In this paper we consider the importance of trust, in the context of economic institutions, and specifically with respect to questions about market mechanisms and the role of social interactions. We review recent advances in institutional economics closely tied to developments in philosophy of mind and cognitive science, involving extended and enactive cognition. We argue that the analysis of different conceptions of institutional mind extension, in Denzau and North’s shared mental models, Clark’s extended mind, and a more enactive approach that (...) emphasizes the importance of social interaction and personal relationships, can benefit from Kathrine Hawley’s distinction between reliability and trust. Institutional arrangements based solely on the reliability of impersonal mechanisms can lead to a variety of social pathologies and, at the extreme, a form of cognitive atrophy, all of which can undermine the sustainability of institutions. Even if trust comes with risks and some degree of unpredictability, it turns out to be a necessary glue-like ingredient in the constitution of social institutions. (shrink)

In Mathematics is megethology Lewis reconstructs set theory combining mereology with plural quantification. He introduces megethology, a powerful framework in which one can formulate strong assumptions about the size of the universe of individuals. Within this framework, Lewis develops a structuralist class theory, in which the role of classes is played by individuals. Thus, if mereology and plural quantification are ontologically innocent, as Lewis maintains, he achieves an ontological reduction of classes to individuals. Lewis’work is very attractive. However, the alleged (...) innocence of mereology and plural quantification is highly controversial and has been criticized by several authors. In the present paper we propose a new approach to megethology based on the theory of plural reference developed in To be is to be the object of a possible act of choice. Our approach shows how megethology can be grounded on plural reference without the help of mereology. (shrink)

The volume collects a series of groundbreaking new studies which delve into the work of Franz Rosenzweig and assess its enduring yet still unacknowledged value for Epistemology, Aesthetics, Moral and Political Philosophy, going far beyond Theology and Philosophy of Religion.

This paper proposes a new dialetheic logic, a Dialetheic Logic with Exclusive Assumptions and Conclusions ), including classical logic as a particular case. In \, exclusivity is expressed via the speech acts of assuming and concluding. In the paper we adopt the semantics of the logic of paradox extended with a generalized notion of model and we modify its proof theory by refining the notions of assumption and conclusion. The paper starts with an explanation of the adopted philosophical perspective, then (...) we propose our \ logic. Finally, we show how \ supports the dialetheic solution of the liar paradox. (shrink)

Marcel Proust’s In Search of Lost Time, raises an interesting philosophical issue, namely, how can one be in touch with past things if they no longer exist? It provides us with a way to address this issue by outlining an ontological view according to which past things still exist within a four-dimensional world. Although one cannot be in touch with past things by means of ordinary perception, one can do so by combining perception and memory. In this sense, In Search (...) of Lost Time helps us to reconcile a four-dimensionalist ontology according to which things have both spatial and temporal parts with a realist phenomenology according to which experience gives us access to things as they are. In so doing, Proust’s masterpiece allows us to shed some light on what it means for a subject of experience to exist in a four-dimensional world. (shrink)

In this brief paper, starting from recent works, we analyze from conceptual point of view this basic question: can be the nature of quantum entangled states interpreted ontologically or epistemologically? According some works, the degrees of freedom of quantum systems permit us to establish a possible classification between factorizables and entangled states. We suggest, that the "choice" of degree of freedom, even if mathematically justified introduces epistemic element, not only in the systems but also in their classification. We retain, instead, (...) that there are not two classes of quantum states, entangled and factorizables, but only a single classes of states: the entangled states. In fact, the factorizable states become entangled for a different choice of their degrees of freedom. In the same way, there are not partitions of quantum system which have an ontological superior status with respect to any other. For all these reasons, both mathematical tools utilized are responsible of improper classification of quantum systems. Finally, we argue that we cannot speak about a classification of quantum systems: all the quantum states exhibit a unique objective nature, they are all entangled states. (shrink)

Artificial intelligent technologies are utilized to provide online personalized recommendations, suggestions, or prompts that can influence people's decision-making processes. We call this AI-enhanced nudging (or AI-nudging for short). Contrary to the received wisdom we claim that AI-enhanced nudging is not necessarily morally problematic. To start assessing the risks and moral import of AI-nudging we believe that we should adopt a risk-factor analysis: we show that both the level of risk and possibly the moral value of adopting AI-nudging ultimately depend on (...) the complexity of the “moral situation” in which various risk-factors play a causal role in determining levels of uncertainty. (shrink)

This is a contribution to the controversy which of individual or collective intentionality is more fundamental. I call it the fundamentality-question. In a first step, I argue that it is really two questions. One is about sense and one about reference. The first is: Can one grasp or understand the concept individual intentionality and, correspondingly, individuality, on the one hand, without grasping or understanding the concept collective intentionality and, correspondingly, collectivity, on the other? The second is: Can the concept individual (...) intentionality and corresponding concept of individuality, on the one hand, refer to something without the concept of collective intentionality and corresponding concept of collectivity referring to something, on the other? Simplifying somewhat, this elaborated fundamentality-question admits of nine answers. In a second step, I pursue a tentative answer to the elaborated fundamentality-question. Given a disambiguation of individuality and, correspondingly, individual intentionality, the answer is the combination of claims that individuality and individual intentionality in one sense is fundamental in reference-dependence but that collectivity and collective intentionality is fundamental in reference-dependence in the other sense of individuality, while collectivity and collective intentionality is in both cases fundamental in sense-dependence. (shrink)

In the 1951 Gibbs lecture, Gödel asserted his famous dichotomy, where the notion of informal proof is at work. G. Priest developed an argument, grounded on the notion of naïve proof, to the effect that Gödel’s first incompleteness theorem suggests the presence of dialetheias. In this paper, we adopt a plausible ideal notion of naïve proof, in agreement with Gödel’s conception, superseding the criticisms against the usual notion of naïve proof used by real working mathematicians. We explore the connection between (...) Gödel’s theorem and naïve proof so understood, both from a classical and a dialetheic perspective. (shrink)

John Rawls and Simone Weil presented two distinct conceptions of political justice, aimed at articulating a common ethos in an inherently heterogeneous society. The terms of the former, chiefly concerned with the distribution of primary goods, underwrite much of today's Western democracies political liberalism. The terms of the latter, chiefly concerned with the way interaction is organised in social activities in view of the body and soul's balancing pairs of needs, are less well known. We explain the sense in which (...) the overlapping consensus in Weil's notion of political justice is “thicker”, and may thus deserve more attention – alongside that of Rawls – for substantiating a democratic ethos within political liberalism. (shrink)

The presence of Persian sources in Nietzsche’s Thus Spoke Zarathustra has been a topic of debate for decades. This paper summarizes the main results of a comparative study of Nietzsche and the ancient Persian scripture Avestā. In addition to several secondary sources Nietzsche repeatedly encountered, there is strong evidence that he read Johann Friedrich Kleuker’s German translation of the Avestā texts reconstructed by Abraham Hyacinthe Anquetil-Duperron. Analyzing Nietzsche’s diverse sources of Zoroastrianism as well as his knowledge of this religion, this (...) paper shows that many metaphors, references and claims in both Thus Spoke Zarathustra and in Nietzsche’s notebooks can be traced back to Zoroastrianism. Taking these sources into consideration contributes significantly to our understanding of one of Nietzsche’s major works. (shrink)

Enrico Berti has had a profound influence on the birth and development of Italian studies in ancient philosophy. His sizable work has shaped a great part of Italian studies on Aristotle and other ancient philosophers. To celebrate him and express their gratitude for his work, some of his disciples, under the impulse of the late Franco Volpi, have brought together a volume in his honour, requesting the participation of some foreign scholars particularly close to him. The volume comprises essays (...) by Pierre Aubenque, Jonathan Barnes, Terence H. Irwin, Tomás Calvo-Martínez, Jaap Mansfeld, Pierre Pellegrin, Gerhard Seel and Alejandro G. Vigo. The main themes are Aristotle's metaphysics and practical philosophy. A Selected Bibliography by E. Berti himself completes the volume."--Publisher's website. (shrink)

v. 1. Demoniaco e problema del male. Umanesimo e pensiero simbolico. Tempo e temporalità -- v. 2. Ermeneutica e demitizzazione. Storia della filosofia. Filosofia della religione.

Enrico Müller legt hier die erste philosophische Gesamtdarstellung zur Bedeutung der Griechen für Nietzsches Denken vor. Er zeigt, wie sich in Auseinandersetzung mit dem Griechentum Nietzsches eigene Philosophie entwickelte, und problematisiert deren Abgrenzungen von der Logosphilosophie der griechischen Klassik. Müller kommt dabei zu dem Schluss, dass auch Nietzsches Philosophie letztlich auf die Vorgaben der sokratisch-platonischen Dialektik angewiesen bleibt.

. “The Notebook Corner,” edited by Enrico Pattaro, makes its first appearance here as a new section of Ratio Juris. This new section can be described in a sense as an offshoot of the project for A Treatise of Legal Philosophy and General Jurisprudence, a work still in progress composed of five theoretical volumes and six historical ones. The theoretical volumes receive a brief presentation in the paper immediately below, with a specific focus on Volume 1, entitled The Law (...) and the Right: A Reappraisal of the Reality That Ought to Be. This volume is then discussed as well by Rosaria Conte and Cristiano Castelfronchi in the second paper of this “Notebook Corner”. (shrink)

Regardless of whether one agrees or disagrees with Stacie Friend’s claim that fiction is a genre, her notion of genre can be fruitfully applied to a paradigmatic genre such as science fiction. This article deploys Friend’s notion of genre in order to improve the influential characterization of science fiction proposed by Darko Suvin and to defend it from a criticism recently raised by Simon Evnine. According to Suvin, a work of science fiction must concern “a fictional ‘novum’ validated by cognitive (...) logic.” While Suvin conceives of his characterization as a necessary and sufficient condition for membership in the genre, I propose to cast the notions of “fictional novum” and “cognitive validation” as standard features of the genre, which works of science fiction should have but might lack. I argue that this amended version of Suvin’s characterization can better account for two basic properties of science fiction as a genre, namely its historicity and its relevance to appreciation. Lastly, I show that the amended version can shed some light on the affinity between works of science fiction and philosophical thought experiments. (shrink)

Works of art are usually meant to elicit psychological effects from their audiences whereas paradigmatic technical artifacts such as hammers or cars are rather meant to produce physical effects when used. This suggests that works of art and technical artifacts are sharply different entities. However, recent developments in the cognitive sciences and the philosophy of technology have individuated special artifacts, namely cognitive and affective artifacts, which also generate psychological effects. In particular, affective artifacts, which have the capacity to alter the (...) affective condition of agents, seem to share crucial features with works of art. Can we subsume works of art under that kind? I will argue that we cannot. Still, comparing art with affective artifacts will help us to clarify the relationship between art and technology, and to introduce a new category, namely the experiential artifact, which can properly encompass works of art. (shrink)

This paper develops Richard Wollheim’s claim that the proper appreciation of a picture involves not only enjoying a seeing-in experience but also abiding by a standard of correctness. While scholars have so far focused on what fixes the standard, thereby discussing the alternative between intentions and causal mechanisms, the paper focuses on what the standard does, that is, establishing which kinds, individuals, features and standpoints are relevant to the understanding of pictures. It is argued that, while standards concerning kinds, individuals (...) and features can be relevant also to ordinary perception, standards concerning standpoints are specific to pictorial experience. Drawing on all this, the paper proposes an ontology of depiction according to which a picture is constituted by both its visual appearance and its standard of correctness. (shrink)

This paper considers two issues raised by the claim that fictional characters are abstract artifacts. First, given that artifacts normally have functions, what is the function of a fictional character? Second, given that, in experiencing works of fictions, we usually treat fictional characters as concrete individuals, how can such a phenomenology fit with an ontology according to which fictional characters are abstract artifacts? I will indirectly address the second issue by directly addressing the first one. For this purpose, I will (...) rely on the notion of a mental file. I will argue that the function of fictional characters is the generation of mental files of a special kind. I will show that our experience of fictional characters as concrete individuals depends on the kind of mental files that are generated by fictional characters as abstract artifacts. I will conclude that an appreciator of a work of fiction can open two files about a certain fictional character; one about the character as an individual in the fictional world, and the other about the character as an abstract artifact in the actual world. In this sense, our relation to a fictional character is characterized by a duality of files or ‘twofileness’. (shrink)

Conceiving of fictional characters as types allows us to reconcile intuitions of sameness and difference about characters such as Batman that appear in different fictional worlds. Sameness occurs at the type level while difference occurs at the token level. Yet, the claim that fictional characters are types raises three main issues. Firstly, types seem to be eternal forms whereas fictional characters seem to be the outcome of a process of creation. Secondly, the tokens of a type are concrete particulars in (...) the actual world whereas the alleged tokens of a fictional character are concrete particulars in a fictional world. Thirdly, many fictional characters, unlike Batman, only appear in one work of fiction, and therefore one can wonder whether it does make sense to treat them as types. The main aim of this paper is to address these issues in order to defend a creationist account of fictional characters as types. (shrink)

The idea of an ?inversion principle?, and the name itself, originated in the work of Paul Lorenzen in the 1950s, as a method to generate new admissible rules within a certain syntactic context. Some fifteen years later, the idea was taken up by Dag Prawitz to devise a strategy of normalization for natural deduction calculi (this being an analogue of Gentzen's cut-elimination theorem for sequent calculi). Later, Prawitz used the inversion principle again, attributing it with a semantic role. Still working (...) in natural deduction calculi, he formulated a general type of schematic introduction rules to be matched ? thanks to the idea supporting the inversion principle ? by a corresponding general schematic Elimination rule. This was an attempt to provide a solution to the problem suggested by the often quoted note of Gentzen. According to Gentzen ?it should be possible to display the elimination rules as unique functions of the corresponding introduction rules on the basis of certain requirements?. Many people have since worked on this topic, which can be appropriately seen as the birthplace of what are now referred to as ?general elimination rules?, recently studied thoroughly by Sara Negri and Jan von Plato. In this study, we retrace the main threads of this chapter of proof-theoretical investigation, using Lorenzen's original framework as a general guide. (shrink)