In this paper we propoee a logic programming language which supports hypothetical updates together with integrity constraints. The language makes use of a revision mechanism, which is needed to restore consistency when an update violates some integrity constraint. The revision policy adopted is based on the simple idea that more recent information is preferred to earlier one. We show how this language can be used to represent and perform several types of defeasible reasoning. We develop a logical characterization of the (...) language in a three-valued conditional logic, by introducing a completion construction. We show that the operational semantics is sound and complete with respect to the completion construction. (shrink)

Following Galileo's trial of 1633, the Jesuit theologian Melchior Inchofer, author of the most negative reports used by the Roman Inquisition against Galileo, repudiated the Copernicans for the ‘heresy’ of the soul of the world (anima mundi), in an unpublished manuscript. I show that Inchofer's arguments applied far more to the beliefs of Giordano Bruno than to those of Galileo. Since antiquity, various Christian authorities had repudiated several beliefs about the anima mundi as ‘heretical’, hence I review their critiques (...) against Pythagoras, Origen, and Peter Abelard, for allegedly asserting animistic beliefs about the Earth, or a universal spirit, or that souls move the heavenly bodies. Still, in the Renaissance such beliefs were defended by several advocates of Copernicus, including Bruno, William Gilbert, Johannes Kepler, and Philips Lansbergen, who all claimed that Earth moves because it has a soul. By comparing Inchofer's works and some of the Roman Inquisition's earlier censures against Bruno, I argue that the repudiation by many prominent Catholic theologians of pagan notions of the anima mundi as heretical contributed partly to the later theological opposition to the Copernicans. (shrink)

La production philosophique et littéraire de Giordano Bruno (1548-1600) est traversée par un questionnement constant sur les relations réciproques entre texte et lecteur — l’un se construisant systématiquement par rapport à l’autre. Dans cet article, nous nous concentrerons en particulier sur la comédie italienne Chandelier (1582) et sur le traité mnémotechnique Cantus Circæus (1582) pour montrer comment le rapport texte/lecteur est essentiel pour saisir les implications philosophiques des deux textes. À la Renaissance, la lecture est un véritable exercice d’assimilation (...) et l’ars memoriæ se configure comme un outil pour agir sur l’âme humaine. À travers un lien très étroit avec le lecteur, les œuvre de Bruno visent ainsi à renouveler l’être humain et à conformer son intellect à l’opus magnum de l’univers. (shrink)

The article presents another of those ingenious mind, rebels to the yoke of religion, typical of the Italian Renaissance. Converted to Calvinism and therefore condemned to death by the Inquisition, Guglielmo Grataroli (1516-1568) became a defender of heterodox doctrine. His translation of a report of the Waldensian massacre in Calabria became part of the history of Protestant martyrs. He was the author of numerous treatises on various subjects, for which he widely used the works of Giovanni Michele Alberto da (...) Carrara, Antoine Mizauld and Gerolamo Cardano. The perfect correspondence of the topics discussed makes it probable that Giordano Bruno knew his writings. In particular, the De mutatione temporum, eiusque signis perpetuis may have inspired the De’ segni de’ tempi, a Bruno’s lost opera. This allows us to conjecture the content of the work with greater reliability. (shrink)

Cultural evolution studies are characterized by the notion that culture evolves accordingly to broadly Darwinian principles. Yet how far the analogy between cultural and genetic evolution should be pushed is open to debate. Here, we examine a recent disagreement that concerns the extent to which cultural transmission should be considered a preservative mechanism allowing selection among different variants, or a transformative process in which individuals recreate variants each time they are transmitted. The latter is associated with the notion of “cultural (...) attraction”. This issue has generated much misunderstanding and confusion. We first clarify the respective positions, noting that there is in fact no substantive incompatibility between cultural attraction and standard cultural evolution approaches, beyond a difference in focus. Whether cultural transmission should be considered a preservative or reconstructive process is ultimately an empirical question, and we examine how both preservative and reconstructive cultural transmission has been studied in recent experimental research in cultural evolution. Finally, we discuss how the relative importance of preservative and reconstructive processes may depend on the granularity of analysis and the domain being studied. (shrink)

Cultural evolution researchers use transmission chain experiments to investigate which content is more likely to survive when transmitted from one individual to another. These experiments resemble oral storytelling, wherein individuals need to understand, memorize, and reproduce the content. However, prominent contemporary forms of cultural transmission—think an online sharing—only involve the willingness to transmit the content. Here I present two fully preregistered online experiments that explicitly investigated the differences between these two modalities of transmission. The first experiment (_N_ = 1,080 participants) (...) examined whether negative content, information eliciting disgust, and threat-related information were better transmitted than their neutral counterpart in a traditional transmission chain setup. The second experiment (_N_ = 1,200 participants) used the same material, but participants were asked whether or not they would share the content in two conditions: in a large anonymous social network or with their friends, in their favorite social network. Negative content was both better transmitted in transmission chain experiments and shared more than its neutral counterpart. Threat-related information was successful in transmission chain experiments but not when sharing, and finally, information eliciting disgust was not advantaged in either. Overall, the results present a composite picture, suggesting that the interactions between the specific content and the medium of transmission are important and, possibly, that content biases are stronger when memorization and reproduction are involved in the transmission—as in oral transmission—than when they are not—as in online sharing. Negative content seems to be reliably favored in both modalities of transmission. (shrink)

Conflict of interests in medicine are typically taken to be financial in nature: it is often assumed that a COI occurs when a healthcare practitioner’s financial interest conflicts with patients’ interests, public health interests, or professional obligations more generally. Even when non-financial COIs are acknowledged, ethical concerns are almost exclusively reserved for financial COIs. However, the notion of “interests” cannot be reduced to its financial component. Individuals in general, and medical professionals in particular, have different types of interests, many of (...) which are non-financial in nature but can still conflict with professional obligations. The debate about healthcare delivery has largely overlooked this broader notion of interests. Here, we will focus on health practitioners’ moral or religious values as particular types of personal interests involved in healthcare delivery that can generate COIs and on conscientious objection in healthcare as the expression of a particular type of COI. We argue that, in the healthcare context, the COIs generated by interests of conscience can be as ethically problematic, and therefore should be treated in the same way, as financial COIs. (shrink)

Os principais objetivos do artigo podem ser formulados da seguinte forma: a) Hegel tem uma noção forte de contingência. Contingência não é, para ele, a ausência simples de necessidade, tampouco subdeterminidade simples. Contingencia é uma noção original, que tem o mesmo peso e a mesma dignidade lógica e metafísica que a noção de necessidade; b) essa noção forte de contingência é decisiva para a concepção de Hegel de subjetividade na medida em que pode ser remetida a sua filosofia do real. (...) À diferença do que é assumido em muitas outras interpretações comuns de Hegel, sugiro que a possibilidade de ir da necessidade à contingência caracteriza uma parte essencial da liberdade subjetiva, tanto quanto a possibilidade de ir contingência à necessidade. Isso tem consequências importantes, especialmente na filosofia da história, que aparece não como apriorística ou dogmática, mas como aberta à contingencia ; e, c) consistentemente com o reconhecimento da irredutibilidade da contingencia à conceitos a priori, Hegel também reconhece a necessidade da narração não-filosófica da contingência e nos fornece algumas pistas importantes sobre isso e sobre sua relação com a filosofia. Ao longo da minha argumentação dessas três teses, espero fornecer evidências para a tese de que a construção dogmática na filosofia da história de Hegel pode ser atenuada pela referência ao entendimento de Hegel da contingência. Em uma escala geral, isso também mostra que o fundamento lógico da filosofia do real de Hegel não pode ser abandonado sem que se prejudique o potencial da filosofia de Hegel de contribuir aos debates filosóficos contemporâneos. Meu argumento estrutura-se como se segue. Eu irei, primeiramente, comentar algumas passagens da Ciência da Lógica de Hegel do começo da Lógica Subjetiva sobre a lógica da contingência e a presença da contingência na estrutura lógica da subjetividade. Eu irei, então, ilustrar, com referência a um caso específico, o papel desempenhado pela contingência na filosofia hegeliana da história. Na última seção, discutirei a relação entre verdade e contingência, por um lado, e filosofia e narratividade, por outro, tentando esboçar as principais linhas da narração da contingência sob bases hegelianas. (shrink)

We address the issue of whether, why and under what conditions, quarantine and isolation are morally justified, with a particular focus on measures implemented in the developing world. We argue that the benefits of quarantine and isolation justify some level of coercion or compulsion by the state, but that the state should be able to provide the strongest justification possible for implementing such measures. While a constrained form of consequentialism might provide a justification for such public health interventions, we argue (...) that a stronger justification is provided by a principle of State Enforced Easy Rescue: a state may permissibly compel individuals to engage in activities that entail a small cost to them but a large benefit to others, because individuals have a moral duty of easy rescue to engage in those activities. The principle of State Enforced Easy Rescue gives rise to an Obligation Enforcement Requirement: the state should create the conditions such that submitting to coercive or compulsive measures becomes a fundamental moral duty of individuals, i.e. a duty of easy rescue. When the state can create such conditions, it has the strongest justification possible for implementing coercive or compulsive measures, because individuals have a moral duty to temporarily relinquish the rights that such measures would infringe. Our argument has significant implications for how public health emergencies in the developing world should be tackled. Where isolation and quarantine measures are necessary, states or the international community have a moral obligation to provide certain benefits to those quarantined or isolated. (shrink)

Technological developments involving robotics and artificial intelligence devices are being employed evermore in elderly care and the healthcare sector more generally, raising ethical issues and practical questions warranting closer considerations of what we mean by “care” and, subsequently, how to design such software coherently with the chosen definition. This paper starts by critically examining the existing approaches to the ethical design of care robots provided by Aimee van Wynsberghe, who relies on the work on the ethics of care by Joan (...) Tronto. In doing so, it suggests an alternative to their non-principled approach, an alternative suited to tackling some of the issues raised by Tronto and van Wynsberghe, while allowing for the inclusion of two orientative principles. Our proposal centres on the principles of autonomy and vulnerability, whose joint adoption we deem able to constitute an original revision of a bottom-up approach in care ethics. Conclusively, the ethical framework introduced here integrates more traditional approaches in care ethics in view of enhancing the debate regarding the ethical design of care robots under a new lens. (shrink)

The rapid development of vaccines against COVID‐19 represents a huge achievement, and offers hope of ending the global pandemic. At least three COVID‐19 vaccines have been approved or are about to be approved for distribution in many countries. However, with very limited initial availability, only a minority of the population will be able to receive vaccines this winter. Urgent decisions will have to be made about who should receive priority for access. Current policy in the UK appears to take the (...) view that those who are most vulnerable to COVID‐19 should get the vaccine first. While this is intuitively attractive, we argue that there are other possible values and criteria that need to be considered. These include both intrinsic and instrumental values. The former are numbers of lives saved, years of life saved, quality of the lives saved, quality‐adjusted life‐years (QALYs), and possibly others including age. Instrumental values include protecting healthcare systems and other broader societal interests, which might require prioritizing key worker status and having dependants. The challenge from an ethical point of view is to strike the right balance among these values. It also depends on effectiveness of different vaccines on different population groups and on modelling around cost‐effectiveness of different strategies. It is a mistake to simply assume that prioritizing the most vulnerable is the best strategy. Although that could end up being the best approach, whether it is or not requires careful ethical and empirical analysis. (shrink)

We provide ethical criteria to establish when vaccine mandates for healthcare workers are ethically justifiable. The relevant criteria are the utility of the vaccine for healthcare workers, the utility for patients (both in terms of prevention of transmission of infection and reduction in staff shortage), and the existence of less restrictive alternatives that can achieve comparable benefits. Healthcare workers have professional obligations to promote the interests of patients that entail exposure to greater risks or infringement of autonomy than ordinary members (...) of the public. Thus, we argue that when vaccine mandates are justified on the basis of these criteria, they are not unfairly discriminatory and the level of coercion they involve is ethically acceptable—and indeed comparable to that already accepted in healthcare employment contracts. Such mandates might be justified even when general population mandates are not. Our conclusion is that, given current evidence, those ethical criteria justify mandates for influenza vaccination, but not COVID-19 vaccination, for healthcare workers. We extend our arguments to other vaccines. (shrink)

I argue that much philosophical discussion of moral disgust suffers from two ambiguities: first, it is not clear whether arguments for the moral authority of disgust apply to disgust as a consequence of moral evaluations or instead to disgust as a moralizing emotion; second, it is not clear whether the word ‘moral’ is used in a normative or in a descriptive sense. This lack of clarity generates confusion between ‘fittingness’ and ‘appropriateness’ of disgust. I formulate three conditions that arguments for (...) the moral authority of disgust need—but typically fail—to satisfy, in order to avoid (1) circularity, (2) the naturalistic fallacy, and (3) redundancy. These conditions are, respectively, (1) the identification of the direction of the causal relation between disgust and moral evaluation, (2) a demonstration that disgust is ‘fitting’ to morally relevant properties, and (3) a demonstration that disgust is ‘appropriate’ when elicited by these morally relevant properties. I will also suggest that, regardless of whether an argument for the moral authority of disgust can be made, it would be better to avoid the rather obscure term ‘moral disgust’. (shrink)

The nature of pre-reflective self-consciousness—viz., the putative non-inferential self-consciousness involved in unreflective experiences, has become the topic of considerable debate in recent analytic philosophy of consciousness, as it is commonly taken to be what makes conscious mental states first-personally given to its subject. A major issue of controversy in this debate concerns what pre-reflective self-consciousness is an awareness of. Some scholars have suggested that pre-reflective self-consciousness involves an awareness of the experiencing subject. This ‘egological view’ is opposed to the ‘non-egological (...) view’, according to which the subject, in being pre-reflectively self-conscious, is just aware of their own occurrent mental state. In this paper, I argue in favour of the egological view. The argument I develop is a qualified version of a line of reasoning originally provided by Rosenthal and builds on a proper clarification of the ontological status of token mental states. More precisely, I argue that token mental states are structured ‘fact-like’ entities having their subject among their constituents. Accordingly, one cannot be aware of one’s own occurrent mental state without thereby being aware of oneself. (shrink)

The aim of this essay is to show that Yann Martel’s Life of Pi can be read as illustrating what philosophers usually name as pragmatic arguments for religious belief. Ultimately, this seems to be the reason why, in the short prologue that accompanies the novel, Martel claims Life of Pi to be “a story to make you believe in God”. To put it briefly, these arguments claim that even conceding that the question of whether to believe that God exists or (...) that He does not exist cannot be decided upon the evidence we have, we are still justified to decide to believe in God because of the practical beneficial consequences this belief will bring to us. In Martel’s Life of Pi it is this kind of pragmatic reasoning that originates and what makes the “story with animals” preferable over the “story without animals.” I also point out that these arguments appear more convincing if they are not understood as referring to belief in the ordinary and common usage of the term, as the acceptance as being true the factual claim that the world is such that God does actually exist, but as referring to a subjective, non-truth-dependent way of understanding the world and of relating to it. I show that this is precisely the kind of conception of religious faith that is illustrated by the character of Pi through the novel. (shrink)

Translated from the Italian by Dorothy Bonchino-Demmler.

In this paper, I will first try to provide a new argument in favour of the contextualist position on the semantics/pragmatics divide. I will argue that many puns, notably multi-stable ones, cannot be dealt with in the non-contextualist way, i.e., as displaying a phenomenon that effectively involves wide context, the concrete situation of discourse, yet only in a pre-, or at least inter-, semantic sense. For, insofar as they involve ambiguous utterances rather than ambiguous sentences, these puns show that the (...) wide context affecting them has a semantic role: it provides many truth-conditions for a single utterance. Moreover, I will try to show that the contextualist can provide a unitary account of the general phenomenon of puns. On the one hand, this account explains multi-stable puns as well as those puns the non-contextualist claims to deal with successfully, i.e., the ones involving a speaker-induced removal of a well-grounded misunderstanding. On the other hand, it also explains zeugmatic puns, i.e., those involving an ‘impossible’ meaning. (shrink)

A slow study of the letters written by Nietzsche in the last five years of his conscious life shows a suffering man who trans-values the sorrow of his body recognizing it as both a face and a mask. The subject fades within history, art, science, within the time that becomes eternal through the death and beyond it, through the speech that becomes the seal of the world. Despite every insufficient reading which underlines the pathological feature in Nietzsche’s last writings madness (...) has been a real fiction: it became the Great Health in which “it’s finished” and the ego multiplies and vanishes in “all the names of History”. (shrink)

The aim of this paper is to discuss the way the videogame The Last of Us: Part II (Naughty Dog, 2020) manages to entice players to question the ethical adequacy of their own gaming behaviour.

Scientific realism is usually presented as if metaphysical realism (i.e. the thesis that there is a structured mind-independent external world) were one of its essential parts. This paper aims to examine how weak the metaphysical commitments endorsed by scientific realists could be. I will argue that scientific realism could be stated without accepting any form of metaphysical realism. Such a conclusion does not go as far as to try to combine scientific realism with metaphysical antirealism. Instead, it amounts to the (...) combination of the former with a weaker view, called quietism, which is agnostic on the existence of mind-independent structures. In Sect. 2, I will argue that the minimal claim that brings together every scientific realist view is devoid of any metaphysical commitment. In Sect. 3, I will define metaphysical realism and antirealism. Such work will be instrumental in providing a more precise statement of quietism. Finally (Sect. 4), I will argue that assuming quietism, it is still possible to make sense of the debate between scientific realists and antirealists. (shrink)