The purpose of this paper is to show that there exist star-finite tree-structured sets in which the computations of parallel programs can be faithfully embedded, and that the theory of star-finite sets and relations therefore provides a new tool for the analysis of non-deterministic computations.

In der vorliegenden Studie Berichten die Verfasser über die Lage der Wissenschaftstheorie in Ungarn. Nach einem kurzen historischen Überblick sichten sie die heutigen Forschungsrichtungen der ungarischen Wissenschaftstheorie. In diesem Zusammenhang befassen sie sich mit wissenschaftsphilosophischen Forschungen überhaupt, des weiteren mit den Studien zur Analyse von bürgerlichen wissenschaftstheoretischen Richtungen und mit den wissenschaftstheoretischen Fragen neuer Disziplinen und Forschungszweige. Mit besonderer Aufmerksamkeit verfolgen die Autoren die Aktivitäten zur Untersuchung der aufkommenden wissenschaftlich-technischen Revolution und der einschlägigen Forschungen. Ausführlich sind auch die Forschungsarbeiten in (...) den Einzelbereichen der Wissenschaftslehre: Wissenschaftslogik,- Methodologie,- Soziologie usw. dargestellt. Des weiteren erörtert die Abhandlung auch die Zusammenhänge, die sich zwischen den wissenschaftlichen Forschungen und anderen gesellschaftlichen Aktivitäten - Politik, Technik, Künste, Informationswesen, Pädagogik usw. - ergeben. Abschließend informiert die Studie über die Forschungsstellen, die sich in Ungarn mit wissenschaftstheoretischen Arbeiten befassen. (shrink)

Lemmon argues that dilemmas occur between classes of 'oughts;' duties, obligations, and moral principles. He claims that there are not conflicts within each class, presumably because he is a utilitarian, and thinks that moral principles will always be univocal.

In this paper we examine C. I. Lewis's view on the roleof coherence – what he calls ''congruence'' – in thejustification of beliefs based on memory ortestimony. Lewis has two main theses on the subject. His negativethesis states that coherence of independent items ofevidence has no impact on the probability of a conclusionunless each item has some credibility of its own. Thepositive thesis says, roughly speaking, that coherenceof independently obtained items of evidence – such asconverging memories or testimonies – raises (...) the probabilityof a conclusion to the extent sufficient for epistemicjustification, or, to use Lewis's expression, ''rationaland practical reliance''.It turns out that, while thenegative thesis is essentially correct, astrong positive connection between congruence andprobability – a connection of the kind Lewis ultimatelyneeds in his validation of memory – is contingent on thePrinciple of Indifference. In the final section we assess therepercussions of the latter fact for Lewis's theory in particularand for coherence justification in general. (shrink)

This paper assesses several prominent recent attacks on the view that epistemic justification is conceptually prior to knowledge. I argue that this view—call it the Received View (RV)—emerges from these attacks unscathed. I start with Timothy Williamson’s two strongest arguments for the claim that all evidence is knowledge (E>K), which impugns RV when combined with the claim that justification depends on evidence. One of Williamson’s arguments assumes a false epistemic closure principle; the other misses some alternative (to E>K) explanations of (...) a putative fact about the evidence a particular subject has. Next, I neutralize each of Jonathan Sutton’s three recent arguments to the conclusion that any justified belief constitutes knowledge. Finally, I consider a recent analysis of justification due to Alexander Bird, according to which justified belief is possible knowledge. I argue that Bird’s analysis delivers neither a sufficient nor (more importantly) a necessary condition for justification. [Word count: 149]. (shrink)

Causal closure arguments against interactionist dualism are currently popular amongst physicalists. Such an argument appeals to some principles of the causal closure of the physical, together with certain other premises, to conclude that at least some mental events are identical with physical events. However, it is crucial to the success of any such argument that the physical causal closure principle to which it appeals is neither too strong nor too weak by certain standards. In this paper, it is argued that (...) various forms of naturalistic dualism, of an emergentist character, are consistent with the strongest physical causal closure principles that can plausibly be advocated. (shrink)

This article develops a view of shape representation both in visual experience and in subpersonal visual processing. The view is that, in both cases, shape is represented in a ‘layered’ manner: an object is represented as having multiple shape properties, and these properties have varying degrees of abstraction. I argue that this view is supported both by the facts about visual phenomenology and by a large collection of evidence in perceptual psychology. Such evidence is provided by studies of shape discriminability, (...) apparent motion, multiple-object tracking, and structure-from-motion. Recent neuroscientific work has also corroborated this psychophysical evidence. Finally, I draw out implications of the layered view for processes of concept acquisition. 1 Introduction2 Metric Properties andShape Properties3 Metric Views4 Against Metric Views of Visual Shape Experience5 The Visual System Uses Abstract Shape Properties6 Against Metric Views of Visual Shape Representation7 Neural Underpinnings of Abstract Shape Perception8 Implications. (shrink)

Towards the end of Chapter XXI of Book II of the Essay Concerning Human Understanding, Locke remarks, with all the appearance of sincerity and genuine modesty, that.

Many have held that when a person visually attends to an object, her visual system deploys a representation that designates the object. Call the referential link between such representations and the objects they designate attentive visual reference. In this article I offer an account of attentive visual reference. I argue that the object representations deployed in visual attention—which I call attentive visual object representations —refer directly, and are akin to indexicals. Then I turn to the issue of how the reference (...) of an AVOR is determined relative to a context. After raising problems for existing accounts, I propose a mechanism of reference determination that is both causal and descriptive: For an AVOR to refer to a particular object, the object must appropriately cause the deployment of the AVOR, and the AVOR must be associated with descriptive information about some of the object's geometrical and mereological properties. (shrink)

The dual concepts of mindfulness and mindlessness are described. Mindfulness is a state of conscious awareness in which the individual is implicitly aware of the context and content of information. It is a state of openness to novelty in which the individual actively constructs categories and distinctions. In contrast, mindlessness is a state of mind characterized by an over reliance on categories and distinctions drawn in the past and in which the individual is context-dependent and, as such, is oblivious to (...) novel aspects of the situation. Mindlessness is compared to more familiar concepts such as habit, functional fixedness, overlearning, and automatic processing. Like mindlessness, these concepts concern rigid invariant behavior that occurs with little or no conscious awareness. The primary difference is that mindlessness may result from a single exposure to information. When information is given in absolute language, is given by an authority, or initially appears irrelevant, there is little manifest reason to critically examine the information and thereby recognize the ways it may be context-dependent. Instead, the individual mindlessly forms a cognitive commitment to the information and freezes its potential meaning. Alternative meanings or uses of the information become unavailable for active cognitive use. Automatic vs controlled processing, while seemingly most similar to mindlessness/mindfulness, are orthogonal to them. One can process information in a controlled but mindless manner, or automatic but mindful. Related concepts like scripts, set, expectancy, labels, and roles direct behavior, but these too may be enacted mindlessly or mindfully. The major consequences of mindlessness/mindfulness are discussed with respect to their relevance for overt behavior , memory, and health. Finally, the relationship between traditional notions of consciousness and mindfulness is briefly examined. (shrink)

This chapter offers a new criticism of the Mind argument that is both decisive and instructive. It introduces a plausible principle (γ) that places a requirement on one’s having a choice about an event whose causal history includes only other events. Depending on γ’s truth-value, the Mind argument fails in such a way that one or the other of the two main species of libertarianism is the best approach to the metaphysics of freedom. Libertarians argue the compatibility of freedom and (...) indeterminism, and their biggest obstacle is the Mind argument that argues an incompatibility between the two. The chapter aims to build a case for the truth of γ, and so for nonreductive libertarianism. This is achieved by defending it from the best objections that have been brought to light, thereby emphasizing γ’s prima facie plausibility. (shrink)

A self or person does not appear to be identifiable with his or her organic body, nor with any part of it, such as the brain; and yet selves seem to be agents, capable of bringing about physical events as causal consequences of certain of their conscious mental states. How is this possible in a universe in which, it appears, every physical event has a sufficient cause which is wholly physical? The answer is that this is possible if a certain (...) kind of naturalistic dualism is true, according to which the conscious mental states of selves, although not identifiable with physical states of their brains, are emergent effects of prior physical causes. Moreover, mental causation on this model promises to explain certain aspects of physical behaviour which may appear arbitrary and coincidental from a purely physical point of view. (shrink)

ABSTRACTIn a recent article in this journal, Joshua Shepherd presents and rejects a new argument for the sceptical conclusion that everyday decisions aren't intentional actions. After relating his focal argument to a different argument for the same conclusion that is presented and rejected by Alfred Mele, I defend these arguments from extant criticisms, and develop new objections that shed light on the intentionality of typical decisions.

Argues that there can be interaction without breaking physical laws: e.g. by basic psychic forces, or by varying physical constants, or especially by arranging fractal trees of physical causation leading to behavior.

Commonsense metaphysics populates the world with an enormous variety of macroscopic objects, conceived as being capable of persisting through time and undergoing various changes in their properties and relations to one another. Many of these objects fall under J. L. Austin’s memorable description, “moderate-sized specimens of dry goods.” More broadly, they include, for instance, all of those old favourites of philosophers too idle to think of more interesting examples—tables, books, rocks, apples, cats, and statues. Some of them are natural objects, (...) such as rocks, apples, and cats. Some are artefacts, such as tables, books, and statues. Some are living things, such as apples and cats. Some are inanimate things, such as tables, books, rocks, and statues. To such a list we could add much larger natural objects, such as planets and stars, as well as much smaller ones barely visible to the naked eye, such as mites and pollen grains. Telescopes and microscopes enable us to extend the scale further in both directions, to include such things as galaxies and microbes. To call into question the existence of all or any of these things would appear to be an extravagance of the sort that only a philosopher could indulge. Until fairly recently in the history of philosophy, however, the only way in which their existence would have been called into question was in the context of the debate between realism and idealism. Idealism calls their existence into question by questioning the existence of an “external world” as such, proposing instead that only minds and their experiences exist. What is much more recent is the suggestion that, although there is an external world of entities existing in space and time, it is not in fact populated by most, or perhaps even by any, of the objects recognized by common sense. Instead, it is suggested, the world is populated by submicroscopic entities of a highly esoteric kind best understood by theoretical physicists—entities which may not even qualify as “objects” in anything like the familiar sense because, quite possibly, they should not be thought of as having precise spatiotemporal locations or as persisting over time and through processes of qualitative change. Let us call these putative entities ‘atoms’, without prejudice as to whether they conform to the descriptions currently favoured by physicists in speaking of what they call ‘atoms’. In other words, let us use ‘atom’ as a place-holder for whatever kind or kinds of entities an ideal or completed physics would postulate as the “ultimate” constituents, as opposed to infinitely descending levels of ever more fine-grained physical structure, but let us set aside dispute over these alternatives for the time being, if only because we have little idea as to how to settle it. (shrink)

This is an ideal introduction to moral philosophy for beginning students and general readers, dealing with the philosophical theories which often lie behind everyday opinions and inviting the reader to examine those theories thoroughly. Using numerous examples and diagrams, Professor Bond guides the reader through the key problems of theoretical ethics seeking to outline a substantial view of morality in universal practical reason, he concludes in an attempt to show that a viable universal morality can only relate to the thriving, (...) flourishing or well-being of individuals in a community. (shrink)

This paper challenges David Chalmers' proposed division of the problems of consciousness into the `easy' ones and the `hard' one, the former allegedly being susceptible to explanation in terms of computational or neural mechanisms and the latter supposedly turning on the fact that experiential `qualia' resist any sort of functional definition. Such a division, it is argued, rests upon a misrepresention of the nature of human cognition and experience and their intimate interrelationship, thereby neglecting a vitally important insight of Kant. (...) From a Kantian perspective, our capacity for conceptual thought is so inextricably bound up with our capacity for phenomenal consciousness that it is an illusion to imagine that there are any `easy' problems of consciousness, resolvable within the computational or neural paradigms. (shrink)

A highly contentious issue in recent philosophy of logic has been the question of whether there can be contingently true identity statements. In this paper I want to investigate a possible loop-hole in the standard argument of the necessitarians (i.e., those who maintain that any true identity statement is necessarily true).

Eric T. Olson has argued that those who hold that two material objects can exactly coincide at a moment of time, with one of these objects constituting the other, face an insuperable difficulty in accounting for the alleged differences between the objects, such as their being of different kinds and possessing different persistence-conditions. The differences, he suggests, are inexplicable, given that the objects in question are composed of the same particles related in precisely the same way. In response, I show (...) that the differences are not at all inexplicable once it is recognized that the conditions for a persisting object to be composed by certain particles at a moment of time must involve facts concerning other moments of time, and that the relevant facts are different for persisting objects of different kinds. Philosophers who neglect this sort of constraint on composition principles may be said to be victims of the 'cinematographic fallacy'. (shrink)

How could the self be a substance? There are various ways in which it could be, some familiar from the history of philosophy. I shall be rejecting these more familiar substantivalist approaches, but also the non-substantival theories traditionally opposed to them. I believe that the self is indeed a substance—in fact, that it is a simple or noncomposite substance—and, perhaps more remarkably still, that selves are, in a sense, self-creating substances. Of course, if one thinks of the notion of substance (...) as an outmoded relic of prescientific metaphysics—as the notion of some kind of basic and perhaps ineffablestuff—then the suggestion that the self (or indeed anything) is a substance may appear derisory. Even what we ordinarilycall‘stuffs’—gold and water and butter and the like—are, it seems, more properly conceived of as aggregates of molecules or atoms, while the latter are not appropriately to be thought of as being ‘made’ of any kind of ‘stuff’ at all. But this only goes to show that we need to think in terms of a more sophisticated notion of substance—one which may ultimately be traced back to Aristotle's conception of a ‘primary substance’ in theCategories, and whose heir in modern times is W. E. Johnson's notion of the ‘continuant’. It is the notion, that is, of a concrete individual capable of persisting identically through qualitative change, a subject of alterable predicates that is not itself predicable of any further subject. (shrink)

Lorazepam has been repeatedly shown to induce memory impairments. The effects of this benzodiazepine on the processes involved in the strategic regulation of memory accuracy have not as yet been explored. An experimental procedure that delineates the role of monitoring and control processes was used. Fifteen lorazepam and 15 placebo subjects were examined using a semantic memory task that combined both a forced- and a free-report option and a no-incentive and an incentive condition. Memory accuracy was lower in the lorazepam (...) than in the placebo group. Lorazepam impaired control sensitivity (the extent to which volunteering of answers is affected by the confidence judgments). While the absolute aspect of monitoring was impaired (calibration scores), both the discriminative aspect (the ability to distinguish between correct and incorrect answers) and the response criterion setting (the confidence threshold set for volunteering a report) were spared. The pharmacological dissociation between monitoring effectiveness and control sensitivity indicates that these two components involve distinct processes. (shrink)

My aim in this paper is to show how confusion and unclarity about reasons for action has led to serious error in ethics and the philosophy of action, and to try to set matters right. In Part I I set out what reasons for doing are, and try to make clear the distinction between reasons as justifying actions and reasons as motivating them. In Part II I try to show how, even in the ideal situation of successful and correct deliberation, (...) a justifying reason is never identical with a motivating one, since they are two quite different sorts of thing. However a motivating reason and what one takes to be a justifying reason may be the same. In Part Ill I show how failing to make these distinctions leads to paradoxes and absurdities in the philosophy of action. It emerges that a related distinction must be made between wanting, valuing, and being valuable. (shrink)

In this paper I attempt to show, by considering a number of sources, including Wittgenstein, Sartre, Thomas Nagel and Spinoza, but also adding something crucial of my own, that it is impossible to construe the subject of experience as an object among other objects in the world. My own added argument is the following. The subject of experience cannot move in time along with material events and processes or it could not be aware of the passage of time, hence neither (...) of change nor of motion. The subject cannot therefore be identified with any neural process, function, or location since whatever goes on in the CNS is necessarily objective and part of the temporal flux. However this does not imply any form of dualism for experiences exist only for the subject whose experiences they are and hence they have no objective reality. (shrink)