The author offers a critical commentary on Rousseau’s chapter on civil religion in the “Social Contract”, book 4, chapter 8. It investigates Rousseau’s attempt to overcome the conflict between politics and religion by merging a civil religion that creates an emotional bond to the particular state without fostering superstition and intolerance, and it shows that this attempt fails. It is demonstrated that Rousseau’s concept of civil religion neither offers any doctrine of salvation transcending this life nor prescribes any content going (...) beyond moral norms. Civil religion for Rousseau is in service to politics and its instrumental character is desired by the citizens who are supposed autonomously to agree on the need of a secularized civil ethic. (shrink)

The paper discusses the foundation and genesis of the political society according to Locke, elaborating why the relationship between the civil society and the government is not defined in contractual terms, but by the notion of “trust”. Rehm argues against the view that Locke supports a liberal proceduralism, stressing that consent for him is indeed the necessary, but not the sufficient condition of legitimate political power: what needs to be added is action in accordance with the law of nature.

Anosognosia for visual deficits—cases where significant visual deficits go unnoticed—challenges the view that our own conscious experiences are what we know best. We review these widespread and striking failures of awareness. Anosognosia can occur with total blindness, visual abnormalities induced by brain lesions, and eye diseases. We show that anosognosia for visual deficits is surprisingly widespread. Building on previous accounts, we introduce a framework showing how apparently disparate forms of anosognosia fit together. The central idea is that, to notice a (...) deficit, individuals need to form expectations about normal vision, compare expectations and visual input, and judge any mismatch at the metacognitive level. A failure in any of these three steps may lead to unawareness of visual deficits. (shrink)

Is Rousseau an advocate of natural law or not? The purpose of Rehm’s paper is to suggest a positive answer to this controversially discussed question. On the one hand, Rousseau presents a critical history of traditional natural law theory which in his view is based on flawed suppositions: not upon natural, but on artificial qualities of man, and even rationality and sociability are counted among the latter. On the other hand he presents the self-confident manifesto for a fresh start (...) in natural law theory, founded on what to Rousseau’s mind is the true idea of human nature. The paper intends to show that the only natural qualities which can be seen as anthropological constants are those that keep man flexible, namely perfectibility and freedom of will. It is argued that these are exactly the qualities which according to Rousseau serve as the standard of natural law for the system of politics and its laws: Only a state based upon the free consent of individuals can do justice to man’s perfectibility and freedom of will. Rehm stresses that because of perfectibility and freedom of will, this self-commitment has to be revisable, which is why the republic of the “Social Contract” should not have a constitution, or any law that the citizens cannot alter. It is demonstrated that in Rousseau’s view, this republic is the enabling condition of natural liberty. -/- . (shrink)

The paper is an analysis of Rousseau’s concept of property. It shows that Rousseau wants to draft a new system of politics that will not forbid private property but will limit its scale. It aims to clarify that Rousseau owes much to John Locke’s theory and even adopts Locke’s definition that it is a basic purpose of the social contract to protect the citizen’s property. It is argued that in spite of these similarities Rousseau’s account differs fundamentally from Locke’s. Having (...) a right of ownership to something for Locke means to be entitled to exclude anybody else from it: to say “this is mine” in Locke is synonymous to “it is not yours”. For Rousseau having a right of ownership to something implies a self-limitation by the proprietor: to say “this is mine” in Rousseau signifies “everything else is not mine”. While property rights in Locke have the purpose of legitimizing “pleonexia” and economic inequality, Rousseau tries to use them as restrictions to citizens’ desires and greed. (shrink)

The paper is devoted to demonstrating the systematic value of the “Two Treatises of Government”. Even though their genesis is rooted in the political circumstances of Locke’s life-time, the “Treatises” are not simply a pamphlet designed to support the Whig cause, as Locke’s political ideas are derived from his theoretical philosophy and from his concept of natural law.

The purpose of this article is to explore Thomas Hobbes’ renunciation of a prominent concept of the social contract that distinguishes between two different contracts, namely, “pactum associationis” and “pactum subiectionis”.

The claim of this paper is to show that the “Discourse on the Arts and Sciences” does not propose a general critique of progress as such, but a critique of the idea of progress as promoted by the 18th century “philosophers”. It is argued that Rousseau is no proponent of a Counter-Enlightenment, on the contrary he aims to go further than other thinkers of his time by scrutinizing even progress itself, Enlightenment’s pet notion. In defining arts and sciences as the (...) very driving forces of progress, the “philosophers” according to Rousseau are fostering inequality, because only an elite will be able to succeed in them. By contrast, talking about progress in Rousseau’s view only makes sense if “progress” is defined in moral and political terms, as enabling all men to participate in the promotion of everybody’s well-being. The paper intends to show that Rousseau’s answer to the shortcomings of civilization is not a “return to nature”, but the advancement of artificial institutions: namely, the egalitarian republic. (shrink)

It appears that Rousseau has annulled the dichotomy between man and citizen for the benefit of the citizen – after all, the social contract implies the “total alienation of each associate, together with all his rights, to the whole community”. Does this not mean the individual is completely absorbed by the collectivity? The paper takes up the role of religion for politics in Rousseau’s work to show that even civil religion cannot help to re-establish the lost unity between man and (...) citizen, on the contrary, it only makes this division visible. As long as the individual is part of the body politic, he or she has to accept having a fragmented existence. The text aims to clarify that Rousseau blamed the protagonists of the established churches as well as his fellow Enlightenment philosophers for striving to overcome the contradictions of human existence, while Rousseau himself defended the distinction between “res privata” and “res publica” and the tensions it might cause in the individual. The paper therefore suggests a liberal reading of Rousseau. (shrink)

Opponents to consciousness in fish argue that fish do not feel pain because they do not have a neocortex, which is a necessary condition for feeling pain. A common counter-argument appeals to the multiple realizability of pain: while a neocortex might be necessary for feeling pain in humans, pain might be realized differently in fish. This paper argues, first, that it is impossible to find a criterion allowing us to demarcate between plausible and implausible cases of multiple realization of pain (...) without running into a circular argument. Second, opponents to consciousness in fish cannot be provided with reasons to believe in the multiple realizability of pain. I conclude that the debate on the existence of pain in fish is impossible to settle by relying on the multiple realization argument. (shrink)

To study (un)conscious perception and test hypotheses about consciousness, researchers need procedures for determining whether subjects consciously perceive stimuli or not. This article is an introduction to a family of procedures called ‘confidence-based procedures’, which consist in interpreting metacognitive indicators as indicators of consciousness. I assess the validity and accuracy of these procedures, and answer a series of common objections to their use in consciousness research. I conclude that confidence-based procedures are valid for assessing consciousness, and, in most cases, accurate (...) enough for our practical and scientific purposes. (shrink)

I develop a theory of counterfactuals about relative computability, i.e. counterfactuals such as 'If the validity problem were algorithmically decidable, then the halting problem would also be algorithmically decidable,' which is true, and 'If the validity problem were algorithmically decidable, then arithmetical truth would also be algorithmically decidable,' which is false. These counterfactuals are counterpossibles, i.e. they have metaphysically impossible antecedents. They thus pose a challenge to the orthodoxy about counterfactuals, which would treat them as uniformly true. What’s more, I (...) argue that these counterpossibles don’t just appear in the periphery of relative computability theory but instead they play an ineliminable role in the development of the theory. Finally, I present and discuss a model theory for these counterfactuals that is a straightforward extension of the familiar comparative similarity models. (shrink)

The question whether a constitutive linguistic norm can be prescriptive is central to the debate on the normativity of meaning. Recently, the author has attempted to defend an affirmative answer, pointing to how speakers sporadically invoke constitutive linguistic norms in the service of linguistic calibration. Such invocations are clearly prescriptive. However, they are only appropriate if the invoked norms are applicable to the addressed speaker. But that can only be the case if the speaker herself generally accepts them. This qualification (...) has led critics to argue that if an addressed speaker’s acceptance is a necessary condition for legitimate prescriptions (and reproach for failure to adhere to them), then the account becomes unable to underwrite actual normativity. Moreover, critics argue, a danger of vicious circularity arises from the calibration account. This paper shows that once a vantage point within the calibration practice is accepted, the criticisms lose their force. It then explores why a theorist might reject such a perspective and suggests, as a plausible candidate, implicit Humean assumptions about the proper explanation of (linguistic) action. The paper ends by sketching a way forward for the debate on the normativity of meaning in light of this diagnosis. (shrink)

Having a confirmation bias sometimes leads us to hold inaccurate beliefs. So, the puzzle goes: why do we have it? According to the influential argumentative theory of reasoning, confirmation bias emerges because the primary function of reason is not to form accurate beliefs, but to convince others that we’re right. A crucial prediction of the theory, then, is that confirmation bias should be found only in the reasoning domain. In this article, we argue that there is evidence that confirmation bias (...) does exist outside the reasoning domain. This undermines the main evidential basis for the argumentative theory of reasoning. In presenting the relevant evidence, we explore why having such confirmation bias may not be maladaptive. (shrink)

Local theories of consciousness state that one is conscious of a feature if it is adequately represented and processed in sensory brain areas, given some background conditions. We challenge the core prediction of local theories based on long-lasting postdictive effects demonstrating that features can be represented for hundreds of milliseconds in perceptual areas without being consciously perceived. Unlike previous empirical data aimed against local theories, localists cannot explain these effects away by conjecturing that subjects are phenomenally conscious of features that (...) they cannot report. We also discuss alternative explanations that localists could offer. (shrink)

Doerig et al. have set several criteria that theories of consciousness need to fulfill. By these criteria, higher-order theories fare better than most existing theories. But they also argue that higher-order theories may not be able to answer both the ‘small network argument’ and the ‘other systems argument’. In response, we focus on the case of the Perceptual Reality Monitoring theory to explain why higher-order theories do just fine.

To study consciousness, scientists need to determine when participants are conscious and when they are not. They do so with consciousness detection procedures. A recurring skeptical argument against those procedures is that they cannot be calibrated: there is no way to make sure that detection outcomes are accurate. In this article, I address two main skeptical arguments purporting to show that consciousness scientists cannot calibrate detection procedures. I conclude that there is nothing wrong with calibration in consciousness science.

Studying consciousness requires contrasting conscious and unconscious perception. While many studies have reported unconscious perceptual effects, recent work has questioned whether such effects are genuinely unconscious, or whether they are due to weak conscious perception. Some philosophers and psychologists have reacted by denying that there is such a thing as unconscious perception, or by holding that unconscious perception has been previously overestimated. This article has two parts. In the first part, I argue that the most significant attack on unconscious perception (...) commits the criterion content fallacy: the fallacy of interpreting evidence that observers were conscious of something as evidence that they were conscious of the task-relevant features of the stimuli. In the second part, I contend that the criterion content fallacy is prevalent in consciousness research. For this reason, I hold that if unconscious perception exists, scientists studying consciousness could routinely underestimate it. I conclude with methodological recommendations for moving the debate forward. (shrink)

The current global COVID-19 pandemic has led to a deep and multidimensional crisis across all sectors of society. As countries contemplate their mobility and social-distancing policy restrictions, we have a unique opportunity to re-imagine the deliberative frameworks and value priorities in our food systems. Pre-pandemic food systems at global, national, regional and local scales already needed revision to chart a common vision for sustainable and ethical food futures. Re-orientation is also needed by the relevant sciences, traditionally siloed in their disciplines (...) and without adequate attention paid to how the food system problem is variously framed by diverse stakeholders according to their values. From the transdisciplinary perspective of food ethics, we argue that a post-pandemic scheme focused on bottom-up, regional, cross-sectoral and non-partisan deliberation may provide the re-orientation and benchmarks needed for not only more sustainable, but also more ethical food futures. (shrink)

Is perceptual processing in dedicated sensory areas sufficient for conscious perception? Localists say ‘Yes—given some background conditions.’ Prefrontalists say ‘No: conscious perceptual experience requires the involvement of prefrontal structures.’ I review the evidence for prefrontalism. I start by presenting correlational evidence. In doing so, I answer the ‘report argument’, according to which the apparent involvement of the prefrontal cortex in consciousness stems from the requirement for reports. I then review causal evidence for prefrontalism and answer the ‘lesion argument’, which purports (...) to show that prefrontalism is wrong because lesions to the prefrontal cortex do not abolish consciousness. I conclude that multiple sources of evidence converge toward the view that the prefrontal cortex plays a significant role in consciousness. (shrink)

Some moral value is transparent just in case an agent with average mental capacities can feasibly come to know whether some entity does, or does not, possess that value. In this paper, I consider whether legitimacy—that is, the property of exercises of political power to be permissible—is transparent. Implicit in much theorising about legitimacy is the idea that it is. I will offer two counter-arguments. First, injustice can defeat legitimacy, and injustice can be intransparent. Second, legitimacy can play a critical (...) function in our practical thought, which sometimes requires intransparency. (shrink)

Whether the prefrontal cortex is part of the neural substrates of consciousness is currently debated. Against prefrontal theories of consciousness, many have argued that neural activity in the prefrontal cortex does not correlate with consciousness but with subjective reports. We defend prefrontal theories of consciousness against this argument. We surmise that the requirement for reports is not a satisfying explanation of the difference in neural activity between conscious and unconscious trials, and that prefrontal theories of consciousness come out of this (...) debate unscathed. (shrink)

As for most measurement procedures in the course of their development, measures of consciousness face the problem of coordination, i.e., the problem of knowing whether a measurement procedure actually measures what it is intended to measure. I focus on the case of the Perceptual Awareness Scale to illustrate how ignoring this problem leads to ambiguous interpretations of subjective reports in consciousness science. In turn, I show that empirical results based on this measurement procedure might be systematically misinterpreted.

Any intermediate propositional logic can be extended to a calculus with epsilon- and tau-operators and critical formulas. For classical logic, this results in Hilbert’s $\varepsilon $ -calculus. The first and second $\varepsilon $ -theorems for classical logic establish conservativity of the $\varepsilon $ -calculus over its classical base logic. It is well known that the second $\varepsilon $ -theorem fails for the intuitionistic $\varepsilon $ -calculus, as prenexation is impossible. The paper investigates the effect of adding critical $\varepsilon $ - (...) and $\tau $ -formulas and using the translation of quantifiers into $\varepsilon $ - and $\tau $ -terms to intermediate logics. It is shown that conservativity over the propositional base logic also holds for such intermediate ${\varepsilon \tau }$ -calculi. The “extended” first $\varepsilon $ -theorem holds if the base logic is finite-valued Gödel–Dummett logic, and fails otherwise, but holds for certain provable formulas in infinite-valued Gödel logic. The second $\varepsilon $ -theorem also holds for finite-valued first-order Gödel logics. The methods used to prove the extended first $\varepsilon $ -theorem for infinite-valued Gödel logic suggest applications to theories of arithmetic. (shrink)

In this paper, I examine Alston's arguments for doxastic involuntarism. Alston fails to distinguish (i) between volitional and executional lack of control, and (ii) between compatibilist and libertarian control. As a result, he fails to notice that, if one endorses a compatibilist notion of voluntary control, the outcome is a straightforward and compelling case for doxastic voluntarism. Advocates of involuntarism have recently argued that the compatibilist case for doxastic voluntarism can be blocked by pointing out that belief is never intentional. (...) In response to this strategy, I distinguish between two types of intentionality and argue that belief is no less intentional than action is. (shrink)

This chapter presents the perceptual reality monitoring theory of consciousness (PRM). PRM is a higher-order theory of consciousness. It holds that consciousness involves monitoring the reliability of one’s own sensory signals. I explain how a perceptual reality monitoring mechanism computes the higher order representations that are crucial for consciousness. While PRM accounts for the difference between conscious and unconscious states, it does not explain, on its own, why experiences feel the way they do—the phenomenal character of experience. PRM is compatible (...) with multiple theories of phenomenal character. Here, I show how to combine it with ‘Mental Quality Space’ theory. I finish by presenting empirical evidence for PRM, as well as some of its predictions. (shrink)

A foundationalist account of the justification of our empirical beliefs is committed to the following two claims: (1) Sense experience is a source of justification. (2) Some empirical beliefs are basic: justified without receiving their justification from any other beliefs. In this paper, I will defend each of these claims against an objection. The objection to (1) that I will discuss is due to Donald Davidson. He writes: The relation between a sensation and a belief cannot be logical, since sensations (...) are not beliefs or other propositional attitudes. What then is the relation? The answer is, I think, obvious: the relation is causal. Sensations cause some beliefs and in this sense are the basis or ground of those beliefs. But a causal explanation of a belief does not show how or why the belief is justified. [1] There are two important thoughts in this passage. The first of these is explicitly expressed, the second implied: (3) Sense-experiential states are devoid of propositional content. (4) Necessarily, if a mental state can play the role of a justifier, it has propositional content. (3) and (4) entail that a sense-experiential state cannot play the role of a justifier. If that is true, then (1) is false. This, in any case, seems to me to be Davidson's argument. In response to it, I accept (4) but reject (3). This is an unusual move for foundationalists, who tend to accept (3) and deny (4). Nevertheless, it is what I take to be the right move. (shrink)

Consciousness is scientifically challenging to study because of its subjective aspect. This leads researchers to rely on report-based experimental paradigms in order to discover neural correlates of consciousness (NCCs). I argue that the reliance on reports has biased the search for NCCs, thus creating what I call 'methodological artefacts'. This paper has three main goals: first, describe the measurement problem in consciousness science and argue that this problem led to the emergence of methodological artefacts. Second, provide a critical assessment of (...) the NCCs put forward by the global neuronal workspace theory. Third, provide the means of dissociating genuine NCCs from methodological artefacts. (shrink)

Some European countries legally recognise a “right to roam”—a right to freely traverse across land, even if privately owned. Political philosophers have paid little attention to the right, and have often conceptualised property rights to include strong claim-rights to exclude others. I offer an account of the right to roam, and consider whether it can be philosophically justified on a left-liberal account of property. After finding a defence in terms of the interests served by the right lacking, I suggest that (...) the most promising defence of the right to roam is that it serves as a symbolic reminder of a fundamental type of social equality. (shrink)

Wilhelm Ostwald’s program of a physical energetics is the attempt at a comprehensive description of nature on the basis of the concept of energy. In his book Energetische Grundlagen der Kulturwissenschaft, first published in 1909, Ostwald applies this conception to the area of culture. His central assumption is that cultural phenomena should be described by the energetic notion of “efficiency relation” (Güteverhältnis). His systematic thesis is that science, when organized according to the Machian “principle of economy,” proves as the highest (...) form of cultural expression, since it instantiates the notion of quality relation most efficiently, that is, “with the lowest energy expenditure.” This view echoes August Comte’s “law of the three stages” and is intended to supply it with a scientific, i.e., energetic foundation. Max Weber regarded Ostwald’s energetic theory of culture as a misguided attempt at an absolutization of the methods of concept formation within the natural sciences. As he wrote in his devastating review essay “’Energetische’ Kulturtheorien” (1909), Ostwald transformed a certain world view (Weltbild) into a scientifically frivolous ideology (Weltanschauung). In particular, Ostwald’s adherence to the Comtean law of three stages and the associated hierarchy of the sciences were criticized by Weber as outdated and completely beside the point. According to Weber, the concepts of the cultural sciences are not at all dependent on natural scientific concepts such as ‘energy.’ In his view, culture cannot be reduced to nature. But exactly this seemed to be the principal aim of Ostwald’s program. In this paper, I will critically investigate Weber’s critique of that program. I shall argue that Ostwald’s assumption of a natural basis of culture can be ‘rescued’ as a methodological device, but that Ostwald’s – thoroughly substantialist – view of energy should be discarded as a metaphysical relict of ancient ‘stuff ontology.’ . (shrink)

In our contemporary world, the rights of nature have become an important legal device for environmental protection. Some of the most influential rights of nature frameworks can be found in non-Western contexts and have been strongly influenced by ecocentric accounts of nature. This article addresses the question of whether rights of nature can be implemented in Western contexts as well, focusing in particular on Europe. It first examines ecocentric justifications of the rights of nature and discusses two possible non-ecocentric alternatives. (...) Second, two models for implementing rights of nature—the nature’s rights model and the legal personhood model—are compared to demonstrate how different combinations of elements from both models can fit different socio-cultural contexts, including Western ones. (shrink)

Die meisten Ethik- und Philosophie-Lehrpläne sehen vor, dass Schüler/innen die Grundlagen der Moralphilosophie kennen und verstehen. Im vorliegenden Beitrag nennen und erläutern wir einige Probleme, die der Erreichung dieses Ziels entgegenstehen. Eines dieser Probleme – die Vermischung unterschiedlicher Fragen – illustrieren wir an einer konkreten Lehreinheit. Anschließend skizzieren wir schädliche Folgen dieses Problems und deuten mögliche Wege zu seiner Beseitigung an.

Psychiatric research is in crisis because of repeated failures to discover new drugs for mental disorders. Lack of measurement validity could partly account for these failures. If researchers do not actually measure the effects of drugs on the disorders they aim to investigate, one should expect suboptimal treatment outcomes. I argue that this is the case, focusing on depression, and fear & anxiety disorders. In doing so, I show how psychiatric research illustrates a more general phenomenon that I call “validity (...) drift.” A validity drift occurs when, in the course of developing new measurement procedures, researchers end up studying something different from what they originally aimed to study. I analyze the different ways in which scientists attempt to validate procedures for measuring mental disorders for the purpose of testing drugs in animal models. I show how those validation efforts might fail, thereby leading to validity drifts. Overall, this analysis highlights the complex interplay between the development of new measurement procedures, their calibration, and scientific theories of the target phenomena. (shrink)

According to a standard criticism, Robert Brandom's “normative pragmatics”, i.e. his attempt to explain normative statuses in terms of practical attitudes, faces a dilemma. If practical attitudes and their interactions are specified in purely non-normative terms, then they underdetermine normative statuses; but if normative terms are allowed into the account, then the account becomes viciously circular. This paper argues that there is no dilemma, because the feared circularity is not vicious. While normative claims do exhibit their respective authors' practical attitudes (...) and thereby contribute towards establishing the normative statuses they are about, this circularity is not a mark of Brandom's explanatory strategy but a feature of social practice of which we theorists partake. (shrink)

According to the global neuronal workspace model of consciousness, consciousness results from the global broadcast of information throughout the brain. The global neuronal workspace is mainly constituted by a fronto-parietal network. The anterior insular cortex is part of this global neuronal workspace, but the function of this region has not yet been defined within the global neuronal workspace model of consciousness. In this review, I hypothesize that the anterior insular cortex implements a cross-modal priority map, the function of which is (...) to determine priorities for the processing of information and subsequent entrance in the global neuronal workspace. (shrink)

A general class of labeled sequent calculi is investigated, and necessary and sufficient conditions are given for when such a calculus is sound and complete for a finite -valued logic if the labels are interpreted as sets of truth values. Furthermore, it is shown that any finite -valued logic can be given an axiomatization by such a labeled calculus using arbitrary "systems of signs," i.e., of sets of truth values, as labels. The number of labels needed is logarithmic in the (...) number of truth values, and it is shown that this bound is tight. (shrink)

A uniform construction for sequent calculi for finite-valued first-order logics with distribution quantifiers is exhibited. Completeness, cut-elimination and midsequent theorems are established. As an application, an analog of Herbrand’s theorem for the four-valued knowledge-representation logic of Belnap and Ginsberg is presented. It is indicated how this theorem can be used for reasoning about knowledge bases with incomplete and inconsistent information.

In this book review, I summarize the main argument of Tilo Wesche's book "Die Rechte der Natur: Vom nachhaltigen Eigentum" (The rights of Nature: On sustainable ownership) and conclude with a critical appraisal.

Negative subjective reports such as “I didn’t see the stimulus” can be interpreted as indicating either that the subject didn’t see the stimulus, or as indicating that, while the subject did see the stimulus, the strength of sensory signals associated with the stimulus fell below a conservative criterion for answering “seen”. Determining which of these two interpretations is correct is the criterion problem. I present two ways in which researchers can solve this problem. But there’s more. What I call the (...) “new criterion problem” consists in determining whether criteria effects reflect perceptual changes, or changes in response strategy. Through case studies, I argue that this new version of the problem can be solved as well, although there is currently no systematic way to solve it. I conclude that criterion problems do not constitute good reasons for skepticism about the scientific study of consciousness. (shrink)

In this paper we discuss the new Tweety puzzle. The original Tweety puzzle was addressed by approaches in non-monotonic logic, which aim to adequately represent the Tweety case, namely that Tweety is a penguin and, thus, an exceptional bird, which cannot fly, although in general birds can fly. The new Tweety puzzle is intended as a challenge for probabilistic theories of epistemic states. In the first part of the paper we argue against monistic Bayesians, who assume that epistemic states can (...) at any given time be adequately described by a single subjective probability function. We show that monistic Bayesians cannot provide an adequate solution to the new Tweety puzzle, because this requires one to refer to a frequency-based probability function. We conclude that monistic Bayesianism cannot be a fully adequate theory of epistemic states. In the second part we describe an empirical study, which provides support for the thesis that monistic Bayesianism is also inadequate as a descriptive theory of cognitive states. In the final part of the paper we criticize Bayesian approaches in cognitive science, insofar as their monistic tendency cannot adequately address the new Tweety puzzle. We, further, argue against monistic Bayesianism in cognitive science by means of a case study. In this case study we show that Oaksford and Chater’s (2007, 2008) model of conditional inference—contrary to the authors’ theoretical position—has to refer also to a frequency-based probability function. (shrink)

A construction principle for natural deduction systems for arbitrary, finitely-many-valued first order logics is exhibited. These systems are systematically obtained from sequent calculi, which in turn can be automatically extracted from the truth tables of the logics under consideration. Soundness and cut-free completeness of these sequent calculi translate into soundness, completeness, and normal-form theorems for natural deduction systems.

We investigate a lattice of conditional logics described by a Kripke type semantics, which was suggested by Chellas and Segerberg – Chellas–Segerberg (CS) semantics – plus 30 further principles. We (i) present a non-trivial frame-based completeness result, (ii) a translation procedure which gives one corresponding trivial frame conditions for arbitrary formula schemata, and (iii) non-trivial frame conditions in CS semantics which correspond to the 30 principles.

A major part of philosophical work is engagement with argumentative texts. Engaging with an argumentative text involves correctly identifying the arguments presented in this text. In the context of teaching philosophy in school, the difficulty of correctly identifying arguments in philosophical texts is often underestimated. In this paper, I focus on one specific problem with argument identification that has been neglected in philosophy didactics thus far: the problem that there are many non-argumentative phenomena in an argumentative text that are easily (...) misidentified as expressing (part of) an argument. It is easy to fall for such phenomena if one is not aware of this problem, thereby misinterpreting the author’s intentions. This paper aims to present and discuss such phenomena, as well as to provide guidelines on how to help students recognize them. (shrink)

The present paper is concerned with Helmholtz’s theory of measurement. It will be argued that an adequate understanding of this theory depends on how Helmholtz’s application of the concepts of perception and coincidence is interpreted. In contrast both to conventionalist and Kantian readings of Helmholtz’s theory, a more realistic interpretation will be suggested.

Logical empiricism is commonly seen as a counter-position to scientific realism. In the present paper it is shown that there indeed existed a realist faction within the logical empiricist movement. In particular, I shall point out that at least four types of realistic arguments can be distinguished within this faction: Reichenbach’s ‘probabilistic argument,’ Feigl’s ‘pragmatic argument,’ Hempel’s ‘indispensability argument,’ and Kaila’s ‘invariantist argument.’ All these variations of arguments are intended to prevent the logical empiricist agenda from the shortcomings of radical (...) positivism, instrumentalism, and other forms of scientific antirealism. On the whole, it will be seen that logical empiricism and scientific realism are essentially compatible with each other. Especially Kaila’s invariantist approach to science (and nature) comes quite close to what nowadays is discussed under the label ‘structural realism.’ This, in turn, necessitates a fundamental reevaluation of Kaila’s role in the logical empiricist movement in particular and in twentieth-century philosophy of science in general. (shrink)