We need to understand the impossible. Francesco Berto and Mark Jago start by considering what the concepts of meaning, information, knowledge, belief, fiction, conditionality, and counterfactual supposition have in common. They are all concepts which divide the world up more finely than logic does. Logically equivalent sentences may carry different meanings and information and may differ in how they're believed. Fictions can be inconsistent yet meaningful. We can suppose impossible things without collapsing into total incoherence. Yet for the leading philosophical (...) theories of meaning, these phenomena are an unfathomable mystery. To understand these concepts, we need a metaphysical, logical, and conceptual grasp of situations that could not possibly exist: Impossible Worlds. This book discusses the metaphysics of impossible worlds and applies the concept to a range of central topics and open issues in logic, semantics, and philosophy. It considers problems in the logic of knowledge, the meaning of alternative logics, models of imagination and mental simulation, the theory of information, truth in fiction, the meaning of conditional statements, and reasoning about the impossible. In all these cases, impossible worlds have an essential role to play. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reflections on Raphael PAUL BAROLSKY The essence of all appreciation and analysis of art is the translation of visual perceptions into compelling verbal form. —Ralph Lieberman cultural unity Horace Walpole, Sir Joshua Reynolds, Johann Wolfgang Goethe, Eugène Delacroix, Honoré Balzac, Friedrich Hegel, Charles Baudelaire, Friedrich Nietzsche, Pierre Renoir, Nathaniel Hawthorne, August Wilhelm von Schlegel, Heinrich von Kleist, Franz Grillparzer, Fyodor Dostoyevsky, Ivan Turgenev, Wilhelm Heinrich Wackenroder, George Eliot, (...) Jean-Auguste Dominique Ingres, Roger Fry, Bernard Berenson, Theodor Hetzer, Roberto Longhi, Heinrich Wölfflin, and Stendhal are among the many essayists, critics, novelists, poets, painters and art historians who have responded to Raphael’s work as painter, architect or archeologist over the centuries. I can well imagine all of those listed above, among many others, united in an imaginary painting similar to the School of Athens—in other words, a vision that reconciles their various views of the world in a harmony analogous to the unity of philosophers in Raphael’s great fresco. Raphael is a towering figure in the history of European culture. The year 2020 was the 500th anniversary of the death of the great painter in Rome at the age of thirty-seven. In the wake of recent exhibitions that commemorated the artist’s achievement, I propose to touch briefly and lightly on a few aspects arion 28.2 fall 2020 100 reflections on raphael of Raphael’s life and works. Please think of these remarks as a series of suggestions, not attempts at definitive interpretation. I think of this essay as a rather experimental piece. THE SCHOOL OF ATHENS i should like to begin with a few brief remarks on what must be Raphael’s most famous work of art. I mean his School of Athens (fig. 1), which is, like Leonardo’s Mona Lisa and Last Supper or like Michelangelo’s David and Creation of Adam, an image widely known and admired. What more is there to say about The School Of Athens, one of the central images in the Stanza della Segnatura? You might spend the rest of your life reading about this great work and never understand it fully. Nevertheless, I want to focus for a moment on a central detail of the work and, on the basis of my description, point to a significant aspect of the fresco that has been universally overlooked. First the description, then the aperçu. Fig. 1. School of Athens. Ca. 1510–1512. Photo Credit : Erich Lessing / Art Resource, NY. Paul Barolsky 101 At the center of the School of Athens we behold the two great philosophers of classical antiquity: Plato and Aristotle. Plato holds a copy of his Timaeus, a dialogue that concerns the harmony of the heavens; Aristotle holds a copy of his Ethics, a work that pertains to human relations in this world. It was the goal of Renaissance thinkers to create a harmony or concord of the thought of these philosophers: a Concordia Platonis et Aristotelis. Raphael’s fresco, as is well known, presents the visual ideal of such harmony. Whereas Aristotle gestures downward, alluding to this world, in which his Ethics matter, Plato points heavenward, evoking the order of the cosmic realm described in Timaeus. Raphael makes visible the ideal of concordia when he movingly pictures the way in which the two philosophers gaze into each other’s eyes, as if to suggest this harmony. Borrowing from the language of Raphael ’s friend, Baldassare Castiglione, Raphael renders “the joining” of their souls. The monumental architecture of the scene, which echoes Bramante and has taproots in Piero della Francesca and Perugino, consists of three barrel-vaults beyond which we see patches of blue sky and puffs of cloud (fig. 2). The grandiose architecture of the image magnifies Raphael’s philosophers. Within this architectural framework, Plato’s gesture is deeply meaningful, since it prompts the viewer to look up and thus ascend toward the perfection of the celestial realm, beyond the imperfections of the physical world. Above the first barrel vault in the fresco we behold a section of the drum of a dome which is open to the sky. Within this section of drum there are two columns that are lined up directly... (shrink)

Brentanos 1904 vollendete Theorie, nur Reales sei vorstellbar und könne existieren, führte auch unter seinen Schülern zu Kontroversen. Dieser Band enthält eine umfangreiche Studie, die Einleitung der Herausgeber zu diesem Problemkreis, Auszüge aus dem Briefwechsel mit A. Marty und O. Kraus sowie die einschlägigen Abhandlungen Brentanos.

H. 46 und H 47: >Geschichte der Philosophie mit älteren, von Brentano ausgeschiedenen Blättern. ... Vorlesung über >Geschichte der mittelalterlichen Philosophie im christlichen Abendland< nicht mehr angekündigt worden. ' Die von F.

Fusing philosophy and theology, the book assigns both Judaism and Christianity distinct but equally important roles in the spiritual structure of the world and ...

If a group is modelled as a single Bayesian agent, what should its beliefs be? I propose an axiomatic model that connects group beliefs to beliefs of group members, who are themselves modelled as Bayesian agents, possibly with different priors and different information. Group beliefs are proven to take a simple multiplicative form if people’s information is independent, and a more complex form if information overlaps arbitrarily. This shows that group beliefs can incorporate all information spread over the individuals without (...) the individuals having to communicate their (possibly complex and hard-to-describe) private information; communicating prior and posterior beliefs sufices. JEL classification: D70, D71.. (shrink)

How can the propositional attitudes of several individuals be aggregated into overall collective propositional attitudes? Although there are large bodies of work on the aggregation of various special kinds of propositional attitudes, such as preferences, judgments, probabilities and utilities, the aggregation of propositional attitudes is seldom studied in full generality. In this paper, we seek to contribute to filling this gap in the literature. We sketch the ingredients of a general theory of propositional attitude aggregation and prove two new theorems. (...) Our first theorem simultaneously characterizes some prominent aggregation rules in the cases of probability, judgment and preference aggregation, including linear opinion pooling and Arrovian dictatorships. Our second theorem abstracts even further from the specific kinds of attitudes in question and describes the properties of a large class of aggregation rules applicable to a variety of belief-like attitudes. Our approach integrates some previously disconnected areas of investigation. (shrink)

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps, and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may (...) freely copy and distribute this work, as no entity has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

Dem durch Kant verschütteten Verständnis der aristotelischen Kategorienlehre brach schon Brentanos erste Schrift 'Von der mannigfachen Bedeutung des Seienden nach Aristoteles' Bahn. Zu ihrem Thema kehrt er in den hier vereinten Diktaten aus seinem letzten Jahrzehnt zurück.

While the importance of social norms for shaping and transforming communities is uncontested, their nature and normativity are controversial. Most recent theorists take social norms to arise if members hold certain attitudes, such as expectations on others, perhaps along with certain behaviours. Yet attitudes do not create norms, let alone social norms or social normativity. Social norms are instead ‘made’: through a social process. Social norming processes are special communication processes, often non-verbal and informal. We present different versions of a (...) process-based account of social norms and social normativity. The process-based view brings social norms closer to legal norms, as processes represent social ‘acts’, just as laws and contracts arise through acts rather than mere attitudes, for instances acts of voting or signing. (shrink)

Democratic decision-making is often defended on grounds of the ‘wisdom of crowds’: decisions are more likely to be correct if they are based on many independent opinions, so a typical argument in social epistemology. But what does it mean to have independent opinions? Opinions can be probabilistically dependent (threatening the ‘wisdom of crowds’) even if individuals form their opinion in causal isolation from each other. We distinguish four probabilistic notions of opinion independence. Which of them holds depends on how individuals (...) are causally affected by environmental factors such as commonly perceived evidence. In a general theorem, we identify causal conditions guaranteeing each kind of opinion independence. These results have implications for whether and how ‘wisdom of crowds’ arguments are possible, and how truth-conducive institutions can be designed. (shrink)

Emotions are a core factor of learning. Studies have shown that multiple emotions are co-experienced during learning and have a significant impact on learning outcomes. The present study investigated the importance of multiple, co-occurring emotions during learning about human biology with MetaTutor, a hypermedia-based intelligent tutoring system. Person-centered as well as variable-centered approaches of cluster analyses were used to identify emotion clusters. The person-centered clustering analyses indicated three emotion profiles: a positive, negative and neutral profile. Students with a negative profile (...) learned less than those with other profiles and also reported less usage of emotion regulation strategies. Emotion clusters identified through spectral co-clustering confirmed these results. Throughout the learning activity, emotions built a stable correlational structure of a positive, a negative, a neutral and a boredom emotion cluster. Positive emotion cluster scores before the learning activity and negative emotion cluster scores during the learning activity predicted learning, but not consistently. These results reveal the importance of negative emotions during learning with MetaTutor. Potential moderating factors and implications for the design and development of educational interventions that target emotions and emotion regulation with digital learning environments are discussed. (shrink)

In this brief note I show how to model conceptual change, logical learning, and revision of one's beliefs in response to conditional information such as indicative conditionals that do not express propositions.

The paper investigates the question as to which features of hypotheses make them explanatory. Given the intuitive appeal of causal explanations, one might suspect that explanatoriness is deeply connected with causation. I argue in detail that this is wrong by showing that none of the dominant analyses of causation are suited for general accounts of explanatoriness. In the second part, I provide the outlines of an account of explanatoriness that connects it with scientific understanding, which in turn is argued to (...) be analyzable as the cognitive realization of scientific models. (shrink)