special responsibilities. First, while some relationships are non-instrumentally valuable, no relationship is unconditionally valuable. Second, whether such relationships (...) give rise to special responsibilities is conditional on those relationships not violating certain moral constraints. Third, these moral constraints arise from within cosmopolitan egalitarianism itself. Thus the value of relationships and the special responsibilities to which they give rise arise within the parameters of cosmopolitan egalitarianism itself. The real tension is not between cosmopolitan equality and special responsibilities, but between special responsibilities and the various general duties that arise from the recognition, demanded by cosmopolitan egalitarianism, of a multiplicity of other basic goods. Indeed, even the recognition of special relationships itself gives rise to general duties that may condition and/or weigh against putative special responsibilities. (shrink)
Machine generated contents note: -- Acknowledgments -- 1. Introduction: The complexity of the debate on global justice -- Part I: Beyond Global Poverty -- 2. Basic positive duties of justice: A contractualist defense -- 3. Negative duties and the libertarian challenge -- 4. The feasibility of global poverty eradication in nonideal circumstances -- Part II: Toward Global Equality -- 5. Humanist versus associativist accounts of global equality -- 6. A humanist defense of global equality -- 7. The feasibility of global (...) equality -- 8. Conclusion: Exploring responsibilities of global justice -- Bibliography -- Index. (shrink)
This paper presents a reconstruction of and some constructive comments on Thomas Pogge’s conception of global justice. Using Imre Lakatos’s notion of a research program, the paper identifies Pogge’s “hard core” and “protective belt” claims regarding the scope of fundamental principles of justice, the object and structure of duties of global justice, the explanation of world poverty, and the appropriate reforms to the existing global order. The paper recommends some amendments to Pogge’s program in each of the four areas.
It is often assumed that the supervaluationist theory of vagueness is committed to a global notion of logical consequence, in contrast with the local notion characteristic of modal logics. There are, at least, two problems related to the global notion of consequence. First, it brings some counterexamples to classically valid patterns of inference. Second, it is subject to an objection related to higher-order vagueness . This paper explores a third notion of logical consequence, and discusses its adequacy for the supervaluationist (...) theory. The paper proceeds in two steps. In the first step, the paper provides a deductive notion of consequence for global validity using the tableaux method. In the second step, the paper provides a notion of logical consequence which is an alternative to global validity, and discusses i) whether it is acceptable to the supervaluationist and ii) whether it plays a better role in a theory of vagueness in the face of the problems related to the global notion. (shrink)
This paper discusses Fara's so-called 'Paradox of Higher-Order Vagueness' concerning supervaluationism. In the paper I argue that supervaluationism is not committed to global validity, as it is largely assumed in the literature, but to a weaker notion of logical consequence I call 'regional validity'. Then I show that the supervaluationist might solve Fara's paradox making use of this weaker notion of logical consequence. The paper is discussed by Delia Fara in the same volume.
This paper is concerned with the claim that supervaluationist consequence is not classical for a language including an operator for definiteness. Although there is some sense in which this claim is uncontroversial, there is a sense in which the claim must be qualified. In particular I defend Keefe's position according to which supervaluationism is classical except when the inference from phi to Dphi is involved. The paper provides a precise content to this claim showing that we might provide complete (and (...) sound) systems of deduction for supervaluationist consequence in which proofs are completely classical with the exception of a single last step (involving the above mentioned inference). (shrink)
Though it is standardly assumed that supervaluationism applied to vagueness is committed to global validity, Achille Varzi (2007) argues that the supervaluationist should take seriously the idea of adopting local validity instead. Varzi’s motivation for the adoption of local validity is largely based on two objections against the global notion: that it brings some counterexamples to classically valid rules of inference and that it is inconsistent with unrestricted higher-order vagueness. In this discussion I review these objections and point out ways (...) to address them not considered in Varzi’s paper. (shrink)
Paraconsistent approaches have received little attention in the literature on vagueness (at least compared to other proposals). The reason seems to be that many philosophers have found the idea that a contradiction might be true (or that a sentence and its negation might both be true) hard to swallow. Even advocates of paraconsistency on vagueness do not look very convinced when they consider this fact; since they seem to have spent more time arguing that paraconsistent theories are at least as (...) good as their paracomplete counterparts, than giving positive reasons to believe on a particular paraconsistent proposal. But it sometimes happens that the weakness of a theory turns out to be its mayor ally, and this is what (I claim) happens in a particular paraconsistent proposal known as subvaluationism. In order to make room for truth-value gluts subvaluationism needs to endorse a notion of logical consequence that is, in some sense, weaker than standard notions of consequence. But this weakness allows the subvaluationist theory to accommodate higher-order vagueness in a way that it is not available to other theories of vagueness (such as, for example, its paracomplete counterpart, supervaluationism). (shrink)
It is a crucial question whether practicalities should have an impact in developing an applicable theory of human rights—and if, how (far) such constraints can be justified. In the course of the non-ideal turn of today’s political philosophy, any entitlements (and social entitlements in particular) stand under the proviso of practical feasibility. It would, after all, be unreasonable to demand something which is, under the given political and economic circumstances, unachievable. Thus, many theorist—particularly those belonging to the liberal camp—begin to (...) question the very idea of social human rights on grounds of practical infeasibility. This new minimalism about human rights motivates an immanent critique arguing that even if we were to proceed from a liberal framework, we would still wind up with a justification of the full list of social human rights. In the first part of this article, I will present the central positions of the debate presented by Amartya Sen, Maurice Cranston and Pablo Gilabert. Initially arguing that a minimalism of human rights on grounds of practical infeasibility alone proves unjustifiable, however, I shall open up two further perspectives, which allow practical infeasibilities to become normatively determinate. Discussing contributions by James Griffin and Charles Beitz, I will defend the thesis that certain feasibility constraints on (social) human rights can be justified on the condition that they are grounded either in a normative idea of the appropriate implementation of these rights or in reflection of the practical function of a theory of human rights. (shrink)
Supervaluationism is a well known theory of vagueness. Subvaluationism is a less well known theory of vagueness. But these theories cannot be taken apart, for they are in a relation of duality that can be made precise. This paper provides an introduction to the subvaluationist theory of vagueness in connection to its dual, supervaluationism. A survey on the supervaluationist theory can be found in the Compass paper of Keefe (2008); our presentation of the theory in this paper will be short (...) to get rapidly into the logical issues. This paper is relatively self-contained. A modest background on propositional modal logic is, though not strictly necessary, advisable. The reader might find useful the Compass papers Kracht (2011) and Negri (2011) (though these papers cover issues of more complexity than what is demanded to follow this paper). (shrink)
This paper argues against the common practice of presenting perdurantism, endurantism, and other views about persistence and time as solutions to an alleged puzzle about change. Various recent attempts to generate a puzzle about change are examined and found unsuccessful. This does not mean, however, that the relevant views about persistence and time are not well motivated, but rather that their interest and purpose is independent of their suitability for solving the alleged puzzle.
In the contemporary debate about the nature of persistence, stage theory is the view that ordinary objects (artefacts, animals, persons, etc.) are instantaneous and persist by being suitably related to other instantaneous objects. In this paper I focus on the issue of what stage theorists should say about the semantics of ordinary proper names, like ‘Socrates’ or ‘London’. I consider the remarks that stage theorists actually make about this issue, present some problems they face, and finally offer what I take (...) to be the best alternative available for them. (shrink)
In this paper we investigate a semantics for first-order logic originally proposed by R. van Rooij to account for the idea that vague predicates are tolerant, that is, for the principle that if x is P, then y should be P whenever y is similar enough to x. The semantics, which makes use of indifference relations to model similarity, rests on the interaction of three notions of truth: the classical notion, and two dual notions simultaneously defined in terms of it, (...) which we call tolerant truth and strict truth. We characterize the space of consequence relations definable in terms of those and discuss the kind of solution this gives to the sorites paradox. We discuss some applications of the framework to the pragmatics and psycholinguistics of vague predicates, in particular regarding judgments about borderline cases. (shrink)
Principles of procreative beneficence (PPBs) hold that parents have good reasons to select the child with the best life prospects. Sparrow (2010) claims that PPBs imply that we should select only female children, unlesswe attach normative significance to “normal” human capacities. We argue that this claim fails on both empirical and logical grounds. Empirically, Sparrow’s argument for greater female wellbeing rests on a selective reading of the evidence and the incorrect assumption that an advantage for females would persist even when (...) a serious gender imbalance is obtained. Logically, PPBs cite only pro tanto reasons and allow that the good of an individual child could be outweighed by other morally relevant considerations, such as those which take collectively suboptimal outcomes into account. There is thus no need to attach value to the “normal.”. (shrink)
The explanatory role of natural selection is one of the long-term debates in evolutionary biology. Nevertheless, the consensus has been slippery because conceptual confusions and the absence of a unified, formal causal model that integrates different explanatory scopes of natural selection. In this study we attempt to examine two questions: (i) What can the theory of natural selection explain? and (ii) Is there a causal or explanatory model that integrates all natural selection explananda? For the first question, we argue that (...) five explananda have been assigned to the theory of natural selection and that four of them may be actually considered explananda of natural selection. For the second question, we claim that a probabilistic conception of causality and the statistical relevance concept of explanation are both good models for understanding the explanatory role of natural selection. We review the biological and philosophical disputes about the explanatory role of natural selection and formalize some explananda in probabilistic terms using classical results from population genetics. Most of these explananda have been discussed in philosophical terms but some of them have been mixed up and confused. We analyze and set the limits of these problems. (shrink)
