"The Personal is Political": This was an often-heard slogan of feminist groups in the late sixties and early seventies. The slogan is no doubt open to many interpretations. There is one interpretation which touches on the epistemology of social facts, viz. the slogan claims that in assessing the features of a political system, personal experiences have privileged evidentiary value. For instancte, in the face of third person reports about political corruption, I may remain unmoved in my belief that the political (...) powers are morally upstanding, and it is only when I myself am adversely affected, that I come to change my views. There are two standard patterns of explanation of this type of belief formation: (i) We know that third-person reports may be lessreliable than first-person experiences; (ii) If the third-person reports are no less reliable than first-person experiences, we may just be dealing with a standard pattern of epistemic irrationality. However, we argue that there is also a much more surprising pattern of explanation: under certain conditions, a Bayesian argument can be proffered to the effect that it is rational to change one's beliefs in the face of personal experiences and not in the face of third-person reports, even if these experiences and reports are equally reliable. Hence, the feminist slogan (at least on one particular interpretation of it) receives unexpected support from Bayesian comers. We also show that this pattern of explanation has surprising repercussions on the question of the evidentiary value of miracles in philosophy of religion. (shrink)

In their recently published book Nudge (2008) Richard H. Thaler and Cass R. Sunstein (T&S) defend a position labelled as ‘libertarian paternalism’. Their thinking appeals to both the right and the left of the political spectrum, as evidenced by the bedfellows they keep on either side of the Atlantic. In the US, they have advised Barack Obama, while, in the UK, they were welcomed with open arms by the David Cameron's camp (Chakrabortty 2008). I will consider the following questions. What (...) is Nudge? How is it different from social advertisement? Does Nudge induce genuine preference change? Does Nudge build moral character? Is there a moral difference between the use of Nudge as opposed to subliminal images to reach policy objectives? And what are the moral constraints on Nudge? (shrink)

The Distribution View provides a model that integrates four distributional concerns in the evaluation of risky prospects. Starting from these concerns, we can generate an ordering over a set of risky prospects, or, starting from an ordering, we can extract a characterization of the underlying distributional concerns. Separability of States and/or Persons for multiple-person risky prospects, for single-person risky prospects and for multiple-person certain prospects are discussed within the model. The Distribution View sheds light on public health policies and provides (...) a framework for the discussion of Parfit's Priority View for risky prospects. (shrink)

Belgium has recently extended its euthanasia legislation to minors, making it the first legislation in the world that does not specify any age limit. I consider two strands in the opposition to this legislation. First, I identify five arguments in the public debate to the effect that euthanasia for minors is somehow worse than euthanasia for adults—viz. arguments from weightiness, capability of discernment, pressure, sensitivity and sufficient palliative care—and show that these arguments are wanting. Second, there is another position in (...) the public debate that wishes to keep the current age restriction on the books and have ethics boards exercise discretion in euthanasia decisions for minors. I interpret this position on the background of Velleman’s “Against the Right to Die” and show that, although costs remain substantial, it actually can provide some qualified support against extending euthanasia legislation to minors. (shrink)

Choice often proceeds in two stages: We construct a shortlist on the basis of limited and uncertain information about the options and then reduce this uncertainty by examining the shortlist in greater detail. The goal is to do well when making a final choice from the option set. I argue that we cannot realise this goal by constructing a ranking over the options at shortlisting stage which determines of each option whether it is more or less worthy of being included (...) in a shortlist. This is relevant to the 2010 UK Equality Act. The Act requires that shortlists be constructed on grounds of candidate rankings and affirmative action is only permissible for equally qualified candidates. This is misguided: Shortlisting candidates with lower expected qualifications but higher variance may raise the chance of finding an exceptionally strong candidate. If it does, then shortlisting such candidates would make eminent business sense and there is nothing unfair about it. This observation opens up room for including more underrepresented candidates with protected characteristics, as they are more likely to display greater variance in the selector’s credence functions at shortlisting stage. (shrink)

Considerations of objective-value freedom and status freedom do impose constraints on policies that restrict access to cigarettes. As to the objective-value freedom, something of value is lost when anti-alcohol policies lead to pub closures interfering with valued life styles, and a similar, though weaker, argument can be made for cigarettes. As to status freedom, non-arbitrariness requires consultation with vulnerable populations to learn what might aid them with smoking cessation.

Risky prospects represent policies that impose different types of risks on multiple people. I present an example from food safety. A utilitarian following Harsanyi's Aggregation Theorem ranks such prospects according to their mean expected utility or the expectation of the social utility. Such a ranking is not sensitive to any of four types of distributional concerns. I develop a model that lets the policy analyst rank prospects relative to the distributional concerns that she considers fitting in the context at hand. (...) I name this model ‘the Distribution View’ posing an alternative to Parfit's Priority View for risky prospects. (shrink)

I argue in this paper that there are two considerations which govern the dynamics of a two-person bargaining game, viz. relative proportionate utility loss from conceding to one's opponent's proposal and relative non-proportionate utility loss from not conceding to one's opponent's proposal, if she were not to concede as well. The first consideration can adequately be captured by the information contained in vNM utilities. The second requires measures of utility which allow for an interpersonal comparison of utility differences. These considerations (...) respectively provide for a justification of the Nash solution and the Kalai egalitarian solution. However, none of these solutions taken by themselves can provide for a full story of bargaining, since, if within a context of bargaining one such consideration is overriding, the solution which does not match this consideration will yield unreasonable results. I systematically present arguments to the effect that each justification from self-interest for respectively the Nash and the Kalai egalitarian solution is vulnerable to this kind of objection. I suggest that the search for an integrative model may be a promising line of research. (shrink)

I investigate whether any plausible moral arguments can be made for ‘grandfathering’ emission rights (that is, for setting emission targets for developed countries in line with their present or past emission levels) on the basis of a Lockean theory of property rights.

In this commentary on Yashar Saghai's article "Salvaging the Concept of Nudge" (JME 2013) I discuss his distinction between a 'prod' (which is 'substantially controlling') and a 'nudge' (which is ‘substantially non-controlling’).

Utilitarianism, it has been said, is not sensitive to the distribution of welfare. In making risky decisions for others there are multiple sensitivities at work. I present examples of risky decision-making involving drug allocations, charitable giving, breast-cancer screening and C-sections. In each of these examples there is a different sensitivity at work that pulls away from the utilitarian prescription. Instances of saving fewer people at a greater risk to many is more complex because there are two distributional sensitivities at work (...) that pull in opposite directions from the utilitarian calculus. I discuss objections to these sensitivities and conclude with some reflections on the value of formal modelling in thinking about societal risk. (shrink)

I argue that by constructing an identity of Bohemian whim and spontaneity one can make what was previously an akratic action into a fully rational action, since in performing the action, one asserts one identity.

We construct a probabilistic coherence measure for information sets which determines a partial coherence ordering. This measure is applied in constructing a criterion for expanding our beliefs in the face of new information. A number of idealizations are being made which can be relaxed by an appeal to Bayesian Networks.

The mean majority deficit in a two-tier voting system is a function of the partition of the population. We derive a new square-root rule: For odd-numbered population sizes and equipopulous units the mean majority deficit is maximal when the member size of the units in the partition is close to the square root of the population size. Furthermore, within the partitions into roughly equipopulous units, partitions with small even numbers of units or small even-sized units yield high mean majority deficits. (...) We discuss the implications for the winner-takes-all system in the US Electoral College. (shrink)

There are three slogans in the history of Socialism that are very close in wording, viz. the famous Cabet-Blanc-Marx slogan: "From each according to his ability; To each according to his needs"; the earlier Saint-Simon-Pecqueur slogan: "To each according to his ability; To each according to his works"; and the later slogan in Stalin’s Soviet Constitution: "From each according to his ability; To each according to his work." We will consider the following questions regarding these slogans: a) What are the (...) earliest occurrences of each of these slogans? b) Where does the inspiration for each half of each slogan come from? c) What do the Saint-Simonians mean by “To each according to his ability”? d) What do they mean by “To each according to his works”? e) What motivates the shift from “To each according to his ability” to “From each according to his ability”? f) How should we envisage the progression toward “To each according to his needs”? g) What is the distinction between from “To each according to his works” and “To each according to his work”? (shrink)

The novelty in Adam Burgess’ paper is that he assesses nudge policies in the context of the shift in the UK government’s approach to risk from the nannying policies of Labour to the nudge policies of the Conservatives. There is a wealth of ideas in this paper. I find it useful to disentangle some of these ideas focusing on the following two questions: 1. In what respects do Labour’s nannying policies and the Conservatives’ nudge policies differ? 2. What is problematic (...) about Labour’s nannying and the Conservatives’ nudge policies? Subsequently I will reflect on how a particular strand of research in the social sciences can be made relevant to designing a more responsible way of dealing with societal risk and show how this approach can evade some of Burgess’ concerns. (shrink)

In the novel "Het Been" by the Flemish writer Willem Elsschot. In the novel, a businessman becomes obsessive over the fact that a victim of his unscrupulous business practices refuses to forgive him. This raises the following questions: Why does one find it upsetting when the victim of one's wrongdoing refuses to accept our apologies? Why does one find it upsetting when the victim is unwilling to grant us the forgiveness that we are asking for?

Socrates’ eros model, St. Paul’s agape model, and Aristophanes’ shared-identity model have different takes on the constancy of love and on the loss of love. I illustrate how these models and themes find expression within literature, music, and film through the ages.

Some of the challenges in Sanders et al. (this issue) can be aptly illustrated by means of charity nudges, that is, nudges designed to increase charitable donations. These nudges raise many ethical questions. First, Oxfam’s triptychs with suggested donations are designed to increase giving. If successful, do our actions match ex ante or ex post preferences? Does this make a difference to the autonomy of the donor? Second, the Behavioural Insights Team conducted experiments using social networks to nudge people to (...) give more. Do these appeals steer clear of exploiting power relations? Do they respect boundaries of privacy? Third, in an online campaign by Kiva, donors are asked to contribute directly to personalized initiatives. In many cases, the initiative has already been funded and donor money is funnelled to a new cause. Is such a “pre-disbursal” arrangement truthful and true to purpose as a social business model? (shrink)

In decision-theory, the notion of regret enters into the minimax decision-rule and has a determinate usage in this context. However, there are many alternative ways of conceiving of regret. The chapter constructs the einmalist- nicht-keinmal ('once is not never') game, in which a single sampling radically changes the expected value of the game in a way that is quite counterintuitive, as the basis for studying regret after a loss following the choice of an uncertain action. Crucially, the very loss affects (...) the posterior expectation of the game and the posterior credence about the objective chances of a win. Our taxonomy of regret contains regret over the action chosen and regret over the outcome obtained as its main categories, and is mirrored by a taxonomy of joy after a win following the choice of an uncertain action, and is used to critique of Krähmer and Stone's analysis of risk aversion for uncertain actions. (shrink)

Many religions offer hope for a life that transcends death and believers find great comfort in this. Non-believers typically do not have such hopes. In the face of death, they may find consolation in feeling contented with the life they have lived. But do they have hopes? I will identify a range of distinctly secular hopes at the end of life. Nothing stops religious people from sharing these secular hopes, in addition to their hope for eternal life. I will distinguish (...) between hopes about one’s life, hopes about one’s death, hopes about attitudes of others, and hopes about the future. But before turning to these hopes, I will reflect on the following question: What is it that would keep a person from hoping for eternal life? (shrink)

I illustrate the use of decision-theory and game-theory in the social sciences by means of examples from Gauthier, Tversky and Kahneman, and Bouldon.

At the heart of Drazen Prelec’s chapter is the distinction between outcome utility and diagnostic utility. There is a particular distinction in the literature on causal networks (Pearl 2000), namely the distinction between observing and intervening, that maps onto Prelec’s distinction between diagnostic and outcome utility. I will explore the connection between both frameworks.

I argue that the post-1990 practice of giving leadership positions in companies to non-ex-communists is an example of affirmative action.

I examine the relationship between belief and credences and distinguish between a dogmatic, a Lockean, an agentic, and an abductive notion of belief. I conclude with some thoughts on voluntarism and evidentialism.

I argue that we can generate intransitive preference orderings for a single person on the model of Sen's Libertarian Paradox.

It is important in its own right to determine what conception of mutual disinterest Rawls has in mind at the various junctions in the text. Furthermore, disambiguating this notion counters a common objection that there is no reason to accept principles of justice that are chosen by rational egoists. The persons in Rawls' OP are not rational egoists. Rather, in identifying with the token persons in society they make the actual interests of the token persons into their ends and they (...) know that they are choosing principles of justice for a society in which moderate selfishness reigns. But this is very remote from stipulating a selfish disposition for the persons in the OP. Hence, the objection is contingent on a natural misreading of Rawls' notion of mutual disinterest and can be readily dispelled by disambiguating this notion into a motivational and an epistemic constraint on the OP. (shrink)

We discuss theoretical topics in personality theory and in the methodology of personality measurement, and present personality tests that were developed in the Center for Recruitment and Selection in the Belgian Army.

Kant's aim in the transcendental deduction is to show that the categories, i.e., a specific set of categories, are a necessary condition for all possible experience. Some philosophers have extended this idea in the following way: Kant solely identified a set of a priori concepts, which are a necessary condition for all possible epistemic claims within a framework of Newtonian physics; however, there exist other sets of epistemic claims, which can solely be justified by means of alternative sets of a (...) priori concepts. In this paper I will address the following questions: (1) What claims are precisely involved in this alleged extension of Kant's results of the transcendental deduction? (2) Is it merely an historical accident that Kant could only identify one set of categories, or, are there, apart from Kant's explicit commitment to one particular set of categories, any other claims within the Transcendental Analytic, which are incompatible with this extension of Kant's view? (shrink)

Gender-neutral bathrooms are usually framed as an accommodation for trans and other gender-nonconforming individuals. In this paper, we show that the benefits of gender-neutral bathrooms are much broader. First, our simulations show that gender-neutral bathrooms reduce average waiting times: while waiting times for women go down invariably, waiting times for men either go down or slightly increase depending on usage intensity, occupancy-time differentials and the presence of urinals. Second, our result can be turned on its head: firms have an opportunity (...) to reduce the number of facilities and cut costs by making them all gender-neutral without increasing waiting times. These observations can be used to reframe the gender-neutral bathrooms debate so that they appeal to a larger constituency, cutting across the usual dividing lines in the ‘bathroom wars’. Finally, there are improved designs and behavioural strategies that can help overcome resistance. We explore what strategies can be invoked to mitigate the objections that gender-neutral bathrooms (1) are unsafe, (2) elicit discomfort and (3) are unhygienic. (shrink)

Dans cet article, je considère l’influence possible des recherches récentes sur les attitudes en psychologie sociale, principalement dans le paradigme des théories des processus duaux [dual process theories], sur notre compréhension de la responsabilité. La thèse que je soutiens est que certaines révisions à notre façon de comprendre la responsabilité et nos pratiques d’attribution de la responsabilité pourraient être justifiées par ces travaux. Avant de présenter les révisions que j’introduis, je décris les grandes lignes du paradigme que j’utiliserai, soit celui (...) des théories processus duaux tel qu’appliqué aux attitudes. Puis, m’inspirant de Vargas (2004, 2005), je présente les différentes formes que peuvent prendre le révisionnisme. Parce que ces révisions s’appliquent à des notions qui sont utilisées à la fois par le commun des mortels et par les philosophes (qui tentent soit de les reconstruire rationnellement, soit de les modifier), je présente ce que l’on présume que pense chacun des groupes sur la question. Finalement, je présente trois révisions, plutôt « locales », que ces travaux pourraient inspirer. (shrink)

At the heart of two recent theological traditions are hermeneutical principles which are not only consistent but are integrated in the hermeneutics of Augustine. According to the doctrine of biblical inerrancy as it has been recently articulated by Evangelicals, Scripture has an original meaning, and that meaning is not open to the possibility of error. According to some thinkers in postmodern theology, including Jean-Luc Marion, the meaning of Scripture transcends its original meaning. After examining postmodernism and inerrancy, I consider their (...) harmony in the writings of Augustine, who takes original meaning as a guide for understanding that biblical meaning which transcends it. An Augustinian hermeneutic consistent with inerrancy is thus an alternative to the more typical non-inerrantist postmodern theologies. (shrink)

Navigating Postmodern Theology: Insights from Jean-Luc Marion and Gianni Vattimo’s Philosophy provides an introduction to these two authors in relation to theology and metaphysics. This book invites the reader to consider new ways of thinking about theology in a postmetaphysical way, grounded in Marion’s phenomenology and Vattimo’s philosophy.

In the Self's Place: The Approach of Saint Augustine presents Jean-Luc Marion's rethinking of the modern notion of the self by way of an original reading of Saint Augustine through the lens of a phenomenology of givenness. Here he tests the hermeneutic validity of concepts forged in his previous works. His goal is to show that the Confessiones are inscribed within the confessio, that love is an underlying epistemic condition of truth, and that God's call and our response to God (...) are both gifts. Ultimately, Marion points us toward a conception of the self that is at once postmodern and very Augustinian. (shrink)

Festschrift in Honor of Barry Smith on the occasion of his 65th Birthday. Published as issue 4:4 of the journal Cosmos + Taxis: Studies in Emergent Order and Organization. Includes contributions by Wolfgang Grassl, Nicola Guarino, John T. Kearns, Rudolf Lüthe, Luc Schneider, Peter Simons, Wojciech Żełaniec, and Jan Woleński.

This article demonstrates a novel conceptualization of sublimity: the sublime in the pedestrian. This pedestrian mode of sublimity is exemplified by the Biblical Abraham, the central figure of Kierkegaard’s pseudonymous Fear and Trembling. It is rooted in the analysis of one of the foundational stories of the three monotheistic religions: Abraham’s averted sacrifice of his son Isaac. The defining feature of this new, pedestrian mode of sublimity is that is remains hidden behind what I call a total incognito. It is (...) similar to the classical ‘elevated mode of sublimity’ as developed by Burke, Kant, and Schiller insofar as it denotes two contrasting feelings at once: repulsion and attraction. It is different insofar as Kierkegaard’s pedestrian mode of sublimity remains hidden from view and can only be shown indirectly. This article expounds the new, pedestrian mode of sublimity by investigating the relation between the incognito and the sublime in Fear and Trembling. It achieves that goal by engaging three perspectives: (1) the sublime failure that comes to the fore in the incognitos of an imaginary Abraham; (2) the ‘fear without being afraid’ that is invoked by God’s incognitos; (3) the total incognito of the pedestrian which conceals Abraham’s sublimity. (shrink)

El presente estudio sirve de Prefacio a nuestra traducción del libro de Jean-Luc Marion: Cuestiones cartesianas. Método y Metafísica, Buenos Aires, Prometeo, 2012, pp. 9-40 (ISBN 978-987-574-463-9). Presentamos aquí el primer volumen de las Cuestiones Cartesianas, publicado por primera vez en 1991, y dedicado, como lo indica su subtítulo, a la relación, o mejor, a las sucesivas relaciones, a lo largo del corpus cartesiano, entre método y metafísica. Aunque se presentan como una recopilación de estudios autónomos, y son tales, la (...) significación de estas cuestiones, y la radicalidad del cuestionamiento que ellas plantean, deben entenderse por el lugar que ellas ocupan en la totalidad de la obra que J.-L. Marion dedicara a la filosofía de Descartes, esto es, en una doble continuidad. En primer lugar, estas cuestiones no se acaban aquí y se continúan en otro volumen, publicado cinco años después, bajo el mismo título y dedicado a los dos entes, ego y Dios, que se erigen, alternativamente, en principios de la metafísica cartesiana. A su vez, el conjunto de las cuestiones cartesianas continúan, sin perder su autonomía, la densa trilogía que las antecede, en la cual sus dos pares de problemas, método y metafísica, ego y Dios, y sus distintas articulaciones, se plantean desde el primer momento de una larga investigación en la que las sucesivas interpretaciones aspiran a una interpretación global y nunca definitiva, dirigida a la ardua (re)constitución de la metafísica que Descartes lleva a cabo, o mejor, y en sentido más general, a la situación historial de la metafísica de Descartes. En lo que sigue, exponemos las tesis principales de esos tres libros, a saber: Sur l’ontologie grise de Descartes. Science cartésienne et savoir aritotélicien dans les Regulae, Paris, Vrin, 1975, 1981, 1992, 2000; Sur la théologie blanche de Descartes. Analogie, création des vérités éternelles, fondement, Paris, PUF, 1981, 1991; Sur le prisme métaphysique de Descartes. Constitution et limites de l’onto-théo-logie cartésienne, Paris, PUF, 1986, 2000. (Hay traducciones al español y al inglés). Luego, exponemos crìticamente los estudios contendis en el libro que introducimos, Cuestiones Cartsianas. Mètodo y Metafìsica para finalmente discutir el lugar que la exègesis cartesiana ocupa en la obra filosófica general de Jean-Luc Marion. (shrink)

At a distance of more ten years from publication (2000 French/2005 English translation), with this essay I will re-read, comment and discuss, in different way and in form of anthological sketch, the Derridean volume ‘On Touching-Jean Luc Nancy’, focusing in particular on its ‘tangents and its metonymies’, its manifold entanglements with the metaphysics of touch and bodily connections. Making use of the geometrical figure of the tangent, Derrida affirms that "[if] philosophy has touched the limit [my emphasis-J. D. ]. of (...) the ontology of subjectivity, this is because philosophy has been led to this limit”. To touch is to touch a limit, a limit without depth or surface. How have we regarded touching in the past? The body? My thesis is that if Derridean reflection remains mostly anchored to Jean-Luc Nancy’s Corpus, it is inspired nevertheless by a different deconstructive gesture/s similar to different geometric tangents (the deconstructive practice is similar to the tracing of many tangents). Discussing in particular Nancy’s Dis-Enclosure: The Deconstruction of Christianity, Derrida’essay ‘Deconstruction of Christianity’ and devoting an entire section of the book to the sense of touch in the Gospels, Derrida gives us numerous and special considerations on deconstruction and the deconstruction of touch in Christianity, admitting as well the enormity of this task. A reflection on the Kas Saghafi, “Safe, Intact”: Derrida, Nancy, and the “Deconstruction of Christianity” will follow in an exemplary way. Following a discussion of touch and the body in both animal and human spheres, in the closing section of the essay, I will comment on the Patrick Llored’s essay A Philosophy of Touching Between the Human and the Animal: The Animal Ethics of Jacques Derrida, recently published in A Companion to Derrida (2014). This study addresses highly topical questions such as: ‘What does it teach us about touch, but also about the body and the life of the animal? To what extent is it capable of renewing our knowledge [connaissance] of non-human life and of generating an animal ethics reconceived from top to bottom? If touching is coextensive with the living body, that implies not only that we place the haptical question at the centre of reflection on the animal, but also that we take into account the consequence that is most disruptive for us today (A Companion, p. 512). And conclude along with Patrick Llored that the question of touch promises to transform everything we have understood until now about animality. (shrink)

In this essay, I argue that Søren Kierkegaard’s oeuvre can be seen as a theater of ideas. This argument is developed in three steps. First, I will briefly introduce a theoretical framework for addressing the theatrical dimension of Kierkegaard’s works. This framework is based on a distinction between“performative writing strategies” and “categories of performativity.” As a second step, I will focus on Repetition: A Venture in Experimenting Psychology, by Constantin Constantius, one of the best examples of Kierkegaard’s innovative way of (...) doing philosophy. This strange and elusive book introduces the difficult and counter-intuitive notion of repetition. Repetition is a category of performativity that aims to activate the subjectivity of the reader. This performative effect is achieved by confronting the reader with an “unresolved”existential problem that is not yet drawn into clarity but is staged in all its confusions and contradictions. Kierkegaard’s pseudonym Constantius relies here on a performative writing strategy that is animated by a dialectic of advance and withdrawal. In the last and third step, I will analyze Constantius’s own reflection on the performative dimension of his text. Constantius has left several clues behind, each of which suggests that he deliberately developed a performative writing strategy. (shrink)

For Kierkegaard the ‘psychological experiment’ is a literary strategy. It enables him to dramatize an existential conflict in an experimental mode. Kierkegaard’s aim is to study the source of movement that animates the existing individual (this is the psychological part). However, he is not interested in the representation of historical individuals in actual situations, but in the construction of fictional characters that are placed in hypothetical situations; this allows him to set the categories in motion “in order to observe completely (...) undisturbed what these require” without caring to what extent someone has met this requirement or is able to meet it (this is the experimental part). -/- The ‘psychological experiment’ is a category of indirect communication that is developed most extensively by Frater Taciturnus, the pseudonymous author of the third part of Stages on Life’s Way. (I) Taciturnus introduces the psychological experiment as a new trajectory in modern literature that offers an alternative to poetry and speculative drama. He develops this new trajectory in praxis (in the novella ‘“Guilty?”/“Not Guilty?” A Story of Suffering: A Psychological Experiment by Frater Taciturnus’) as well as in theory (in the ‘Letter to the Reader’ that accompanies his novella). (II) Two other pseudonymous authors further enrich the conceptual field of the psychological experiment. Constantin Constantius develops the notion ‘experimenting psychology’; Johannes Climacus reflects on the reader’s contemporaneity with the character. (shrink)

The paper surveys the currently available axiomatizations of common belief (CB) and common knowledge (CK) by means of modal propositional logics. (Throughout, knowledge- whether individual or common- is defined as true belief.) Section 1 introduces the formal method of axiomatization followed by epistemic logicians, especially the syntax-semantics distinction, and the notion of a soundness and completeness theorem. Section 2 explains the syntactical concepts, while briefly discussing their motivations. Two standard semantic constructions, Kripke structures and neighbourhood structures, are introduced in Sections (...) 3 and 4, respectively. It is recalled that Aumann's partitional model of CK is a particular case of a definition in terms of Kripke structures. The paper also restates the well-known fact that Kripke structures can be regarded as particular cases of neighbourhood structures. Section 3 reviews the soundness and completeness theorems proved w.r.t. the former structures by Fagin, Halpern, Moses and Vardi, as well as related results by Lismont. Section 4 reviews the corresponding theorems derived w.r.t. the latter structures by Lismont and Mongin. A general conclusion of the paper is that the axiomatization of CB does not require as strong systems of individual belief as was originally thought- only monotonicity has thusfar proved indispensable. Section 5 explains another consequence of general relevance: despite the "infinitary" nature of CB, the axiom systems of this paper admit of effective decision procedures, i.e., they are decidable in the logician's sense. (shrink)

The Danish word 'incognito' means to appear in disguise, or to act under an unfamiliar, assumed name (or title) in order to avoid identification. As a concept, incognito occurs in several of Kierkegaard’s works, but only becomes a subject of reflection in two: the Concluding Unscientific Postscript to Philosophical Fragments by Johannes Climacus and Practice in Christianity by Anti-Climacus. Both pseudonyms develop the concept from their own perspective and must be understood on their own terms. Johannes Climacus treats incognito as (...) a category of existence, defining it as a comic contradiction that creates a disguise in order to hide and protect the inwardness of the existing individual. However, Anti-Climacus treats incognito as a category of communication. He defines it as “a sign of contradiction” that creates a disguise in order to activate and disclose the inwardness of a listener or reader. (shrink)

-/- In Plato's work the "Sophist", Socrates, who typically occupies a central position in Plato's dialogues, is assigned a supporting role. This has led some scholars to argue for a shift in Plato's oeuvre, where he distances himself from Socrates and introduces a new main protagonist. However, this new protagonist remains unnamed and is only identified by his social position as Xenos, indicating that he is an outsider and a stranger whose identity is ambiguous. In this article, I argue that (...) Plato's decision to leave the character unnamed serves to raise a first problem: the question of whether this stranger is a friend or an adversary of philosophy. At the beginning of the dialogue, Socrates employs a series of references to Homer to bring into play a second problem: the problem of disguise. The third problem, “What is a sophist?”, is attributed to the Xenos. This is the only problem that is explicitly developed and is, therefore, the most prominent in the dialogue. If we relate these three problems to each other, it becomes clear that they represent contradictory intuitions without providing us with a strict criterion for deciding which of these intuitions is correct. By presenting these problems in their entanglement without providing a way out, Plato invites his readers to think without making explicit what the outcome of this thinking should be. -/- [In Dutch: In de "Sofist" speelt Sokrates, vaak het meest prominente personage in Plato’s dialogen, alleen maar een bijrol. Dit heeft veel interpreten ertoe verleid om een breuk in het oeuvre van Plato te postuleren, waarbij Plato afstand zou nemen van Sokrates ten behoeve van een nieuw personage. Ik zal echter laten zien dat Plato er bewust voor kiest om dit nieuwe personage naamloos te laten en hem alleen aan te duiden via zijn sociale positie als xenos (vreemdeling). Hiermee roept Plato, zo zal ik betogen, impliciet een eerste probleem op: is deze naamlo- ze Xenos een vriend of een vijand van de filosofie? Aan het begin van de dialoog wordt er door Sokrates een tweede probleem in spel gebracht: het probleem van de vermomming. Het derde probleem — ‘wat is een sofist?’ — wordt toegeschreven aan de Xenos. Dit is het enige probleem dat expliciet wordt uitgewerkt en is dan ook het meest prominent aanwezig in de dialoog. Als we deze drie problemen op elkaar betrekken dan wordt duidelijk dat ze tegenstrijdige intuïties vertolken, zonder dat we een strikt criterium krijgen aangereikt om te beslissen welke van deze intuïties de juiste is. Door deze problemen in een nog niet ontwarde kluwen te presenteren, nodigt Plato zijn lezers uit tot denken, zonder expliciet te maken wat de uitkomst van dit denken zou moeten zijn.]. (shrink)