Metaphysics and psychology are two of Brentano’s main areas of interest in philosophy. His first writings, the dissertation On the Several Senses of Being in Aristotle (1862) and the habilitation thesis, The Psychology of Aristotle (1867), bear witness to the duality of his concerns. As such, these works were not only significant contributions to the German Aristotelianism of the second half of the XIXth century, but they also played an important role in the development of Brentano’s later philosophy and in (...) defining his school of thought. At the same time, the dissertation, now celebrating the sesquicentennial of its first publication, was received beyond the immediate sphere of the Brentanian school, for its reading played a significant role in young Heidegger’s thought on being, and thus in his development of a new type of phenomenology, distinct from the Husserlian one. The studies comprising this volume examine the relevance of Brentano’s dissertation, of his metaphysics and psychology for contemporary philosophical research. Generally, the papers emphasize a tendency in Brentanian research, which has become more conspicuous in the last two decades, and can be described as a gradual shift in focus from the specific problems of Brentano’s late philosophy, towards his earlier philosophy, especially his first writings and manuscripts. Taking into account both Brentano’s published works, and the manuscripts of the dissertation and the Psychology, the contributions of this volume manage to emphasise unexplored aspects of Brentano’s philosophy and stand witness to the complexity and the historical dimension of a legacy whose richness still awaits full discovery. -/- Table of Contents -/- Ion Tănăsescu, Foreword Edoardo Fugali, Trendelenburg, Brentano und die Aristoteles-Renaissance in der deutschen Philosophie des 19. Jahrhunderts. Die Frage nach dem Ursprung der Kategorien Dale Jacquette, Brentano on Aristotle’s Categories: First Philosophy and the Manifold Senses of Being Klaus Hedwig, „... eine gewisse kongeniale Denkweise“. Brentanos Rückgriffe auf Thomas von Aquin in seiner Dissertation Susan Krantz Gabriel, Heidegger’s Question and the Fundamental Sense of Being in Brentano Ion Tănăsescu, Franz Brentano’s Dissertation and the Problem of Intentionality Josef Seifert, Über das notwendige Dasein Gottes. Eine kritische Antwort auf Franz Brentanos Kritik des ontologischen Gottesbeweises Paul Janssen, Die Gottesrede bei Brentano Robin Rollinger, Brentano's Psychology from an Empirical Standpoint: Its Background and Conception Guillaume Fréchette, Deux aspects de l’intentionnalité dans la Psychologie de Brentano Denis Seron, The Fechner-Brentano Controversy on the Measurement of Sensation Carlo Ierna, Brentano and Mathematics Roberto Poli, Modes and Boundaries Federico Boccaccini, La vérité efficace. L’épistémologie de Brentano entre Evidenzphilosophie et pragmatisme Thomas Binder, Der Nachlass Franz Brentanos. Eine historische Annäherung an einen schwierigen Fall. (shrink)

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)

Gabriel Vacariu (2020) Unbelievable similarities - selected authors (Sean Carroll, Frank Wilczek, Carlo Rovelli, Kastner, Kauffman et all, Lee Somlin, Markus Gabriel) from much bigger manuscript (Gabriel Vacariu, (June 2020 to 2014) The UNBELIEVABLE SIMILARITIES between the ideas of some people (2011-2016) and my ideas (2002-2008) in physics (quantum mechanics, cosmology), cognitive neuroscience, philosophy of mind, and philosophy (this manuscript would require a REVOLUTION in international academy environment!) here -/- (During last 4 years, I have sent this (...) updated manuscript to thousands of people from many countries in each year! They have no chances!!!) All my main ideas (the mind-brain problem, main problems of cognitive science and quantum mechanics, Einstein’s relativity vs. quantum mechanics, etc.) from my Springer’s book (2016) can be found in my PhD thesis (2007), UNSW (Sydney, Australia, officially posted on university’s website, FREE, by the university’s Staff in 2007) . (shrink)

This paper presents the Spanish translation of the only two texts of Franz Brentano which deal specifically with St. Thomas Aquinas. The first text is a section about St. Albert the Great and Aquinas in an article published during Brentano’s youth, “The History of Ecclesiastical Sciences” (1867). The second text is an article, “Thomas Aquinas” (1908), written at the end of his life. Both texts reveal the immense value that Brentano saw in Aquinas. They also show that he regarded (...) Aquinas mainly as an important interpreter of Aristotle rather than as a philosopher in his own right. Brentano’s approach here also gives us some insight into his own conception of philosophical hermeneutics. The differences between the two texts are evident; for instance, in the second one, there is a Brentano’s manipulation of Aquinas’ thought to justify his leaving the Catholic Faith. The texts are also preceded by a little introduction of mine. Original titles: «Geschichte der kirchlichen Wissenschaften», in: Johann Adam Möhler (ed.), 'Kirchengeschichte', Band 2 (Regensburg: Manz, 1867), pp. 550-556 and «Thomas von Aquin», 'Neue Freie Presse' 15683 (18/4/1908): 1-5. (shrink)

Me, Gabriel Vacariu, professor at Department of Theoretical Philosophy, Faculty of Philosophy, Bucharest University, Romania, I declare that I have had the worst promotion during my entire career at this department even if I have had the best CV during my career (since 1998). With this memorandum, I want to find the criteria for the promotion at my department and faculty (from Bucharest University). From what I know, my promotion depends on the will of the chief of the department (...) and of my colleagues. If my colleagues do not want my promotion, I will never be promoted! I emphasize that, in relationship with my colleagues, I have had the worst promotion even if I have had the best CV. (shrink)

All existing impossibility theorems on judgment aggregation require individual and collective judgment sets to be consistent and complete, arguably a demanding rationality requirement. They do not carry over to aggregation functions mapping profiles of consistent individual judgment sets to consistent collective ones. We prove that, whenever the agenda of propositions under consideration exhibits mild interconnections, any such aggregation function that is "neutral" between the acceptance and rejection of each proposition is dictatorial. We relate this theorem to the literature.

Gabriel Vacariu (November 2018) UNBELIEVABLE similarities between Ferraris’s ideas (2012) and my ideas (2002-2008).

Over the last two centuries, the relationship between philosophy and science has completely broken down, so the question we are confronted with is: How can we develop a new philosophy, which will influence science decisively? The physicists of the last century rejected their contemporary philosophy. They considered that “philosophy today is dead” (Hawking and Mlodinow 2010). However, we believe that the great scientific problems are always philosophical, and only philosophical problems. Therefore, these problems can be solved only by philosophers and (...) scientists who operate at the greatest level of thinking: that of the “paradigm of thinking”. In fact, these great scientific problems can usually be solved by changing the “paradigm of thinking” for scientists. This book furnished more applications of the “epistemologically different worlds” (that replaced the “world”/”universe” – in their previous books (2008, 2010, 2011, etc.), the authors indicated that the notion of the world/universe is wrong). Following Aristotle’s “Prime Mover” (or the “Unmoved Mover”), we stop the regress ad infinitum by discovering the first EW, the EW0 (the Hypernothing). Even if one EW does not exist for any EDW, the Hypernothing was the first EW and all other EDWs correspond to the EW0. Chapter 2 is about the “Hypernothing”. The other chapters continue our works of applying the EDWs to different concepts/areas of Physics: quantum mechanics, elementary particles, thermodynamics (with its main notion, “entropy”), etc. In the last chapter, knowing that Einstein’s special and general theory of relativity are very correct (but in a book 2016 we showed that “spacetime” cannot ontologically exist), we re-write both theories without “spacetime”. Content, Introduction and Chapter 1, FREE at https://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=gabriel+vacariu&rh=i%3Aaps%2Ck%3Agabriel+vacariu . (shrink)

It is well-known the UNBELIEVABLE similarities between markus gabriel’s ideas from his book 2013 and my ideas (2002, 2005, 2008, etc.) (see my article or my manuscript). Not amazing, markus gabriel (mg) publishes (2017) more UNBELIEVABLE similar ideas to my ideas (2002, 2005, 2008)! So, let me investigate mg’s ideas from his last book 2017: -/- Markus Gabriel (2017) I am not a brain. Philosophy of Mind for the Twenty-First Century, Polity Press -/- I draw the attention (...) that markus gabriel has never written an article on the Philosophy of Mind! However, we see now even in the title of his book that he talks about the Philosophy of mind for 21th Century! (shrink)

Since 2015, incredible many have published UNBELIEVABLE similar ideas to my ideas published between 2002-2008!!! There were others who published UNBELIEVABLE similar ideas to my ideas even earlier (since 2008, in general), but the number has an incredible jump after 2014. Why? In 2014, I have sent emails to thousands of people (many countries, many domains (Physics, Philosophy, and Cognitive Science)) regarding the UNBELIEVABLE similarities between my ideas (2002-2008) and Markus Gabriel’s ideas (his book from 2013). Is it this (...) a coincidence? I don’t believe so… Why so many people from so many countries from so many domains on so many topics have published UNBELIEVALBE similar ideas to my ideas (2002-2008 and later)? Because I have changed EVERYTHING! (shrink)

There has been much discussion on the two-envelope paradox. Clark and Shackel (2000) have proposed a solution to the paradox, which has been refuted by Meacham and Weisberg (2003). Surprisingly, however, the literature still contains no axiomatic justification for the claim that one should be indifferent between the two envelopes before opening one of them. According to Meacham and Weisberg, "decision theory does not rank swapping against sticking [before opening any envelope]" (p. 686). To fill this gap in the literature, (...) we present a simple axiomatic justification for indifference, avoiding any expectation reasoning, which is often considered problematic in infinite cases. Although the two-envelope paradox assumes an expectation-maximizing agent, we show that analogous paradoxes arise for agents using different decision principles such as maximin and maximax, and that our justification for indifference before opening applies here too. (shrink)

The paper provides an argument for the thesis that an agent’s degrees of disbelief should obey the ranking calculus. This Consistency Argument is based on the Consistency Theorem. The latter says that an agent’s belief set is and will always be consistent and deductively closed iff her degrees of entrenchment satisfy the ranking axioms and are updated according to the ranktheoretic update rules.

Mentionez ca, in raport cu colegii mei, la acest departament si facultate, eu am avut am avut cea mai slaba promovarea de-a lungul carierei mele, desi CVul meu a fost, inca de la inceput, cel mai bun raportat la cei din generatia mea sau apropiati de generatia mea. La ora actuala, raportat la criteriile INTERNATIONALE, CVul meu este cel mai bun de la aceasta facultate.

When I read this paragraph about her book: -/- In Form, Matter, Substance, Kathrin Koslicki develops a contemporary defence of the Aristotelian doctrine of hylomorphism. According to this approach, objects are compounds of matter (hule) and form (morphe or eidos) and a living organism is not exhausted by the body, cells, organs, tissue, and the like that compose it. Koslicki argues that a hylomorphic analysis of concrete particular objects is well equipped to compete with alternative approaches when measured against a (...) wide range of criteria of success. However, a plausible application of the doctrine of hylomorphism to the special case of concrete particular objects hinges on how hylomorphists conceive of the matter composing a concrete particular object, its form, and the hylomorphic relations which hold between a matter-form compound, its matter and its form. Koslicki offers detailed answers to the questions surrounding this approach to the metaphysics of concrete particular objects. As a result, matter-form compounds emerge as occupying the privileged ontological status traditionally associated with substances, despite their metaphysical complexity, due to their high degree of unity. (shrink)

The aggregation of individual judgments over interrelated propositions is a newly arising field of social choice theory. I introduce several independence conditions on judgment aggregation rules, each of which protects against a specific type of manipulation by agenda setters or voters. I derive impossibility theorems whereby these independence conditions are incompatible with certain minimal requirements. Unlike earlier impossibility results, the main result here holds for any (non-trivial) agenda. However, independence conditions arguably undermine the logical structure of judgment aggregation. I therefore (...) suggest restricting independence to premises, which leads to a generalised premise-based procedure. This procedure is proven to be possible if the premises are logically independent. (shrink)

Cursul va contine patru parti pe urmatoarele filme si lucrarile: I. Andrei Tarkovski: “Solaris”, “Calauza”, “Nostalghia”, “Sacrificiul” - Friedrich Nietzsche si “eterna reintoarcere” - Mircea Eliade si “eterna reintoarcere” II. Wong Kar-wai: “In the mood for love”, “2046” III. Cristi Puiu: “Sieranevada” IV. Constantin Brancusi: Ansamblul de la Targu Jiu + sculpturile principale (Pasarea in zbor, Mlle Pogany, etc.).

When one thinks—knows, believes, imagines—that something is the case, one’s thought has a topic: it is about something, towards which one’s mind is directed. What is the logic of thought, so understood? This book begins to explore the idea that, to answer the question, we should take topics seriously. It proposes a hyperintensional account of the propositional contents of thought, arguing that these are individuated not only by the set of possible worlds at which they are true, but also by (...) their topic: what they are about. The book then builds epistemic, doxastic, probabilistic, and conditional logics based on this view. It applies them to issues ranging from dogmatism, scepticism, and epistemic fallibilism, to imagination and suppositional reasoning, belief revision, framing effects, and the acceptability of indicative conditionals. (shrink)

We present an abstract model of rationality that focuses on structural properties of attitudes. Rationality requires coherence between your attitudes, such as your beliefs, values, and intentions. We define three 'logical' conditions on attitudes: consistency, completeness, and closedness. They parallel the familiar logical conditions on beliefs, but contrast with standard rationality conditions like preference transitivity. We establish a formal correspondence between our logical conditions and standard rationality conditions. Addressing John Broome's programme 'rationality through reasoning', we formally characterize how you can (...) (not) become more logical by reasoning. Our analysis connects rationality with logic, and enables logical talk about multi-attitude psychology. (shrink)

This paper starts by indicating the analysis of Hempel's conditions of adequacy for any relation of confirmation (Hempel, 1945) as presented in Huber (submitted). There I argue contra Carnap (1962, Section 87) that Hempel felt the need for two concepts of confirmation: one aiming at plausible theories and another aiming at informative theories. However, he also realized that these two concepts are conflicting, and he gave up the concept of confirmation aiming at informative theories. The main part of the paper (...) consists in working out the claim that one can have Hempel's cake and eat it too - in the sense that there is a logic of theory assessment that takes into account both of the two conflicting aspects of plausibility and informativeness. According to the semantics of this logic, a is an acceptable theory for evidence β if and only if a is both sufficiently plausible given β and sufficiently informative about β. This is spelt out in terms of ranking functions (Spohn, 1988) and shown to represent the syntactically specified notion of an assessment relation. The paper then compares these acceptability relations to explanatory and confirmatory consequence relations (Flach, 2000) as well as to nonmonotonic consequence relations (Kraus et al., 1990). It concludes by relating the plausibility-informativeness approach to Carnap's positive relevance account, thereby shedding new light on Carnap's analysis as well as solving another problem of confirmation theory. (shrink)

Many people published UNBELIEVABLE similar ideas to my ideas, long time after I published my ideas at Synthese (USA, 2005) and Springer (2015) and posted FREE on different webpages!!!!

Many people (many countries, many domains, many topics) have published UNBELIEVABLE similar ideas to my ideas (published long time ago).

In this article, I investigate the UNBELIEVABLE similar ideas of Brukner’s article (2015) and my ideas (2002-2008) In this article, I investigate the UNBELIEVABLE similar ideas of Brukner’s article (2015) and my ideas (2002-2008) I emphasize that this paragraph is not from my works!! Instead of “objectivity of the ‘facts of the world’, I used EDWs! All the ideas from this paragraph (and the philosophical ideas referring to QM from this article, can be found in my works 2002-2008!

I propose a relevance-based independence axiom on how to aggregate individual yes/no judgments on given propositions into collective judgments: the collective judgment on a proposition depends only on people’s judgments on propositions which are relevant to that proposition. This axiom contrasts with the classical independence axiom: the collective judgment on a proposition depends only on people’s judgments on the same proposition. I generalize the premise-based rule and the sequential-priority rule to an arbitrary priority order of the propositions, instead of a (...) dichotomous premise/conclusion order resp. a linear priority order. I prove four impossibility theorems on relevance-based aggregation. One theorem simultaneously generalizes Arrow’s Theorem (in its general and indifference-free versions) and the well-known Arrow-like theorem in judgment aggregation. (shrink)

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)

I present a formal theory of the logic and aboutness of imagination. Aboutness is understood as the relation between meaningful items and what they concern, as per Yablo and Fine’s works on the notion. Imagination is understood as per Chalmers’ positive conceivability: the intentional state of a subject who conceives that p by imagining a situation—a configuration of objects and properties—verifying p. So far aboutness theory has been developed mainly for linguistic representation, but it is natural to extend it to (...) intentional states. The proposed framework combines a modal semantics with a mereology of contents: imagination operators are understood as variably strict quantifiers over worlds with a content-preservation constraint. (shrink)

A group is often construed as one agent with its own probabilistic beliefs (credences), which are obtained by aggregating those of the individuals, for instance through averaging. In their celebrated “Groupthink”, Russell et al. (2015) require group credences to undergo Bayesian revision whenever new information is learnt, i.e., whenever individual credences undergo Bayesian revision based on this information. To obtain a fully Bayesian group, one should often extend this requirement to non-public or even private information (learnt by not all or (...) just one individual), or to non-representable information (not representable by any event in the domain where credences are held). I pro- pose a taxonomy of six types of ‘group Bayesianism’. They differ in the information for which Bayesian revision of group credences is required: public representable information, private representable information, public non-representable information, etc. Six corre- sponding theorems establish how individual credences must (not) be aggregated to ensure group Bayesianism of any type, respectively. Aggregating through standard averaging is never permitted; instead, different forms of geometric averaging must be used. One theorem—that for public representable information—is essentially Russell et al.’s central result (with minor corrections). Another theorem—that for public non-representable information—fills a gap in the theory of externally Bayesian opinion pooling. (shrink)

Timothy Williamson has defended the claim that the semantics of the indicative ‘if’ is given by the material conditional. Putative counterexamples can be handled by better understanding the role played in our assessment of indicatives by a fallible cognitive heuristic, called the Suppositional Procedure. Williamson’s Suppositional Conjecture has it that the Suppositional Procedure is humans’ primary way of prospectively assessing conditionals. This paper raises some doubts on the Suppositional Procedure and Conjecture.

A friend of my sent me the address where this paper has been posted by Adam Frank. Reading it, I realized that more than 90% of the main ideas of this paper (about the mind-brain problem, quantum mechanics (microparticles-wave relationship, Schrodinger equation, probabilities, “perceiving subject in physics”, the idea about consciousness and Nagel, etc. etc.) are UNBELIEVABLE similar to my ideas from my paper 2005 or my book 2008!!!

We propose a new account of indicative conditionals, giving acceptability and logical closure conditions for them. We start from Adams’ Thesis: the claim that the acceptability of a simple indicative equals the corresponding conditional probability. The Thesis is widely endorsed, but arguably false and refuted by empirical research. To fix it, we submit, we need a relevance constraint: we accept a simple conditional 'If φ, then ψ' to the extent that (i) the conditional probability p(ψ|φ) is high, provided that (ii) (...) φ is relevant for ψ. How (i) should work is well-understood. It is (ii) that holds the key to improve our understanding of conditionals. Our account has (i) a probabilistic component, using Popper functions; (ii) a relevance component, given via an algebraic structure of topics or subject matters. We present a probabilistic logic for simple indicatives, and argue that its (in)validities are both theoretically desirable and in line with empirical results on how people reason with conditionals. (shrink)

Some have defended a Fregean view of perceptual content. On this view, the constituents of perceptual contents are Fregean modes of presentation (MOPs). In this paper, I propose that perceptual MOPs are best understood in terms of object files. Object files are episodic representations that store perceptual information about objects. This information is updated when sensory conditions change. On the proposed view, when a subject perceptually represents some object a under two distinct MOPs, then the subject initiates two object files (...) that both refer to a. My defense of this view appeals to its satisfaction of four constraints that I argue theories of perceptual MOPs should satisfy. Furthermore, I show that some existent accounts of perceptual MOPs fail to satisfy them. The defended constraints also indicate what is unique about perceptual, as opposed to linguistic or cognitive, MOPs. (shrink)

Confucian scholars should satisfy two conditions insofar as they think their theories enable Confucianism to make contributions to liberal politics and social policy. The liberal accommodation condition stipulates that the theory in question should accommodate as many reasonable conceptions of the good and religious doctrines as possible while the intelligibility condition stipulates that the theory must have a recognizable Confucian character. By and large, Joseph Chan’s Confucian perfectionism is able to satisfy the above two conditions. However, contrary to Chan and (...) many other Confucian scholars, I argue that any active promotion of Confucianism will violate the liberal accommodation condition. I propose the “wide view of moderate perfectionism,” which enables Confucianism to shed light on a wide range of political and social issues without promoting Confucianism actively. Thus, I present a new approach to the long-standing question of how Confucianism may improve political and social development in a liberal society. (shrink)

In response to recent work on the aggregation of individual judgments on logically connected propositions into collective judgments, it is often asked whether judgment aggregation is a special case of Arrowian preference aggregation. We argue for the converse claim. After proving two impossibility theorems on judgment aggregation (using "systematicity" and "independence" conditions, respectively), we construct an embedding of preference aggregation into judgment aggregation and prove Arrow’s theorem (stated for strict preferences) as a corollary of our second result. Although we thereby (...) provide a new proof of Arrow’s theorem, our main aim is to identify the analogue of Arrow’s theorem in judgment aggregation, to clarify the relation between judgment and preference aggregation, and to illustrate the generality of the judgment aggregation model. JEL Classi…cation: D70, D71.. (shrink)

Many ideas from Georg Nortoff’s works (published one paper in 2010, mainly his book in 2011, other papers in 2012, 2103, 2014, especially those related to Kant’s philosophy and the notion of the “observer”, the mind-brain problem, default mode network, the self, the mental states and their “correspondence” to the brain) are surprisingly very similar to my ideas published in my article from 2002, 2005 and my book from 2008. In two papers from 2002 (also my paper from 2005 and (...) my book 2008), following Kant’s philosophy, I introduced the notion of the “observer” for the mind-brain problem. After 2010 (mainly his book 2011 and other papers after this book), Nortoff also uses Kant’s philosophy (even if his knowledge about Kant’s philosophy is very superficial!) and the notion of the “observer” for the mind-brain problem in a methodology very similar to my methodology. Moreover, instead of EDWs, Nortoff uses a kind of “transdisciplinary” view, quite close to parallelism – the closest approach to my EDWs! In his works until 2014, Northoff’s conclusion within the unicorn world was different than my conclusion. However, in his book 2014 (two volumes) using notions like “correlations” and even “correspondences” many times, his conclusion is very closed to my EDWs! This dramatic change of framework in 3 years is quite unbelievable!!! Incredible many ideas from this book are very similar to my ideas from 2005 and 2008! (shrink)

On January 2023, I received an email from somebody regarding Velmans’s article 2008. After I took a look at the paper, I started to read his book 2000. Therefore, in this section, I will investigate Velmans’ works from 2000 and 2008. I emphasize that the main difference between Spinoza’s (Velmans) dual aspect theory and my EDWs approach is the framework of thinking: Spinoza, Velmans and everybody until me had been working within the unicorn world (the Universe/world), while my EDWs assumes (...) the rejection of the the universe/world; I replace this eternal and wrong notion with the EDWs. (see my previous works; my first five books and a book from 2022 and many of my articles are FREE on internet at my webpage and other pages). (shrink)

In Public Reason Confucianism, Sungmoon Kim presents an important Confucian political theory that seeks to combine a specific conception of Confucianism and the ideal of public reason. My article examines this theory and identifies some of the theoretical complications with Rawlsian public reason.

The new field of judgment aggregation aims to merge many individual sets of judgments on logically interconnected propositions into a single collective set of judgments on these propositions. Judgment aggregation has commonly been studied using classical propositional logic, with a limited expressive power and a problematic representation of conditional statements ("if P then Q") as material conditionals. In this methodological paper, I present a simple unified model of judgment aggregation in general logics. I show how many realistic decision problems can (...) be represented in it. This includes decision problems expressed in languages of classical propositional logic, predicate logic (e.g. preference aggregation problems), modal or conditional logics, and some multi-valued or fuzzy logics. I provide a list of simple tools for working with general logics, and I prove impossibility results that generalise earlier theorems. (shrink)

What is it for a picture to depict a scene? The most orthodox philosophical theory of pictorial representation holds that depiction is grounded in resemblance. A picture represents a scene in virtue of being similar to that scene in certain ways. This essay presents evidence against this claim: curvilinear perspective is one common style of depiction in which successful pictorial representation depends as much on a picture's systematic differences with the scene depicted as on the similarities; it cannot be analyzed (...) in terms of similarity alone. The same problem arises for many other kinds of depiction. The essay concludes that depiction in general is not grounded in resemblance but geometrical transformation. (shrink)

Tractatus 4.024 inspired the dominant semantics of our time: truth-conditional semantics. Such semantics is focused on possible worlds: the content of p is the set of worlds where p is true. It has become increasingly clear that such an account is, at best, defective: we need an ‘independent factor in meaning, constrained but not determined by truth-conditions’ (Yablo 2014, p. 2), because sentences can be differently true at the same possible worlds. I suggest a missing comment which, had it been (...) included in the Tractatus, would have helped semantics get this right from the start. This is my 4.0241: ‘Knowing what is the case if a sentence is true is knowing its ways of being true’: knowing a sentence’s truth possibilities and what we now call its topic, or subject matter. I show that the famous ‘fundamental thought’ that ‘the “logical constants” do not represent’ (4.0312) can be understood in terms of ways-based views of meaning. Such views also help with puzzling claims like 5.122: ‘If p follows from q, the sense of “p” is contained in the that of “q”’, which are compatible with a conception of entailment combining truth-preservation with the preservation of topicality, or of ways of being true. (shrink)

We present a new “reason-based” approach to the formal representation of moral theories, drawing on recent decision-theoretic work. We show that any moral theory within a very large class can be represented in terms of two parameters: a specification of which properties of the objects of moral choice matter in any given context, and a specification of how these properties matter. Reason-based representations provide a very general taxonomy of moral theories, as differences among theories can be attributed to differences in (...) their two key parameters. We can thus formalize several distinctions, such as between consequentialist and non-consequentialist theories, between universalist and relativist theories, between agent-neutral and agent-relative theories, between monistic and pluralistic theories, between atomistic and holistic theories, and between theories with a teleological structure and those without. Reason-based representations also shed light on an important but under-appreciated phenomenon: the “underdetermination of moral theory by deontic content”. (shrink)

Which rules for aggregating judgments on logically connected propositions are manipulable and which not? In this paper, we introduce a preference-free concept of non-manipulability and contrast it with a preference-theoretic concept of strategy-proofness. We characterize all non-manipulable and all strategy-proof judgment aggregation rules and prove an impossibility theorem similar to the Gibbard--Satterthwaite theorem. We also discuss weaker forms of non-manipulability and strategy-proofness. Comparing two frequently discussed aggregation rules, we show that “conclusion-based voting” is less vulnerable to manipulation than “premise-based voting”, (...) which is strategy-proof only for “reason-oriented” individuals. Surprisingly, for “outcome-oriented” individuals, the two rules are strategically equivalent, generating identical judgments in equilibrium. Our results introduce game-theoretic considerations into judgment aggregation and have implications for debates on deliberative democracy. (shrink)

This article shows that a slight variation of the argument in Milne 1996 yields the log‐likelihood ratio l rather than the log‐ratio measure r as “the one true measure of confirmation. ” *Received December 2006; revised December 2007. †To contact the author, please write to: Formal Epistemology Research Group, Zukunftskolleg and Department of Philosophy, University of Konstanz, P.O. Box X906, 78457 Konstanz, Germany; e‐mail: franz.huber@uni‐konstanz.de.

This paper shows that causation in the sense of Lewis is a special case of causation in the sense of Spohn.

While ordinary decision theory focuses on empirical uncertainty, real decision-makers also face normative uncertainty: uncertainty about value itself. From a purely formal perspective, normative uncertainty is comparable to (Harsanyian or Rawlsian) identity uncertainty in the 'original position', where one's future values are unknown. A comprehensive decision theory must address twofold uncertainty -- normative and empirical. We present a simple model of twofold uncertainty, and show that the most popular decision principle -- maximising expected value (`Expectationalism') -- has different formulations, namely (...) Ex-Ante Expectationalism, Ex-Post Expectationalism, and hybrid theories. These alternative theories recommend different decisions, reasoning modes, and attitudes to risk. But they converge under an interesting (necessary and sufficient) condition. (shrink)

Philosophers typically rely on intuitions when providing a semantics for counterfactual conditionals. However, intuitions regarding counterfactual conditionals are notoriously shaky. The aim of this paper is to provide a principled account of the semantics of counterfactual conditionals. This principled account is provided by what I dub the Royal Rule, a deterministic analogue of the Principal Principle relating chance and credence. The Royal Rule says that an ideal doxastic agent’s initial grade of disbelief in a proposition \(A\) , given that the (...) counterfactual distance in a given context to the closest \(A\) -worlds equals \(n\) , and no further information that is not admissible in this context, should equal \(n\) . Under the two assumptions that the presuppositions of a given context are admissible in this context, and that the theory of deterministic alethic or metaphysical modality is admissible in any context, it follows that the counterfactual distance distribution in a given context has the structure of a ranking function. The basic conditional logic V is shown to be sound and complete with respect to the resulting rank-theoretic semantics of counterfactuals. (shrink)

Degrees of belief are familiar to all of us. Our confidence in the truth of some propositions is higher than our confidence in the truth of other propositions. We are pretty confident that our computers will boot when we push their power button, but we are much more confident that the sun will rise tomorrow. Degrees of belief formally represent the strength with which we believe the truth of various propositions. The higher an agent’s degree of belief for a particular (...) proposition, the higher her confidence in the truth of that proposition. For instance, Sophia’s degree of belief that it will be sunny in Vienna tomorrow might be .52, whereas her degree of belief that the train will leave on time might be .23. The precise meaning of these statements depends, of course, on the underlying theory of degrees of belief. These theories offer a formal tool to measure degrees of belief, to investigate the relations between various degrees of belief in different propositions, and to normatively evaluate degrees of belief. (shrink)

Behaviourism is the view that preferences, beliefs, and other mental states in social-scientific theories are nothing but constructs re-describing people's behaviour. Mentalism is the view that they capture real phenomena, on a par with the unobservables in science, such as electrons and electromagnetic fields. While behaviourism has gone out of fashion in psychology, it remains influential in economics, especially in ‘revealed preference’ theory. We defend mentalism in economics, construed as a positive science, and show that it fits best scientific practice. (...) We distinguish mentalism from, and reject, the radical neuroeconomic view that behaviour should be explained in terms of brain processes, as distinct from mental states. (shrink)

Under the independence and competence assumptions of Condorcet’s classical jury model, the probability of a correct majority decision converges to certainty as the jury size increases, a seemingly unrealistic result. Using Bayesian networks, we argue that the model’s independence assumption requires that the state of the world (guilty or not guilty) is the latest common cause of all jurors’ votes. But often – arguably in all courtroom cases and in many expert panels – the latest such common cause is a (...) shared ‘body of evidence’ observed by the jurors. In the corresponding Bayesian network, the votes are direct descendants not of the state of the world, but of the body of evidence, which in turn is a direct descendant of the state of the world. We develop a model of jury decisions based on this Bayesian network. Our model permits the possibility of misleading evidence, even for a maximally competent observer, which cannot easily be accommodated in the classical model. We prove that (i) the probability of a correct majority verdict converges to the probability that the body of evidence is not misleading, a value typically below 1; (ii) depending on the required threshold of ‘no reasonable doubt’, it may be impossible, even in an arbitrarily large jury, to establish guilt of a defendant ‘beyond any reasonable doubt’. (shrink)

Introduction and translation of “The Four Phases of Philosophy” by Franz Brentano.