L’analisi di un periodo storico attraverso la sua narrazione, sia esso il Medioevo o persino un’epoca più recente, considera una moltitudine di fonti, assai eterogenee e di forma non sempre immediata. In alcuni casi uno studioso può nutrire un interesse perfino secondario per un documento storico in sé, rivolgendo l’attenzione alle _motivazioni_ e al _contesto_ che hanno portato alla creazione e alla conservazione di una testimonianza, sia essa scritta, orale o iconografica. La lettura del passato apre diverse prospettive: è possibile (...) rintracciare un genere narrativo che più di ogni altro meglio descrive il Medioevo? In quale senso una fonte arricchisce la nostra conoscenza del passato? È sensato estendere lo studio a testimonianze non strettamente testuali o iconografiche, come le mappe geografiche? La riflessione che poggia su questi quesiti rivela un Medioevo in parte inventato, una fantasia che non è tuttavia l’ombra del passato storico, bensì il suo complemento. _Analysing an historical period, such as the Middle Ages, or a more recent era, through its narration, must take into consideration many heterogeneous sources, whose form is not always immediately identifiable. In some cases, scholars may even have a secondary interest in a specific historical document, preferring to study the _motivations_ and _context_ behind its creation and conservation of historical testimony, either written, spoken or iconographic._ _Interpreting the past opens up different perspectives: is it possible to determine a single narrative genre able to describe the Middle Ages better than others? In what sense does a historical source enrich our knowledge of the historical past? Does it make sense to include in the study of history, sources that are not strictly textual or iconographic, such as a geographical map?_ _Reflecting on these questions reveals an invented aspect of the Middle Ages, a fictional portrait that not only brings into view history__’s shadow but also complements it_. (shrink)

Nella Tempesta shakespeariana, le avversità della vita obbligano il povero Trinculo a condividere il giaciglio con qualcuno assai differente da lui. Si tratta di un’immagine che rappresenta il momento in cui due individui radicalmente diversi sono obbligati a percorrere il medesimo cammino per realizzare uno scopo comune. In questo lavoro, sostengo che alcune delle interpretazioni del misticismo medievale possono identificarsi in una forma di esperienza digitale basata sul World Wide Web, il quale, grazie al rapido sviluppo delle metodologie dell’Intelligenza Artificiale, (...) si appresta a diventare una nuova forma di misticismo. In Shakespeare’s Tempest, the misfortunes of life force poor Trinculo to share a bed with a stranger in order to survive. This image represents the moment where two persons, utterly different in their perspectives, share a path in order to achieve a common goal. In this article, I put forward the claim that some interpretations of Middle Ages philosophy can be identified as a form of digital experience based on the World Wide Web, which, thanks to the rapid development of Artificial Intelligence methodologies, opens up a new kind of mysticism for the future era. (shrink)

In Mathematics is megethology. Philosophia Mathematica, 1, 3–23) David K. Lewis proposes a structuralist reconstruction of classical set theory based on mereology. In order to formulate suitable hypotheses about the size of the universe of individuals without the help of set-theoretical notions, he uses the device of Boolos’ plural quantification for treating second order logic without commitment to set-theoretical entities. In this paper we show how, assuming the existence of a pairing function on atoms, as the unique assumption non expressed (...) in a mereological language, a mereological foundation of set theory is achievable within first order logic. Furthermore, we show how a mereological codification of ordered pairs is achievable with a very restricted use of the notion of plurality without plural quantification. (shrink)

Aim of the paper is to revise Boolos’ reinterpretation of second-order monadic logic in terms of plural quantification ([4], [5]) and expand it to full second order logic. Introducing the idealization of plural acts of choice, performed by a suitable team of agents, we will develop a notion of plural reference . Plural quantification will be then explained in terms of plural reference. As an application, we will sketch a structuralist reconstruction of second-order arithmetic based on the axiom of infinite (...) à la Dedekind, as the unique non-logical axiom. We will also sketch a virtual interpretation of the classical continuum involving no other infinite than a countable plurality of individuals. (shrink)

In Parts of Classes (1991) and Mathematics Is Megethology (1993) David Lewis defends both the innocence of plural quantification and of mereology. However, he himself claims that the innocence of mereology is different from that of plural reference, where reference to some objects does not require the existence of a single entity picking them out as a whole. In the case of plural quantification . Instead, in the mereological case: (Lewis, 1991, p. 87). The aim of the paper is to (...) argue that one—an innocence thesis similar to that of plural reference is defensible. To give a precise account of plural reference, we use the idea of plural choice. We then propose a virtual theory of mereology in which the role of individuals is played by plural choices of atoms. (shrink)

Molecular interactions are at the origin of life. How molecules get at different locations in the cell and how they locate their partners is a major and partially unresolved question in biology that is paramount to signaling. Spatio‐temporal correlations of fluctuating fluorescently tagged molecules reveal how they move, interact, and bind in the different cellular compartments. Methods based on fluctuations represent a remarkable technical advancement in biological imaging. Here we discuss image analysis methods based on spatial and temporal correlation of (...) fluctuations, raster image correlation spectroscopy, number and brightness, and spatial cross‐correlations that give us information about how individual molecules move in cells and interact with partners at the single molecule level. These methods can be implemented with a standard laser scanning microscope and produce a cellular level spatio‐temporal map of molecular interactions. (shrink)

Furio Jesi to Max Brod (Turin, le 15 Janvier 1965) - L'esploratore della Kabbalah. Scholem e i mistici - Furio Jesi in «La Stampa», 7 Marzo 1980 - Furio Jesi to Gershom Scholem (Turin, le 26 Novembre 1966) - Gershom Scholem to Furio Jesi (Jerusalem, 1.4.1973) - Furio Jesi to Gershom Scholem (Novara, 28.5.1973).

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)

The traditional standard theory of quantum mechanics is unable to solve the spin–statistics problem, i.e. to justify the utterly important “Pauli Exclusion Principle” but by the adoption of the complex standard relativistic quantum field theory. In a recent paper :858–873, 2015) we presented a proof of the spin–statistics problem in the nonrelativistic approximation on the basis of the “Conformal Quantum Geometrodynamics”. In the present paper, by the same theory the proof of the spin–statistics theorem is extended to the relativistic domain (...) in the general scenario of curved spacetime. The relativistic approach allows to formulate a manifestly step-by-step Weyl gauge invariant theory and to emphasize some fundamental aspects of group theory in the demonstration. No relativistic quantum field operators are used and the particle exchange properties are drawn from the conservation of the intrinsic helicity of elementary particles. It is therefore this property, not considered in the standard quantum mechanics, which determines the correct spin–statistics connection observed in Nature :858–873, 2015). The present proof of the spin–statistics theorem is simpler than the one presented in Santamato and De Martini :858–873, 2015), because it is based on symmetry group considerations only, without having recourse to frames attached to the particles. Second quantization and anticommuting operators are not necessary. (shrink)

I. In analytic philosophy, so-called 'univocalism' is the prevailing interpretation of the meaning of terms such as 'being' or 'existence', i.e. the thesis that these terms have only one meaning (see Russell, White, Quine, van Inwagen). But some analytical philosophers, inspired by Aristotle, maintain that 'being' has many senses (Austin, Ryle). II. Aristotle develops an argument in favour of this last thesis, observing that 'being' and 'one' cannot be a single genus, because they are predicated of their differences (Metaph. B (...) 3). III. But 'being' for Aristotle has also a unity, i.e. 'focal meaning', which coincides with substance (Metaph. Γ 2), and substance has not only an ontological priority, but also a logical priority, in respect to the other beings, as was shown by G. E. L. Owen. IV. This 'focal meaning' cannot be identified with primary substance, i.e. with the unmovable mover, as some interpreters pretend, because this latter has only an ontological, not a logical, priority in respect to the world. V. The impossibility of this interpretation results from Aristotle's rejection of an essence and a substance of being (Metaph. B 4), i.e. the rejection of what the Christian philosophers called esse ipsum subsistens. (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)

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)

In Categories 12 (14b11–22), Aristotle famously claims that [1] true sentences and reality stand in a mutually implicative relationship, and that [2] reality causes the truth of sentences but not vice versa. In this paper, I first argue that Boethius’ reading of the above passage led medieval logicians to assess [1] and [2] within the framework of a theory of consequence. Then, I consider two important questions raised by Boethius and later logicians in relation to [1] and [2], and, namely, (...) whether the implication described in [1] really satisfies the requirement for consequence, and whether the truthmaking relation posited in [2] can be boiled down to the relation of consequence. Boethius himself, I argue, answered affirmatively to both questions and thus (much like some contemporary truthmaker theorists) committed himself to an account of truthmaking as entailment. I then consider criticisms to Boethius’ account found in the writings of William of Champeaux, two anonymous authors connected to the school of Jocelyn of Soissons, Peter Abelard, and the author of the Ars Meliduna. Here, I argue that the emergence of a concern for relevance drives the need for abandoning Boethius’ account as well as his conception of truthmaking as entailment. (shrink)

Over the past two decades, virtue ethicists have begun to devote increasing attention to applied ethics. In particular, the application of virtue ethical frameworks to the environmental ethics debate has flourished. This chapter reviews recent contributions to the literature in this field and highlights some strengths and weaknesses of thinking about climate change through a virtue ethical lens. Section “Two Benefits of Virtue Ethical Approaches to Climate Change” explores two benefits of applying virtue ethics to climate change: (a) we can (...) better capture the phenomenology of our moral experience, and (b) we avoid the problem of inconsequentialism. Section “A Catalogue of Environmental Virtues” analyzes various practical proposals that have been put forward in the form of specific environmental virtues. Section “An Objection to Virtue-Oriented Approaches to Climate Change” reconstructs a fundamental objection to the idea of using a virtue ethical normative approach to tackling the urgent and imminent dangers of climate change. (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.

Moving from a cinematic reinterpretation of Borges’s Library of Babel, I attempt to provide a new answer to the old ontological question: “What kind of being is a film?”. This answer, which takes into account the coming of digital era, is developed through a comparison with Carroll’s philosophy of motion pictures. While discussing, criticizing and trying to complete his theory, I will examine the concept of a film under four different aspects: as a material object, as an ideal object, as (...) a mental object, and as a social object. Finally, our ontology of film will be applied to clarify some traditional theoretical dualisms: i.e. film vs. reality, film vs. narration, film vs. discourse, film vs. art. (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)

Diachronic perceptual atomism is the view that the contents of experience do not involve temporal relations between non-simultaneous events, such as motion, succession, or duration, but only 'snapshots' of the world. Traditionally, atomism has not been a very popular view. Indeed, many philosophers think that it is obviously false and that the main debate about time consciousness takes place between models which reject atomistic commitments. This antiatomistic sentiment can be traced back to William James's slogan that 'a succession of feelings, (...) in and of itself, is not a feeling of succession'. In this paper I argue, first, that the arguments typically launched against atomism in the spirit of James's slogan fail; and second, that the viability of atomism depends on what the conditions for a mental event's being an experience are. In particular, I argue that if a mental event is an experience only if it fulfils certain downstream conditions, which concern the role of the event in the subject's cognitive life, then atomism fails. Otherwise, it is in fact a viable and in many ways attractive view. It follows from my discussion that, contrary to popular belief, atomism is by no means obviously false. Rather, its viability depends on one's further views about the relationship between experience and cognition. (shrink)

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.

Both perception and imagination seem to play a crucial role in our engagement with fiction films but whether they really do so, and which role they possibly play, is controversial. On the one hand, a fiction film, as film, is a depiction that invites us to perceive the events portrayed. On the other hand, as fiction, it invites us to imagine the story told. Thus, after watching the film Alien, one might say that one saw Ripley fighting the monster but (...) one might also say that one imagined Ripley fighting the monster. Are these two reports compatible? If they are, how can we combine them so to make sense of them? If, instead, they are not, which of them should we give up? (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)

In the first decades of the twentieth century, many philosophers and philosophical movements attempted to make philosophy scientific by analogy with science. Such attempts vary with respect to the strategies adopted for implementing the analogy. In this article, I single out the specificity of logical empiricism’s strategy, by comparing it to some of its most relevant contemporary scientific philosophies, such as Russell’s method of analysis, Husserl’s phenomenology, neo-Kantianism, and American pragmatism. Logical empiricism sees philosophy as continuous with science, by reducing (...) the problems of philosophy to problems in mathematical logic. The other scientific philosophies postulate a specificity of philosophy, by maintaining a special domain for it and also a specific methodology, while requiring this methodology to be scientific in a manner analogous to the general method of the special sciences. I argue that this distinction helps to revise and possibly to settle some of the debates concerning our understanding of both the genealogy and the development of the movement, such as the conjectural derivation of its scientific philosophy from Russell’s analytic philosophy or from a special brand of Austrian philosophy and the complex relationship with its German and American contemporaries. (shrink)

. “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)

Esta traducción al español corresponde a la intervención oral del Profesor Enrico Berti en el Istituto Italiano per gli Studi Filosofici el 13 junio de 2017. Berti es profesor emérito de la Universidad de Padua, con ocasión de la publicación de su traducción de la Metafísica de Aristóteles en el 2017, en el encuentro de estudio La metafísica de Aristóteles, en el Instituto de Estudios Filosóficos de Nápoles. Considero que al hacerlo se contribuye a la divulgación de esta nueva (...) traducción entre la comunidad hispanohablante. (shrink)

Numenius is an author who straddles the line between Middle Platonism and Neoplatonism. In this contribution, I focus on the differences between the second and the third God, which emerge from analyses of the relevant fragments. Numenius emphasizes, on several occasions, how the second God (i.e., the demiurge) has a dual nature. In this paper, I investigate the role of the demiurge in Numenius and examine in what sense the second and third God are “one.” On the one hand, Numenius (...) seems to be stressing the unity of the second and third levels of reality, but on the other hand, he also appears to be differentiating them. The present analyses concentrate on fragments 19F, 24F, 29T and 30T (respectively 11, 16, 21, and 22 in des Places’ edition). My purpose is to demonstrate that, according to Numenius, the second and the third God are one because they both can be regarded as demiurgic. Thus, Numenius conceives a kind of “double demiurgy,” which preserves the distinction between the second and the third God, who are distinguished from an ontological point of view, but who, at the same time, share a demiurgic function. The second God is then the paradigm, whereas the third God is immanent in matter as a ruling principle of the cosmos, which is similar to the World Soul, as he operates on matter in order to make it rationally ordered. (shrink)

Collective entities and collective relations play an important role in natural language. In order to capture the full meaning of sentences like The Beatles sing Yesterday, a knowledge representation language should be able to express and reason about plural entities — like the Beatles — and their relationships — like sing — with any possible reading (cumulative, distributive or collective).In this paper a way of including collections and collective relations within a concept language, chosen as the formalism for representing the (...) semantics of sentences, is presented. A twofold extension of theA–C concept language is investigated: (1) special relations introduce collective entities either out of their components or out of other collective entities, (2) plural quantifiers on collective relations specify their possible reading. The formal syntax and semantics of the concept language is given, together with a sound and complete algorithm to compute satisfiability and subsumption of concepts, and to compute recognition of individuals. (shrink)

The present paper deals with natural intuitionistic semantics for intuitionistic logic within an intuitionistic metamathematics. We show how strong completeness of full first order logic fails. We then consider a negationless semantics à la Henkin for second order intuitionistic logic. By using the theory of lawless sequences we prove that, for such semantics, strong completeness is restorable. We argue that lawless negationless semantics is a suitable framework for a constructive structuralist interpretation of any second order formalizable theory (classical or intuitionistic, (...) contradictory or not). (shrink)