People have disagreed on the significance of Libet-style experiments for discussions about free will. In what specifically concerns free will in a libertarian sense, some argue that Libet-style experiments pose a threat to its existence by providing support to the claim that decisions are determined by unconscious brain events. Others disagree by claiming that determinism, in a sense that conflicts with libertarian free will, cannot be established by sciences other than fundamental physics. This paper rejects both positions. First, it is (...) argued that neuroscience and psychology could in principle provide support for milder deterministic claims that would also conflict with libertarian free will. Second, it is argued that Libet-style experiments—due to some of their peculiar features, ones that need not be shared by neuroscience as a whole—currently do not support such less demanding deterministic claims. The general result is that neuroscience and psychology could in principle... (shrink)

In a previous paper, I argued that neuroscience and psychology could in principle undermine libertarian free will by providing support for a subset of what I called “statements of local determination.” I also argued that Libet-style experiments have not so far supported statements of that sort. In a commentary to the paper, Adina Roskies and Eddy Nahmias accept the claim about Libet-style experiments, but reject the claim about the possibilities of neuroscience. Here, I explain why I still disagree with their (...) conclusion, despite being sympathetic to a lot of what they say in support of it. (shrink)

Multialgebras have been much studied in mathematics and in computer science. In 2016 Carnielli and Coniglio introduced a class of multialgebras called swap structures, as a semantic framework for dealing with several Logics of Formal Inconsistency that cannot be semantically characterized by a single finite matrix. In particular, these LFIs are not algebraizable by the standard tools of abstract algebraic logic. In this paper, the first steps towards a theory of non-deterministic algebraization of logics by swap structures are given. Specifically, (...) a formal study of swap structures for LFIs is developed, by adapting concepts of universal algebra to multialgebras in a suitable way. A decomposition theorem similar to Birkhoff’s representation theorem is obtained for each class of swap structures. Moreover, when applied to the 3-valued algebraizable logics J3 and Ciore, their classes of algebraic models are retrieved, and the swap structures semantics become twist structures semantics. This fact, together with the existence of a functor from the category of Boolean algebras to the category of swap structures for each LFI, suggests that swap structures can be seen as non-deterministic twist structures. This opens new avenues for dealing with non-algebraizable logics by the more general methodology of multialgebraic semantics. (shrink)

Diana Pérez criticizes Davidson’s argument for the thesis that there is no thought without language, and offers an alternative defense of that thesis on the basis of empirical studies on developmental psychology. In this comment I argue that more recent studies do not seem to affect Davidson’s argument in the way Pérez suggests, and that her alternative defense of the thesis that there is no thought without language is insufficient. At the end, I offer a sketch of how a weaker (...) and more tenable version of the argument could be articulated. (shrink)

Moral subjectivism is commonly associated with out-of-favour theories like, e.g., Alfred Ayer’s emotivism or John Mackie’s error theory. This paper approaches the field against the background of the attitudinal character of morality and religion. The possibility of a brand of moral subjectivism is established which is common to Ayer’s and Mackie’s theories in name only yet still has significant merits. The perspective from action theory and the philosophy of mind suggests that the problem of moral obligation, central to moral philosophy, (...) is more convincingly dealt with by subjectivism than by its rivals: In contrast to realism or even relativism (with which subjectivism is often confused), subjectivism can help to explain the peculiarities of obligation without forcing us to disregard the parallel problem in the field of religion. This finding calls into question the rationale for, as well as the success of, central assumptions in ontology and semantics which the realist so freely hands out in order to make his point: If religious facts and the truth-aptness of religious judgements will not explain religious obligation, moral facts and the truth-aptness of moral judgements will not help the moral realist either. So unless we do not wish to simply cast the problem of moral obligation aside, in future, moral subjectivism must be seriously considered as a worthwhile position in its own right. [in German] **************************************************************************************************** ********** Moralischer Subjektivismus ist ein Oberbegriff für Theorien wie Alfred Ayers „Emotivismus“ und John Mackies „Irrtumstheorie“, die heute kaum noch Vertreter finden. In diesem Aufsatz beleuchte ich das Feld vom Einstellungscharakter von Moral und Religion her. Ich lege so die Möglichkeit eines anderen moralischen Subjektivismus dar, der mit Ayers oder Mackies Theorie nur das Rubrum gemein hätte und doch gewichtige Vorzüge aufweist. Die handlungstheoretische Betrachtung von Moral und Religion mit Hilfe der Philosophie des Geistes legt nahe, dass dieser moralische Subjektivismus mit dem für die Moralphilosophie zentralen Problem des moralischen Sollens besser umgehen kann als seine Rivalen: Anders als der Realismus oder gar der Relativismus (mit dem der Subjektivismus oft verwechselt wird), kann der hier ausgeleuchtete Subjektivismus mit der besonderen Verbindlichkeit moralischer Forderungen umgehen, ohne die Parallele zur besonderen Verbindlichkeit religiöser Forderungen in Abrede stellen zu müssen. Die Rolle und Durchschlagkraft der vom Realisten so freigiebig gespendeten ontologischen oder semantischen Zusatzannahmen er- scheint vor diesem Hintergrund fragwürdig. Dem religiösen Realisten wird man vergleichbare Annahmen nicht zugeben wollen und muss es auch nicht. Dann aber können wir die Erklärung besonderer Verbindlichkeit generell nicht auf Ontologie oder Semantik gründen. Der verbreitete Appell an sogenannte moralische Tatsachen oder die behauptete Wahrheitsfähigkeit moralischer Sätze erweist sich so als wirkungslos. Sofern wir das Problem des moralischen Sollens überhaupt weiter ernst nehmen wollen, muss der moralische Subjektivismus als Position künftig ernsthaft erwogen werden. (shrink)

This paper focuses on Gilberto Gomes’ work on free will. In a series of contributions that have had a significant impact on the respective literature, Gomes developed a conception about free will and argued that its existence is consistent with recent scientific findings, specially in neuroscience. In this paper, I object to a claim of Gomes about his conception of free will, namely the claim that it is a compatibilist conception. I seek to show that Gomes does not use the (...) term ‘compatibilism’ as it is usual in the contemporary literature on free will, i.e., as the thesis that free will can exist even if determinism is true. Moreover, the conception of free will Gomes proposes actually has an incompatibilist commitment. I argue that, more than a mere terminological point, acknowledging the incompatibilist aspect of Gomes’ view motivates important questions about the details of the view and helps to reveal a limitation of his defense of the existence of free will. [Este artigo tem como tema o trabalho de Gilberto Gomes sobre o livre-arbítrio. Em uma série de contribuições que tiveram um impacto significativo na respectiva literatura, Gomes elaborou uma concepção sobre o livre-arbítrio e argumentou que sua existência é consistente com descobertas científicas recentes, especialmente na neurociência. Neste artigo, questiono uma afirmação de Gomes sobre sua concepção sobre o livre-arbítrio, a saber, que se trata de uma concepção compatibilista. Busco mostrar que Gomes não usa o termo ‘compatibilismo’ como é habitual na literatura contemporânea sobre o livre-arbítrio, isto é, como a tese segundo a qual o livre-arbítrio pode existir ainda que o determinismo seja verdadeiro. Ademais, a concepção sobre o livre-arbítrio desenvolvida por Gomes tem, efetivamente, um compromisso incompatibilista. Argumento que, mais do que uma mera elucidação terminológica, reconhecer o elemento incompatibilista presente na proposta de Gomes suscita questões importantes sobre os detalhes da proposta e também ajuda a reconhecer uma limitação de sua defesa da existência do livre-arbítrio.]. (shrink)

In the current debate in political philosophy, the so-called communitarian thinkers intend to offer an alternative to the dominant liberal thought. The ideal of ethicalcommunity as way of life in society in which intersubjective relationships are ruled by laws conceived as public laws, reintroduces the question of virtue in the scope of social and political life, with the requirement of an ethical style of doing politics.

What is discrimination and what makes wrongful discrimination wrong? Even after an ever-rising tide of research over the course of the past twenty-five or so years these questions still remain hard to answer. Exercising candid and self-critical hindsight, Larry Alexander, who contributed his fair share to this tide, thus remarked: “All cases of discrimination, if wrongful, are wrongful either because of their quite contingent consequences or perhaps because they are breaches of promises or fiduciary duties.” If this is true it (...) raises serious doubts as to how wrongful discrimination can be a moral wrong in itself. Also, the question comes up as to who it is who breaches a promise or a fiduciary duty. This paper defends the view that the substance of these remarks is better understood by couching them in a political approach towards discrimination. Against this background, they give rise to real and pressing concerns. Once we conceptualise the realm political along Hobbesian lines as the battleground comprising both the private sphere of the individual and the public sphere of the commonwealth it emerges that discrimination has different significance with regard to these respective spheres. In order to illustrate this, I adopt Kasper Lippert-Rasmussen’s descriptive account of discrimination as „differential treatment on the basis of membership of a socially salient group“ and the common view that wrongful discrimination is wrong because it is harmful, disrespectful, or both. In the private sphere the case can be made for morally permissible cases of discrimination. Sexual discrimination due to sexual self-determination with consequently freely choosing your sexual or romantic partner is the central case in point. Where somebody feels unfairly rejected and consequently hurt neither the charge of harm inflicted nor that of disrespect endured need be justified. No “breach of promises or fiduciary duties” is involved. The case is different, however, when it comes to the fiduciary of power. In discriminating, he who exercises the power of the commonwealth necessarily breaches a promise and a fiduciary duty. Discrimination thus appears to be more of a problem of political philosophy than one of applied ethics. [in German] **************************************************************************************************** ******************** Was ist Diskriminierung und warum ist Diskriminierung verwerflich, wenn sie es denn ist? Dies bleibt ungeachtet der seit fünfundzwanzig Jahren anschwellenden Forschungsliteratur unverändert eine harte Nuss. Larry Alexander, der selbst maßgeblich zu dieser Forschungsliteratur beigetragen hat, merkt daher selbstkritisch an: „All cases of discrimination, if wrongful, are wrongful either because of their quite contingent consequences or perhaps because they are breaches of promises or fiduciary duties.“ Wenn dies der Fall ist, stellt sich die Frage, wie moralisch verwerfliche Diskriminierung dann noch an sich verwerflich sein kann. Es stellt sich dann auch die Frage, wer hier ein Versprechen bricht und seine Treuepflichten verletzt. Die leitende Annahme dieses Aufsatzes ist es, dass man dem sachlichen Kern dieser Bedenken Rechnung tragen kann, indem man eine politische Perspektive auf das Phänomen der Diskriminierung einnimmt. Die Bedenken erweisen sich dann als substanziell und zutreffend. Konzeptualisieren wir den Bereich des Politischen mit Thomas Hobbes als das Spannungsfeld, das die private Sphäre des Individuums und die öffentliche Sphäre des Gemeinwesens gegeneinander abgrenzt, wird sichtbar, dass Diskriminierung in diesen Sphären jeweils unterschiedlich zu bewerten ist. Um dies zu verdeutlichen, lege ich Kasper Lippert-Rasmussens deskriptives Verständnis von Diskriminierung als „differential treatment on the basis of membership of a socially salient group“ zugrunde und mache von der in der Diskussion verbreiteten Ansicht Gebrauch, dass das Zufügen von Schaden oder die Verweigerung von Respekt Diskriminierung verwerflich macht. In der privaten Sphäre kann es nun Fälle moralisch zulässiger Diskriminierung geben. Zentral ist die sexuelle Diskriminierung aufgrund der Ausübung einer freien Wahl des eigenen Sexual- oder Liebespartners. Auch wenn sich der Abgewiesene womöglich geschädigt sieht, wird unbilliger Schaden nicht zugefügt und geschul- deter Respekt nicht verweigert. Den Grund finden wir in Alexanders Formel: Ein „breach of promises“ oder eine Verletzung „fiduciary duties“ liegt nicht vor. Anders im Fall staatlicher Diskriminierung: Ein „breach of promises“ oder eine Verletzung „fiduciary duties“ liegt hier stets vor, da Fälle staatlicher Diskriminierung regelmäßig Machtmissbrauch darstellen: Der Inhaber staatlicher Gewalt verletzt die Treuepflicht, das Mandat unparteilich auszuüben, das getreulich auszuführen er gelobt hat. Diskriminierung erscheint also weniger als ein Problem der angewandten Ethik denn als eines der politischen Philosophie. (shrink)

From Gadamer's Habilitation thesis, “Plato’s dialectical ethics. Phenomenological Interpretations Relating to the Philebus” (1928), this article seeks to highlight the fundamental lines of Plato’s image, outlined in that author’s first philosophical publication (1931). The confrontation with the themes of ethics and dialectic, in the current state of Platonic studies, indicates that in Plato’s image drawn in the early confrontation with the Philebus, clearly influenced by the phenomenological notion of Dasein, one already finds the fundamental features of what will become Gadamer's (...) philosophical hermeneutics, fully emancipated from Heideggerian tutelage. (shrink)

The logics of formal inconsistency (LFIs, for short) are paraconsistent logics (that is, logics containing contradictory but non-trivial theories) having a consistency connective which allows to recover the ex falso quodlibet principle in a controlled way. The aim of this paper is considering a novel semantical approach to first-order LFIs based on Tarskian structures defined over swap structures, a special class of multialgebras. The proposed semantical framework generalizes previous aproaches to quantified LFIs presented in the literature. The case of QmbC, (...) the simpler quantified LFI expanding classical logic, will be analyzed in detail. An axiomatic extension of QmbC called QLFI1o is also studied, which is equivalent to the quantified version of da Costa and D'Ottaviano 3-valued logic J3. The semantical structures for this logic turn out to be Tarkian structures based on twist structures. The expansion of QmbC and QLFI1o with a standard equality predicate is also considered. (shrink)

In 1988, J. Ivlev proposed some (non-normal) modal systems which are semantically characterized by four-valued non-deterministic matrices in the sense of A. Avron and I. Lev. Swap structures are multialgebras (a.k.a. hyperalgebras) of a special kind, which were introduced in 2016 by W. Carnielli and M. Coniglio in order to give a non-deterministic semantical account for several paraconsistent logics known as logics of formal inconsistency, which are not algebraizable by means of the standard techniques. Each swap structure induces naturally a (...) non-deterministic matrix. The aim of this paper is to obtain a swap structures semantics for some Ivlev-like modal systems proposed in 2015 by M. Coniglio, L. Fariñas del Cerro and N. Peron. Completeness results will be stated by means of the notion of Lindenbaum–Tarski swap structures, which constitute a natural generalization to multialgebras of the concept of Lindenbaum–Tarski algebras. (shrink)

Abstract: The Pull Bayesian Significance Test (FBST) for precise hy- potheses is applied to a Multivariate Normal Structure (MNS) model. In the FBST we compute the evidence against the precise hypothesis. This evi- dence is the probability of the Highest Relative Surprise Set (HRSS) tangent to the sub-manifold (of the parameter space) that defines the null hypothesis. The MNS model we present appears when testing equivalence conditions for genetic expression measurements, using micro-array technology.

Este artigo reconstrói os argumentos de Donald Davidson (1970) em favor de sua teoria do monismo anômalo e revisa as principais críticas que recebeu. Essa teoria é amplamente rejeitada atualmente e, dadas as inúmeras críticas recebidas, é razoável concluir que qualquer tentativa de reabilitação tem um longo caminho pela frente. A diversidade dessas críticas sugere que não há consenso sobre por que exatamente o monismo anômalo fracassa, embora as dificuldades pareçam convergir sobre a justificação e possibilidade da tese monista, e (...) não sobre a anomalia do mental. (shrink)

The dissertation has two parts, each dealing with a problem, namely: 1) What is the most adequate account of fuzziness -the so-called phenomenon of vagueness?, and 2) what is the most plausible solution to the sorites, or heap paradox? I will try to show that fuzzy properties are those which are gradual, amenable to be possessed in a greater or smaller extent. Acknowledgement of degrees in the instantiation of a property allows for a gradual transition from one opposite to the (...) other, each intermediate stage constituting an overlap in certain proportion of both contraries. Hence, degrees in the possession of a property give rise to simple contradictions. The reason why I have chosen those two questions is that they provide the main philosophical motivation for a particular brand of an infinite valued and paraconsistent logic. I will claim that Classical logic (CL) is not adequate to handle fuzzy situations, and, being deficient, is in need of being expanded to make room for degrees of truth and weak contradictions. One can hardly deny the importance of the debate, since what is ultimately at stake is what the limits of truth, rationality, intelligibility and possibility are. The main disciplines within which the research moves are the philosophy of language, philosophy of logic, and ontology. (shrink)

Tradução de correspondências trocadas entre Descartes e Elisabeth no ano de 1643, nas quais discutem a tese cartesiana da alma como imaterial e inextensa.

The aim of the paper is to analyze the expressive power of the square operator of Łukasiewicz logic: ∗x=x⊙x⁠, where ⊙ is the strong Łukasiewicz conjunction. In particular, we aim at understanding and characterizing those cases in which the square operator is enough to construct a finite MV-chain from a finite totally ordered set endowed with an involutive negation. The first of our main results shows that, indeed, the whole structure of MV-chain can be reconstructed from the involution and the (...) Łukasiewicz square operator if and only if the obtained structure has only trivial subalgebras and, equivalently, if and only if the cardinality of the starting chain is of the form n+1 where n belongs to a class of prime numbers that we fully characterize. Secondly, we axiomatize the algebraizable matrix logic whose semantics is given by the variety generated by a finite totally ordered set endowed with an involutive negation and Łukasiewicz square operator. Finally, we propose an alternative way to account for Łukasiewicz square operator on involutive Gödel chains. In this setting, we show that such an operator can be captured by a rather intuitive set of equations. (shrink)

The dissertation has two parts, each dealing with a problem, namely: 1) What is the most adequate account of fuzziness -the so-called phenomenon of vagueness?, and 2) what is the most plausible solution to the sorites, or heap paradox? I will try to show that fuzzy properties are those which are gradual, amenable to be possessed in a greater or smaller extent. Acknowledgement of degrees in the instantiation of a property allows for a gradual transition from one opposite to the (...) other, each intermediate stage constituting an overlap in certain proportion of both contraries. Hence, degrees in the possession of a property give rise to simple contradictions. The reason why I have chosen those two questions is that they provide the main philosophical motivation for a particular brand of an infinite valued and paraconsistent logic. I will claim that Classical logic (CL) is not adequate to handle fuzzy situations, and, being deficient, is in need of being expanded to make room for degrees of truth and weak contradictions. One can hardly deny the importance of the debate, since what is ultimately at stake is what the limits of truth, rationality, intelligibility and possibility are. The main disciplines within which the research moves are the philosophy of language, philosophy of logic, and ontology. (shrink)

Although the controversy between Malthus and Ricardo has long been considered to be an important source for the history of economic thought, it has hardly been the object of a careful study qua controversy, i.e. as a polemical dialogical exchange. We have undertaken to fill this gap, within the framework of a more ambitious project that places controversies at the center of an account of the history of ideas, in science and elsewhere. It is our contention that the dialogical co-text (...) is essential for reconstructing the meaning and the evolution of science. In the present paper we try to substantiate this contention by means of a pragma-rhetorical study of this particular controversy. First, we reconstruct, through an analysis of a chunk of the correspondence, a micro-level of specific moves and countermoves which constitute a sequential structure within which also meta-scientific and meta-controversial considerations play a role. We then move to a macro-level of analysis, looking for recurrent patterns of argumentation. Finally, we draw epistemological conclusions on the nature of rationality and progress as manifested in actual scientific controversies. (shrink)

Free will skepticism is the view that people never truly deserve to be praised, blamed, or punished for what they do. One challenge free will skeptics face is to explain how criminality could be dealt with given their skepticism. This paper critically examines the prospects of implementing legal changes concerning crime and punishment derived from the free will skeptical views developed by Derk Pereboom and Gregg Caruso. One central aspect of the changes their views require is a concern for reducing (...) the severity of current forms of punishment. The paper considers two strategies for pursuing such a reduction. By taking into account evidence from the psychology of belief in free will and desire to punish, it is argued that a strategy aiming at a reduction of people’s natural desire to punish criminals can be successful if capable of providing alternatives to current forms of punishment satisfying three properties: they must be less harmful than current forms of punishment, more effective in preventing crime, and incompatible with current forms of punishment. (shrink)

Judging a person as morally responsible involves believing that certain responses (such as punishment, reward, or expressions of blame or praise) can be justifiably directed at the person. This paper develops an account of the evolution of moral responsibility judgment that adopts Michael Tomasello’s two-step theory of the evolution of morality and borrows also from Christopher Boehm’s work. The main hypothesis defended is that moral responsibility judgment originally evolved as an adaptation that enabled groups of cooperative individuals to hold free (...) riders responsible more safely by acting in a coordinated way. (shrink)

O presente trabalho procura se debruçar sobre a dimensão ontológica do homem animal-político-social em Aristóteles. Logo, desde já nos cabe ressaltar que a verificação do homem enquanto animal político-social abarcará um caráter metafísico para a efetivação no e do físico-material-natural, ou seja, o ser biopsicossocial. Refletindo, construindo e interligando o ser físico e “espiritual”. Portanto, o objeto principal será o que diz respeito ao homem como um animal político-social, no sentido ontológico do ser sensível em Aristóteles. Para tanto, a proposta (...) abarcará a Teoria das Quatro Causas de Aristóteles. Isso para demonstrar certa ontologia de uma suposta essência da ou na substancia no e do ser humano. Ou seja, quem é o “homem-ser-ente” coberto por sua estrutura física e sensível no sentido ontológico no corporal? São os seres humanos animais essencialmente políticos? E se forem são seres políticos do e ou no “espiritual”, “almático” e metafísico ou no físico-corporal? (shrink)

Much of what has been discussed in the theory of reference in the last twenty-five years is strongly influenced by considerations centring on the business of devising a semantics for quantified modal logic. In this context, discussion of the property of rigidity plays an important role. This property is conceived of as a semantic modal property that distinguishes proper names from descriptions. It is argued that there is a semantic modal asym- metry between expressions of these types. In this talk (...) I shall challenge this assumption. By examining the intuitive Kripkean argument or test employed I arrive at two rather nonconformist results: Firstly, it seems that the test does not establish a genuine semantic asymmetry: Rigidity appears to be a pragmatic property. Secondly, the test does not seem to demonstrate an asymmetry at all: When applied correctly it suggests that both proper names and descriptions (even discounting notorious cases like “the even prime”) can be used rigidly—or so I shall argue. (shrink)

In the last few decades, the literature on moral responsibility has been increasingly populated by scientific studies. Studies in neuroscience and psychology, in particular, have been claimed to be relevant for discussions about moral responsibility in a number of ways. And at the same time, there is not yet a systematic understanding of the sort of questions a science of moral responsibility is supposed to answer. This paper is an attempt to move toward such an understanding. I discuss three models (...) for framing scientific questions relevant to an investigation of moral responsibility. The favored model—the Enhancement model—proposes that a science of moral responsibility has two descriptive tasks. First, science can describe the causes and effects of the many sorts of responses that constitute the human practices of moral responsibility, such as praise, blame, and punishment. And, second, science can describe how modifications aiming at the improvement of such practices can be achieved. Relatively to the other models to be considered, the Enhancement model is broader in scope and less tied to the traditional philosophical agenda on moral responsibility. (shrink)

In abstract algebraic logic, many systems, such as those paraconsistent logics taking inspiration from da Costa's hierarchy, are not algebraizable by even the broadest standard methodologies, as that of Blok and Pigozzi. However, these logics can be semantically characterized by means of non-deterministic algebraic structures such as Nmatrices, RNmatrices and swap structures. These structures are based on multialgebras, which generalize algebras by allowing the result of an operation to assume a non-empty set of values. This leads to an interest in (...) exploring the foundations of multialgebras applied to the study of logic systems. -/- It is well known from universal algebra that, for every signature Sigma, there exist algebras over Sigma which are absolutely free, meaning that they do not satisfy any identities or, alternatively, satisfy the universal mapping property for the class of Sigma-algebras. Furthermore, once we fix a cardinality of the generating set, they are, up to isomorphisms, unique, and equal to algebras of terms (or propositional formulas, in the context of logic). Equivalently, the forgetful functor, from the category of Sigma-algebras to Set, has a left adjoint. This result does not extend to multialgebras. Not only multialgebras satisfying the universal mapping property do not exist, but the forgetful functor U, from the category of Sigma-multialgebras to Set, does not have a left adjoint. -/- In this paper we generalize, in a natural way, algebras of terms to multialgebras of terms, whose family of submultialgebras enjoys many properties of the former. One example is that, to every pair consisting of a function, from a submultialgebra of a multialgebra of terms to another multialgebra, and a collection of choices (which selects how a homomorphism approaches indeterminacies), there corresponds a unique homomorphism, what resembles the universal mapping property. Another example is that the multialgebras of terms are generated by a set that may be viewed as a strong basis, which we call the ground of the multialgebra. Submultialgebras of multialgebras of terms are what we call weakly free multialgebras. Finally, with these definitions at hand, we offer a simple proof that multialgebras with the universal mapping property for the class of all multialgebras do not exist and that U does not have a left adjoint. (shrink)

Resumo: Em décadas recentes, a investigação filosófica sobre a responsabilidade moral e o livre-arbítrio, que por muito tempo foi vista como um empreendimento principalmente teórico, passou a também incluir preocupações de tipo mais prático. Essa mudança é bem ilustrada pela proposta cética desenvolvida por autores como Derk Pereboom e Gregg Caruso. Seus trabalhos não apenas negam que sejamos agentes livres e moralmente responsáveis (em um sentido específico dos termos em questão), mas também defendem reformas na maneira como a responsabilização é (...) efetivada em nossas relações interpessoais e, especialmente, no sistema penal. Este artigo examina as implicações práticas do ceticismo de Pereboom e Caruso, principalmente no que diz respeito à sua implementabilidade. Argumento que o núcleo propriamente cético da proposta é inviável para seres humanos com a psicologia moral que temos, mas que, apesar disso, alguns elementos da proposta são compatíveis com uma proposta não-cética focada no aperfeiçoamento das práticas punitivas. Abstract: In recent decades, the philosophical investigation of moral responsibility and free will, which for a long time was seen as a mostly theoretical enterprise, became also the place of more practically oriented concerns. The skeptical view developed by Derk Pereboom and Gregg Caruso is a good illustration of the change. In their work, they not just deny that we are free and morally responsible agents (in a specific sense of the relevant terms) but also propose the reform of responsibility practices as they figure in our interpersonal relations and, especially, in the criminal justice system. This paper examines the practical implications of Pereboom and Caruso’s skepticism, particularly in what concerns its likelihood of being implemented. I argue that the strictly skeptical core of their proposal is not viable for human beings with a moral psychology like ours, but that some elements are nonetheless consistent with a non-skeptical view focused on the improvement of punitive practices. (shrink)

We examine the most famous controversy between economists as a means of shedding fresh light on the current debate about economic methodology. By focusing on the controversy as the primary unit of analysis, we show how methodological considerations are but one of a whole set of stratagems strategically employed by each opponent. We argue that each opponent's preference for a particular kind of stratagems expresses his own specific scientific style (within the general scientific and cultural style of an age). We (...) also describe a dynamic dimension of the controversy, independent of the participants' intentions. Such a dimension is analysed in a "cycle" of the controversy, which begins with a well-defined issue and expands to additional topics, without reaching a "solution" to the initial issue. The definition and re-definition of the issue(s) at stake and of the difference between both participants is an essential and recurrent feature of such cycles; the conclusion of a cycle does not imply a real "closure" of the controversy, but only that each opponent has reached a satisfying degree of self-clarification. The controversy, thus, does not yield persuasion -- its ostensible aim. Rather, its "benefit" seems to lie in an unintended result -- clarification and deepening of contrasting approaches to the discipline -- due to its peculiar dynamics. In so far as the history of a discipline requires a reconstruction of such contrasts, it is indispensable for it to take into account the controversies where they emerge, and to view both the positive doctrines and the methodological posture of the contenders as parts of a wider framework, that is a scientific style. (shrink)

In this paper two systems of AGM-like Paraconsistent Belief Revision are overviewed, both defined over Logics of Formal Inconsistency (LFIs) due to the possibility of defining a formal consistency operator within these logics. The AGM° system is strongly based on this operator and internalize the notion of formal consistency in the explicit constructions and postulates. Alternatively, the AGMp system uses the AGM-compliance of LFIs and thus assumes a wider notion of paraconsistency - not necessarily related to the notion of formal (...) consistency. (shrink)

Le pari de cet ouvrage est d'explorer les facettes multiples à travers lesquelles se donne le soi. Parler de soi plutôt que de moi implique une rupture franche avec les philosophies qui placent le sujet humain en position fondatrice. Le soi est encore moins une « chose » mais un mode d'être ; le soi n'est pas une donnée mais une conquête dont le devenir est en partie indéterminé. C'est donc sous le signe des épreuves qu'il faut penser les variations (...) phénoménologiques et herméneutiques sur le soi. Si la philosophie reste la discipline dominante des réflexions qui parcourent les contributions du volume, l'originalité de cet ouvrage est d'offrir en même temps au lecteur d'autres variations par lesquelles se décline le soi. (shrink)

[Note: articles 1-5 are in English; Intro, Discussion, and Conclusion are in Portuguese.] Responsibility practices that are part of our daily lives involve, among other things, standards about how one should praise, blame, or punish people for their actions, as well as particular acts that follow those standards to a greater or lesser extent. A classical question in philosophy asks whether human beings can actually be morally responsible for what they do. This dissertation argues that addressing this classical question is (...) insufficient if one wants the investigation of moral responsibility to serve the goal of improving ordinary responsibility practices. As an alternative, I offer directions for an interdisciplinary investigation that I take to be in a better position to promote that goal. My argument is developed in five articles and a discussion section. The first four articles describe limitations of skeptical views, which deny the existence of moral responsibility. The first article assesses a skeptical argument based on results from neuroscience that intends to show that there is no free will. I argue that a premise in the argument—which says that choices are determined by events in the brain—is not supported by the available results. The second article argues that, despite the fact that existent results do not show that choices are determined by brain events, further studies in neuroscience could in principle do that. The third article begins the discussion of limitations that concern the implementability of some of the changes in responsibility practices recommended in skeptical approaches. Specifically, I describe challenges that attempts to reduce the severity of legal punishment are likely to face due to psychological facts about belief in free will and desire to punish. The forth article presents results from an original experiment that sought to test a hypothesis about the workings of belief in free will and the desire to punish, namely the hypothesis that the desire to punish causally affects beliefs about free will. Results failed to support the hypothesis. Finally, the fifth article presents what I call the enhancement model, i.e., a proposal about how to structure an interdisciplinary investigation that can promote the enhancement of ordinary responsibility practices. The final discussion section shows how the enhancement model overcomes some of the limitations of recent discussions about the existence of moral responsibility, which includes not just the skeptical views considered in earlier articles, but also views that affirm the existence of moral responsibility and free will. The central claim of this dissertation, therefore, is that the investigation of moral responsibility can be rearranged so as to further the goal of improving ordinary responsibility practices. (shrink)

In 2016, Béziau introduces a restricted notion of paraconsistency, the so-called genuine paraconsistency. A logic is genuine paraconsistent if it rejects the laws $\varphi,\neg \varphi \vdash \psi$ and $\vdash \neg (\varphi \wedge \neg \varphi)$. In that paper, the author analyzes, among the three-valued logics, which of them satisfy this property. If we consider multiple-conclusion consequence relations, the dual properties of those above-mentioned are $\vdash \varphi, \neg \varphi$ and $\neg (\varphi \vee \neg \varphi) \vdash$. We call genuine paracomplete logics those rejecting (...) the mentioned properties. We present here an analysis of the three-valued genuine paracomplete logics. A very natural twist structures semantics for these logics is also found in a systematic way. This semantics produces automatically a simple and elegant Hilbert-style characterization for all these logics. Finally, we introduce the logic LGP which is genuine paracomplete is not genuine paraconsistent, not even paraconsistent and cannot be characterized by a single finite logical matrix. (shrink)

O artigo em tela tem como objetivo refletir sobre as contradições, antagonismos e problemáticas que envolvem a educação, seus modos e processos; bem como a escola, a pedagogia, o Estado e o sistema capitalista. Para tanto, começamos ressaltando ainda a infeliz ineficiência da função e papel que a estrutura educacional e escolar desempenha. Ineficiência objetiva e controlada por um empresariado e políticos brasileiros que se colocam a disposição de em primeiro lugar defender os interesses do capital internacional, do capital nacional (...) e em segundo os deles próprios. Que na verdade é o primeiro! Com isso, partindo de tais reflexões, aos modos que a pedagogia, a educação e a filosofia foram tratadas ao longo do tempo e da história, aos modos e formas que a educação e a escola se comportam no atual Brasil, encerramos com importantes reflexões. (shrink)

Muito se ouve falar em cidadão, ser cidadão, direitos e deveres do cidadão, bem como atuar ativamente enquanto cidadão. Porém, inúmeras pessoas ignoram esse tão complexo, profundo e importante termo. Saber sua origem, etimologia, sentido e significados são de suma importância para os sujeitos que fazem parte de uma estrutura, sistema e conjuntura social que abarca os indivíduos como seus cidadãos. Desse modo, o presente trabalho busca uma compreensão mais aprofundada do que é cidadão, ser cidadão, sua origem, ativação e (...) a efetividade prática de tal conceito na realidade social, política, econômica e histórica, uma vez que, o conceito ou termo deriva de origens longínquas e como construto e produção humana no social, não veio do acaso, mas através e por meio da racionalidade, experiências, processos, vivencias e percepções diante das relações sociais, políticas, econômicas e históricas. Logo, nos foi necessário realizar procedimentos e movimentos historiográficos e de filosofia da linguagem, indo a Grécia e Roma Antigas, no qual foram configurando o termo em suas origens e legando para as posteridades, inclusive para nós brasileiros. Sendo assim, fizemos o esforço de buscar as origens do termo, conceito e aplicabilidade no social partindo brevemente da Grécia e Roma Antiga, e relacionando-o com a realidade e aspectos da linguagem, inclusive sua relação com o processo contemporâneo, no qual nos movem a indagar quais problemas envolvem o termo, prática, direitos do cidadão e ou ser cidadão, onde surgem questões também como se há algum problema de semântica, de conceito, falta de entendimento do termo ou uma economia da concretude e aplicabilidade. Bem como, se há cidadãos de primeira, segunda e terceira categoria. Anacronismos ou resgates dos significados e sentidos? E o que dizer da exclusão das mulheres, negros, indígenas, crianças e outros da investidura como cidadãos? Logo, o trabalho em tela é de ordem Bibliográfica, de Revisão da Literatura e abarcando áreas, elementos, instrumentos e aspectos da historiografia, filosofia da linguagem, análises do discurso, sociologia e da antropologia social e cultural. (shrink)

By using multilevel mediation involving 322,589 posts made by 384 musicians over 104 weeks, we simultaneously analyze the short-term and long-term effects of charity-related signaling on sales, with social media engagement as the mediator. Specifically, we compare the effects of charity-related signals with those of two other types of signals: mission-related (i.e., promoting music and commercial products) and non-mission-related (i.e., other posts that do not relate to the other two categories). In the short term, the indirect effect of using charity (...) signaling on sales (through engagement) is positive, though smaller than the effects of mission-related and non-mission related signals. However, in the long term, the indirect effect of regularly using charity-related signaling on sales (through long-term engagement) is greater than for the effects involving the other types of signals. We derive from these findings three main implications for the business ethics literature. First, in the long term, the mutual economic benefits of charity signaling should encourage both entities (i.e., musicians and charities) to go beyond short-term, transactional philanthropy. Second, because it is profitable for musicians to partner with charities in the long-term, our research argues that charities have extensive bargaining power in such co-branding decisions. Third, our research highlights the importance of studying the longitudinal aspects of co-branding decisions involving non-profit organizations; the financial outlook of such decisions could greatly vary depending on the timeframe (i.e., short vs. long). (shrink)

In this paper we propose a very general de nition of combination of logics by means of the concept of sheaves of logics. We first discuss some properties of this general definition and list some problems, as well as connections to related work. As applications of our abstract setting, we show that the notion of possible-translations semantics, introduced in previous papers by the first author, can be described in categorial terms. Possible-translations semantics constitute illustrative cases, since they provide a new (...) semantical account for abstract logical systems, particularly for many-valued and paraconsistent logics. (shrink)

One of the most expected properties of a logical system is that it can be algebraizable, in the sense that an algebraic counterpart of the deductive machinery could be found. Since the inception of da Costa's paraconsistent calculi, an algebraic equivalent for such systems have been searched. It is known that these systems are non self-extensional (i.e., they do not satisfy the replacement property). More than this, they are not algebraizable in the sense of Blok-Pigozzi. The same negative results hold (...) for several systems of the hierarchy of paraconsistent logics known as Logics of Formal Inconsistency (LFIs). Because of this, these logics are uniquely characterized by semantics of non-deterministic kind. This paper offers a solution for two open problems in the domain of paraconsistency, in particular connected to algebraization of LFIs, by obtaining several LFIs weaker than C1, each of one is algebraizable in the standard Lindenbaum-Tarski's sense by a suitable variety of Boolean algebras extended with operators. This means that such LFIs satisfy the replacement property. The weakest LFI satisfying replacement presented here is called RmbC, which is obtained from the basic LFI called mbC. Some axiomatic extensions of RmbC are also studied, and in addition a neighborhood semantics is defined for such systems. It is shown that RmbC can be defined within the minimal bimodal non-normal logic E+E defined by the fusion of the non-normal modal logic E with itself. Finally, the framework is extended to first-order languages. RQmbC, the quantified extension of RmbC, is shown to be sound and complete w.r.t. BALFI semantics. (shrink)

Dugundji proved in 1940 that most parts of standard modal systems cannot be characterized by a single finite deterministic matrix. In the eighties, Ivlev proposed a semantics of four-valued non-deterministic matrices (which he called quasi-matrices), in order to characterize a hierarchy of weak modal logics without the necessitation rule. In a previous paper, we extended some systems of Ivlev’s hierarchy, also proposing weaker six-valued systems in which the (T) axiom was replaced by the deontic (D) axiom. In this paper, we (...) propose even weaker systems, by eliminating both axioms, which are characterized by eight-valued non-deterministic matrices. In addition, we prove completeness for those new systems. It is natural to ask if a characterization by finite ordinary (deterministic) logical matrices would be possible for all those Ivlev-like systems. We will show that finite deterministic matrices do not characterize any of them. (shrink)

Diante dos embates e dilemas que vive o Brasil após o ano de 2016, fundamentalmente no que diz respeito a educação pública brasileira, o presente trabalho procurou se debruçar, refletir e verificar a posição e situação do educando brasileiro no cenário social nacional, e sobretudo escolar. Levamos em conta como base de configuração do indivíduo-sujeito e estudante sua identidade enquanto ser biopsicossocial, isso na perspectiva Aristotélica e Marxista de homem, tanto como ser dotado de razão, emoção, vontade, social, político, teleológico (...) (Aristóteles) e essencialmente ser de trabalho e histórico (Marx). (shrink)

Boolean-valued models of set theory were independently introduced by Scott, Solovay and Vopěnka in 1965, offering a natural and rich alternative for describing forcing. The original method was adapted by Takeuti, Titani, Kozawa and Ozawa to lattice-valued models of set theory. After this, Löwe and Tarafder proposed a class of algebras based on a certain kind of implication which satisfy several axioms of ZF. From this class, they found a specific 3-valued model called PS3 which satisfies all the axioms of (...) ZF, and can be expanded with a paraconsistent negation *, thus obtaining a paraconsistent model of ZF. The logic (PS3 ,*) coincides (up to language) with da Costa and D'Ottaviano logic J3, a 3-valued paraconsistent logic that have been proposed independently in the literature by several authors and with different motivations such as CluNs, LFI1 and MPT. We propose in this paper a family of algebraic models of ZFC based on LPT0, another linguistic variant of J3 introduced by us in 2016. The semantics of LPT0, as well as of its first-order version QLPT0, is given by twist structures defined over Boolean agebras. From this, it is possible to adapt the standard Boolean-valued models of (classical) ZFC to twist-valued models of an expansion of ZFC by adding a paraconsistent negation. We argue that the implication operator of LPT0 is more suitable for a paraconsistent set theory than the implication of PS3, since it allows for genuinely inconsistent sets w such that [(w = w)] = 1/2 . This implication is not a 'reasonable implication' as defined by Löwe and Tarafder. This suggests that 'reasonable implication algebras' are just one way to define a paraconsistent set theory. Our twist-valued models are adapted to provide a class of twist-valued models for (PS3,*), thus generalizing Löwe and Tarafder result. It is shown that they are in fact models of ZFC (not only of ZF). (shrink)

Two systems of belief change based on paraconsistent logics are introduced in this article by means of AGM-like postulates. The first one, AGMp, is defined over any paraconsistent logic which extends classical logic such that the law of excluded middle holds w.r.t. the paraconsistent negation. The second one, AGMo , is specifically designed for paraconsistent logics known as Logics of Formal Inconsistency (LFIs), which have a formal consistency operator that allows to recover all the classical inferences. Besides the three usual (...) operations over belief sets, namely expansion, contraction and revision (which is obtained from contraction by the Levi identity), the underlying paraconsistent logic allows us to define additional operations involving (non-explosive) contradictions. Thus, it is defined external revision (which is obtained from contraction by the reverse Levi identity), consolidation and semi-revision, all of them over belief sets. It is worth noting that the latter operations, introduced by S. Hansson, involve the temporary acceptance of contradictory beliefs, and so they were originally defined only for belief bases. Unlike to previous proposals in the literature, only defined for specific paraconsistent logics, the present approach can be applied to a general class of paraconsistent logics which are supraclassical, thus preserving the spirit of AGM. Moreover, representation theorems w.r.t. constructions based on selection functions are obtained for all the operations. (shrink)