This paper proposes the use of an argumentation framework with recursive attacks to address a trust model in a collaborative open multi-agent system. Our approach is focused on scenarios where agents share information about the credibility (informational trust) they have assigned to their peers. We will represent informants’ credibility through credibility objects which will include not only trust information but also the informant source. This leads to a recursive setting where the reliability of certain credibility information depends on the credibility (...) of other pieces of information that should be subject to the same analysis. Credibility objects are maintained in a credibility base which can have information in conflict. In this scenario, we will formally show that our proposal will produce a partially ordered credibility relation; such relation contains the information that can be justified by an argumentation process. (shrink)

Over the last decade, several extensions of Dung’s Abstract Argumentation Frameworks (AFs) have been introduced in the literature. Some of these extensions concern the nature of the attack relation, such as the consideration of recursive attacks, whereas others incorporate additional interactions, such as a support relation. Recently, the Attack–Support Argumentation Framework (ASAF) was proposed, which accounts for recursive attacks and supports, attacks to supports and supports to attacks, at any level, where the support relation is interpreted as necessity. Currently, to (...) determine the accepted elements of an ASAF (which may be arguments, attacks, and supports) it is required to translate such an ASAF into a Dung’s AF. In this work, we provide a formal characterization of acceptability semantics directly on the ASAF, without requiring such a translation. We prove that our characterization is sound since it satisfies different results from Dung’s argumentation theory; moreover, we formally show that the approach proposed here for addressing acceptability is equivalent to the preexisting one, in which the ASAF was translated into an AF. Also, we formalize the relationship between the ASAF and other frameworks on which it is inspired: the Argumentation Framework with Recursive Attacks (AFRA) and the Argumentation Framework with Necessities (AFN). (shrink)

This work introduces the Attack-Support Argumentation Framework (ASAF), an approach to abstract argumentation that allows for the representation and combination of attack and support relations. This framework extends the argumentation Framework with Recursive Attacks (AFRA) in two ways. Firstly, it adds a support relation enabling to express support for arguments; this support can also be given to attacks, and to the support relation itself. Secondly, it extends AFRA’s attack relation by allowing attacks to the aforementioned support relation. Moreover, since the (...) support relation of the ASAF has a necessity interpretation, the ASAF also extends the Argumentation Framework with Necessities (AFN). Thus, the ASAF provides a unified framework for representing attack and support for arguments, as well as attack and support for the attack and support relations at any level. (shrink)

This work formalizes an informant-based structured argumentation approach in a multi-agent setting, where the knowledge base of an agent may include information provided by other agents, and each piece of knowledge comes attached with its informant. In that way, arguments are associated with the set of informants corresponding to the information they are built upon. Our approach proposes an informant-based notion of argument strength, where the strength of an argument is determined by the credibility of its informant agents. Moreover, we (...) consider that the strength of an argument is not absolute, but it is relative to the resolution of the conflicts the argument is involved in. In other words, the strength of an argument may vary from one context to another, as it will be determined by comparison to its attacking arguments (respectively, the arguments it attacks). Finally, we equip agents with the means to express reasons for or against the consideration of any piece of information provided by a given informant agent. Consequently, we allow agents to argue about the arguments’ strength through the construction of arguments that challenge (respectively, defeat) or are in favour of their informant agents. (shrink)

Defeasible argumentation has been applied successfully in several real-world domains in which it is necessary to handle incomplete and contradictory information. In recent years, there have been interesting attempts to carry out argumentation processes supported by massive repositories developing argumentative reasoning applications. One of such efforts builds arguments by retrieving information from relational databases using the DBI-DeLP framework; this article presents eDBI-DeLP, which extends the original DBI-DeLP framework by providing two novel aspects which refine the interaction between DeLP programs and (...) relational databases. First, we expand the expressiveness of dbi-delp programs by providing ways of controlling how the information in databases is recovered; this is done by introducing filters that enable an improved fine-grained control on the argumentation processes which become useful in applications, providing the semantics and the implementation of such filters. Second, we introduce an argument comparison criterion which can be adjusted at the level of literals to model particular features such as credibility and topic expertise, among others. These new tools can be particularly useful in environments such as medical diagnosis expert systems, decision support systems, or recommender systems based on argumentation, where datasets are often provided in the form of relational databases. (shrink)

In this paper, I analyze the concept of ineffability: what does it mean to say that something cannot be said? I begin by distinguishing ineffability from paradox: if something cannot be said truly or without contradiction, this is not an instance of ineffability. Next, I distinguish two different meanings of ‘saying something’ which result from a fundamental ambiguity in the term ‘language’, viz. language as a system of symbols and language as a medium of communication. Accordingly, ‘ineffability’ is ambiguous, too, (...) and we should make a distinction between weak and strong ineffability. Weak ineffability is rooted in the deficiencies of a particular language while strong ineffability stems from the structure of a particular cognitive system and its capacities for conceptual mental representation. Mental contents are only sayable if we are able to conceptualize them and then create signs to represent them in communication. (shrink)

This chapter argues that Merleau-Ponty’s account of perception should be understood, not as a theory of perception in the usual sense, but as belonging squarely to transcendental philosophy. Contra the interpretation of Phenomenology of Perception as essentially a work in the philosophy of psychology, and the associated naturalistic construal of his ideas, it is suggested that Merleau-Ponty must be seen in the light of the history of transcendental philosophy and that an original form of idealism lies at the heart of (...) his philosophical project. The transcendental turn is presupposed by Merleau-Ponty’s claims regarding perception, and his key notion of ambiguity is a transcendental descendant of Kant’s strategy of establishing idealism by way of antinomy. (shrink)

This paper discusses the nonconceptual theory of mystical ineffability which claims that mystical experiences can’t be expressed linguistically because they can’t be conceptualized. I discuss and refute two objections against it: (a) that unconceptualized experiences are impossible, and (b) that the theory is ad hoc because it provides no reason for why mystical experiences should be unconceptualizable. I argue against (a) that distinguishing different meanings of ‘object of experience’ leaves open the possibility of non-empty but objectless nonconceptual experiences. I show (...) that (b) is a valid objection but can be countered by a new theory of mystical non-conceptuality: mystical experiences are not conceptual because the specific mode of mystical consciousness prevents conceptualization. The dissolution of the subjectivity of consciousness during mystical experiences undermines the very foundation of the possibility of conceptual thought and thus renders them ineffable. (shrink)

In vertebrate development, the HOX genes act to specify cell identity along much of the anterior‐posterior axis of the embryonic central nervous system. In all vertebrates examined to date, the vitamin A metabolite retinoic acid is implicated in the patterning of the anterior posterior axis and the induction of HOX gene expression. Two recent papers have extended the study of retinoic acid induction of HOX genes to the closest relatives of the vertebrates, amphioxus and tunicates(1,2). In both these species, exogenous (...) retinoic acid is able to induce ectopic expression of HOX 1 genes in the anterior central nervous system. This suggests that retinoic acid control of anterior‐posterior axis formation and HOX induction is not specific to vertebrates. However, in the more distantly related echinoderms and arthropods, retinoic acid does not seem to act in the same way. Thus the role of retinoic acid in anterior‐posterior axis specification may be a chordate innovation, perhaps linked to the evolution of another chordate character, the dorsal neural tube. (shrink)

Schelling’s 1809 Freiheitsschrift, perhaps his most widely read work, presents considerable difficulties of understanding. In this paper, I offer an interpretation of the work in relation to Kant. My focus is on the relation in each case of their theory of human freedom to their general metaphysics, a relation which both regard as essential. The argument of the paper is in sum that Schelling may be viewed as addressing and resolving a problem which faces Kant’s theory of freedom and transcendental (...) idealism, deriving from the challenge posed by Spinozism. One major innovation in Schelling’s theory of human freedom is his claim that it presupposes the reality of evil. I argue that Schelling’s thesis concerning evil also provides a key to the new and highly original metaphysics of the Freiheitsschrift. The relation of Schelling’s theory of freedom to his general metaphysics is therefore complex, for it goes in two directions: the metaphysics are not simply presupposed by the theory of freedom but are also in part derived from it. These new metaphysics also, I argue, allow Schelling to resolve a problem which his own earlier Spinozistic system had left unresolved. (shrink)

Kant's _Critique of Pure Reason_ is arguably the single most important work in western philosophy. The book introduces and assesses: * Kant's life and background of the _Critique of Pure Reason_ * the ideas and text of the _Critique of Pure Reason_ * the continuing relevance of Kant's work to contemporary philosophy. Ideal for anyone coming to Kant's thought for the first time. This guide will be vital reading for all students of Kant in philosophy.

The Introduction to this volume identifies and briefly summarizes certain issues which have been of central concern to philosophers in the transcendental tradition, including: the question of its relation to metaphysics; the relation of transcendentalism to transcendental idealism; the Kantian concept of a condition of possibility; the concepts of transcendental logic and of transcendental proof or argumentation; the concept of the transcendental turn and the issue of its justification; and the standpoint of transcendental reflection.

This chapter argues that both Berkeley and Vasubandhu accept a kind of metaphysical idealism: while Berkeley’s theistic idealism claims that all of reality exists only in the mind of God, Vasubandhu teaches that external objects have no intrinsic existence and exist only as objects of perception; mind is the ultimate reality. This chapter explores the possibility of reading both these doctrines as a kind of idealist panentheism. Specifically, it will address two questions: (1) in what sense are Berkeley’s and Vasubandhu’s (...) theories idealist philosophies? (2) Is it justified to interpret them as panentheists? More precisely, the second question has two parts: (2a) Should Berkeley’s idealism be regarded as a kind of panentheism? (2b) Can the theism-part of panentheism justly be applied to Vasubandhu’s notion of mind as ultimate reality? The answer will be mostly negative: Berkeley is not a panentheist, and labeling Vasubandhu as a panentheist stretches the concept of God beyond the limits of reasonable application. Finally, though, it is argued that a Yogācārin reading of Berkeley’s idealism opens an interesting possibility for idealist panentheism. (shrink)

Most philosophers of religion subscribe to some variety of religious realism: they believe that religious statements aim at capturing a mind-independent reality and are true precisely if they successfully do so. Curiously, most religious realists also believe that at least some of our religious beliefs are rationally justified. In this paper, I argue that these positions are actually at odds with each other. Religious realists should rather be religious skeptics. I first argue that realism always implies the possibility of our (...) beliefs being false. Then, I develop a Copernican argument to show that we have no reason to believe that we are in an epistemically privileged position where we could be confident that our particular belief is justified while all competing beliefs are not. This seems impossible for two reasons: (a) From a probabilistic point of view (adopting a principle of mediocrity), it is highly unlikely that current humans have the maximum of epistemic capacities possible. Rather, our ability to understand reality is limited, so we should expect at least some parts of religious reality to remain unknown to us. (b) From a deep-time perspective, humanity has not pondered religious questions for long. We are probably still in the early stages of our cognitive evolution, and so we should treat our religious beliefs as provisional and open to revision. (shrink)

This study focuses on the ancient commentaries on Plato’s Phaedo by Olympiodorus and Damascius and aims to present the relevance of their challenging and valuable readings of the dialogue to Neoplatonic ethics.

Kant's influence on the history of philosophy is vast and protean. The transcendental turn denotes one of its most important forms, defined by the notion that Kant's deepest insight should not be identified with any specific epistemological or metaphysical doctrine, but rather concerns the fundamental standpoint and terms of reference of philosophical enquiry. To take the transcendental turn is not to endorse any of Kant's specific teachings, but to accept that the Copernican revolution announced in the Preface of the Critique (...) of Pure Reason sets philosophy on a new footing and constitutes the proper starting point of philosophical reflection.In this volume a team of leading philosophers explore the concept of the transcendental as it developed through history, focusing on approaches to the transcendental project by Kant, Fichte, Hegel, Nietzsche, Husserl, Heidegger, Merleau-Ponty, and Bernard Williams. By giving systematic shape to historical material, the volume provides a unique resource for systematic reflection on transcendental philosophy. (shrink)

Could you survive your bodily death by uploading your mind?

This article explores the concept of non-personal immortality. Non-personal theories of immortality claim that even though there is no personal or individual survival of death, it is still possible to continue to exist in a non-personal state. The most important challenge for non-personal conceptions of immortality is solving the apparent contradiction between on the one hand accepting that individual existence ends with death and on the other hand maintaining that death nevertheless is not equal to total annihilation. I present two (...) theories of non-personal immortality found in Schopenhauer and William James and derive a set of systematic core theses from them. Finally, I discuss whether the notion of non-personal immortality is consistent, and whether a non-personal afterlife could be desirable. (shrink)

It has often been claimed, e.g. by William James or Aldous Huxley, that mystical experiences across times and cultures exhibit a striking similarity. Even though the words and images we use to describe them are different, underneath the surface we find a common experiential core. Others have rejected this claim and argued that all experiences are intrinsically shaped by the mystics’ pre-existing religious concepts. Against these constructivist objections, I defend the idea of a common core by arguing that even if (...) all experience is interpreted through concepts, there could still be a common core. Those who reject the common core thesis usually argue that no distinction between experience and interpretation can be made since all experience is per se already interpreted. The notion of an uninterpreted experience is self-defeating. Drawing on current research on nonconceptual mental content, I argue that experiences can have nonconceptual content; that interpretation must be understood as conceptualization and that conceptualization presupposes a raw mental content that is not conceptualized. This raw content is not experienced as nonconceptual. Rather, the nonconceptual, uninterpreted common core is an abstraction which shows itself only through reflection. Thus, the existence of a common core is compatible with the fact that all experiences are interpreted. (shrink)

While largely studied because of their harmful effects on human health, there is growing appreciation that bacteria are important partners for invertebrates and vertebrates, including man. Epithelia in metazoans do not only select their microbiota; a coevolved consortium of microbes enables both invertebrates and vertebrates to expand the range of diet supply, to shape the complex immune system and to control pathogenic bacteria. Microbes in zebrafish and mice regulate gut epithelial homeostasis. In a squid, microbes control the development of the (...) symbiotic light organ. These discoveries point to a key role for bacteria in any metazoan existence, and imply that beneficial bacteria‐host interactions should be considered an integral part of development and evolution. (shrink)

Introduction: This paper has two, interrelated aims. The first is to clarify Sartre's theory of intersubjectivity. Sartre's discussion of the Other has a puzzling way of going in and out of focus, seeming at one moment to provide a remarkably original solution to the problem of other minds and at the next to wholly miss the point of the skeptical challenge. The nature of his argument is equally uncertain: at some points it looks like an attempt to mount a transcendental (...) argument, a kind of Refutation of Idealism regarding the existence of others, at others, to be a defence of direct realism; yet again, it can seem to propose a dissolution of the problem closely analogous to Wittgenstein. I will argue (Section 1) that none of these provides quite the right model for understanding Sartre, which requires one to take seriously his method of resolving epistemological issues into matters of ontology. I argue further (Section 2) that Sartre's theory becomes fully coherent only if we make explicit its implicit presupposition of a conception of intersubjectivity articulated by Fichte. My second aim is to pursue the connection opened up of Sartre with German idealism. To the extent that commentators attempt to relate Sartre systematically to German idealism, it is almost always Hegel who provides the other term of comparison.1 What I try to show (Section 3) is that the usual comparison of Sartre with Hegel, which is largely negative, is distracting, and that Sartre's closer philosophical [End Page 325] relations are to Fichte and Schelling.2 This supplies, I argue, an important correction to the tendency of anglophone discussion of Sartre to isolate his claims from historical considerations, or to restrict Sartre's historical frame of reference to Hegel, Husserl and Heidegger: Sartre's philosophy, I suggest, is viewed fruitfully in the context of philosophical debates pursued in early German idealism. Sartre's ethics, I argue (Section 4), provide supporting evidence for this view. I propose tentatively in conclusion (Section 5) a corresponding view of existential phenomenology as a whole. (shrink)

I present and discuss recent work in analytic philosophy of religion on apophaticism and divine ineffability. I focus on three questions: how can we call God ineffable without contradicting ourselves? How can we refer to an ineffable God? What is the point of talking about an ineffable God?

Adrian Moore argues that Kant’s transcendental idealism is incoherent, and that its incoherence gives us an invaluable insight into the fundamental nature of metaphysics, motivating the reconception of metaphysical inquiry with which Moore concludes his story of the development of modern philosophy. My discussion has three parts. First, I focus on the treatment of Kant’s transcendental idealism in Moore’s earlier book, Points of View, and highlight ways in which Moore is, I argue, open to challenge. Second, I suggest that the (...) historical record does not bear out Moore’s criticism of Kant’s transcendental idealism. Third, I compare Moore’s response to the alleged incoherence of transcendental idealism with that of the German Romantics. (shrink)

This chapter contains sections titled: Kant's Statement of the Principle of the Primacy of Practical Reason, and its Role in Kant's Moral Theology The Primacy of Practical Reason in the Broader Sense The Primacy of Practical Reason and the Assumption of Freedom: Their Relation The Primacy of Practical Reason in Relation to the Theological Postulates Kant's Argument in “On the Primacy” Other Texts Kant's Copernicanism and the Concept of Practical Cognition in the Context of the Postulates Influence.

This paper offers a synoptic view of Kant's Critique of the Power of Judgement and its reception by the German Idealists. I begin by sketching Kant's conception of how its several parts fit together, and emphasize the way in which the specifically moral motivation of Kant's project of unification of Freedom and Nature distances it from our contemporary philosophical concerns. For the German Idealists, by contrast, the CPJ's conception of the opposition of Freedom and Nature as defining the overarching task (...) of philosophy provides a warrant and basis for bold speculative programmes. The German Idealist development therefore presupposes Kant's failure in the CPJ to resolve the problem of the relation of Freedom and Nature. What is fundamentally at issue in the argument between Kant and his successors is the question of the correct conception of philosophical systematicity and in this context I reconstruct Kant's defence of his claim to philosophical finality. (shrink)

ABSTRACTWe know from Nietzsche’s posthumously published notebooks and correspondence of his plan in 1868 to compose a doctoral dissertation in philosophy on the subject of teleology in nature and the concept of the organic, with reference to Kant. The bulk of my discussion represents an attempt to extrapolate from Nietzsche’s letters and preparatory notes the view he arrived at. Since the notes do not defend explicitly any single definitive thesis, their interpretation is unavoidably conjectural. I argue that, if Nietzsche’s remarks (...) are considered with close reference to the philosophers who at that point dominated his horizons, namely Kant, Schopenhauer, and Lange, with Goethe also playing a key role, a plausible account can be given of the broad conclusions Nietzsche reached as a result of his early engagement with the problem of teleology. This outlook maintains the necessity and distinctiveness of philosophical reflection, but takes a skeptical view of its basis. In 1868 Nietzsche had no clear idea of how to proceed from this point, but in the end I propose, as others have done, that Nietzsche’s reflections on Kant and teleology helped to lay the ground for The Birth of Tragedy. In conclusion, I hypothesize that Nietzsche’s later philosophy involves no change of metaphilosophical standpoint. (shrink)

In this paper I offer a selective, systematic rather than historical account of Merleau-Ponty’s highly complex relation to classical German philosophy, focussing on issues which bear on the question of his relation to transcendentalism and naturalism. I argue that the concerns which define his project in Phenomenology of Perception are fundamentally those of transcendental philosophy, and that Merleau-Ponty’s disagreements with Kant, and the position he arrives at in The Visible and the Invisible, are helpfully viewed in light of issues which (...) Merleau-Ponty identifies as raised by Kant’s Critique of the Power of Judgement, and Schelling’s conversion of Kantian idealism into a Real-Idealismus. Finally I address the question of whether, and on what basis, Merleau-Ponty’s claim to have surpassed systematic philosophy can be defended. (shrink)

This paper attempts in the first instance to clarify the application of the personal/sub-personal distinction to psychoanalysis and to indicate how this issue is related to that of psychoanalysis" epistemology. It is argued that psychoanalysis may be regarded either as a form of personal psychology, or as a form of jointly personal and sub-personal psychology, but not as a form of sub-personal psychology. It is further argued that psychoanalysis indicates a problem with the personal/sub-personal distinction itself as understood by Dennett (...) A revised view of the distinction, which is argued to reflect its true metaphysical significance, is proposed. (shrink)

Book description:* The only accessible and authoritative guide to the continental traditions in philosophy * 20 brand-new contributions by an outstanding international team * Valuable for anyone working on continental philosophy, European literature, the history of ideas, and cultural studies The Oxford Handbooks series is a major new initiative in academic publishing. Each volume offers an authoritative and up-to-date survey of original research in a particular subject area. Specially commissioned essays from leading figures in the discipline give critical examinations of (...) the progress and direction of debates. Oxford Handbooks provide scholars and graduate students with compelling new perspectives upon a wide range of subjects in the humanities and social sciences. The Oxford Handbook of Continental Philosophy is the definitive guide to the major themes of the continental Euopean tradition in philosophy in the nineteenth and twentieth centuries. Brian Leiter and Michael Rosen have assembled a stellar group of contributors who provide a thematic treatment of continental philosophy, treating its subject matter philosophically and not simply as a series of museum pieces from the history of ideas. The scope of the volume is broad, with discussions covering a wide range of philosophical movements including German Idealism, existentialism, phenomenology, Marxism, postmodernism, and critical theory, as well as thinkers like Hegel, Marx, Nietzsche, Freud, Heidegger, and Foucault. This Handbook will be an essential reference point for graduate students and professional academics working on continental philosophy, as well as those with an interest in European literature, the history of ideas, and cultural studies. (shrink)

This paper explains the Buddhist concept of suffering and its relation to the Christian problem of evil. Although there is no problem of evil in Buddhism, the Buddhist understanding of the origin and causes of suffering will help us to find new approaches to the problem of evil. More specifically, I argue that the concept of evil can be interpreted in terms of dukkha; that the existence of suffering or dukkha is necessarily inevitable for finite beings, given the metaphysical structure (...) of the world and ourselves; and that this reasoning can be interpreted as a defense against the problem of evil. (shrink)

This essay aims to correct a prevalent misconception about Paul Ricoeur’s hermeneutics, which understands it to support a conception of human understanding as finite as Heidegger did, but in a more “conceptuallyconservative” way. The result is that Ricoeur’s work is viewed as incapable of addressing the most pressingproblems in contemporary Continental metaphysics. In response, it is argued that Ricoeur is in fact the firstto develop an infinite hermeneutics, which departs significantly from Heideggerian finitude. This positionis demonstrated by tracing the itinerary (...) from Heidegger’s account of aletheia to Ricoeur’s account ofattestation. The conclusion, then, not only clears Ricoeur of the stated charges, but also presents a moreviable path for the future of hermeneutics. (shrink)

Sebastian Sunday Grève calls on us to decide what kind of life with machines we want.

It is well known that Sartre describes his form of existentialism as atheistic, and much of the rhetoric of Sartrean existentialism draws off the image of God's absence from the world. There are nevertheless, I argue, deep grounds for thinking that the coherence and well-groundedness of Sartre's thought requires that his phenomenological ontology take finally the form of an onto-theology: Sartre's ontology runs into difficulties concerning the origin of the for-itself and the unity of being; an onto-theology like Schelling's, which (...) avoids the ‘ontological optimism’ that Sartre objects to in Hegel, both releases Sartre's ontology from its difficulties and furthers Sartre's central philosophical purposes. (Published Online July 10 2006). (shrink)

This paper argues that even Crane’s modified account of belief doesn’t do justice to all varieties of religious belief. Particularly beliefs associated with ritual behavior don’t seem to match the criteria of Crane’s alternative account. So, the question remains whether these beliefs should still be called beliefs, or whether the standard model of belief is even more false than Crane suspects.

Sebastian Sunday-Grève and Timothy Williamson discuss the question of where philosophy starts and the idea of philosophy as a non-natural science.