According to current hierarchies of evidence for EBM, evidence of correlation is always more important than evidence of mechanisms when evaluating and establishing causal claims. We argue that evidence of mechanisms needs to be treated alongside evidence of correlation. This is for three reasons. First, correlation is always a fallible indicator of causation, subject in particular to the problem of confounding; evidence of mechanisms can in some cases be more important than evidence of correlation when assessing a causal claim. Second, (...) evidence of mechanisms is often required in order to obtain evidence of correlation. Third, evidence of mechanisms is often required in order to generalise and apply causal claims. While the EBM movement has been enormously successful in making explicit and critically examining one aspect of our evidential practice, i.e., evidence of correlation, we wish to extend this line of work to make explicit and critically examine a second aspect of our evidential practices: evidence of mechanisms. (shrink)

For the purposes of this monograph, "by a degree" is meant a degree of recursive unsolvability. A degree [script bold]m is said to be minimal if 0 is the unique degree less than [script bold]m. Each of the six chapters of this self-contained monograph is devoted to the proof of an existence theorem for minimal degrees.

Evidence-based medicine (EBM) makes use of explicit procedures for grading evidence for causal claims. Normally, these procedures categorise evidence of correlation produced by statistical trials as better evidence for a causal claim than evidence of mechanisms produced by other methods. We argue, in contrast, that evidence of mechanisms needs to be viewed as complementary to, rather than inferior to, evidence of correlation. In this paper we first set out the case for treating evidence of mechanisms alongside evidence of correlation in (...) explicit protocols for evaluating evidence. Next we provide case studies which exemplify the ways in which evidence of mechanisms complements evidence of correlation in practice. Finally, we put forward some general considerations as to how the two sorts of evidence can be more closely integrated by EBM. (shrink)

When I take off my glasses, the world looks blurred. When I put them back on, it looks sharpedged. I do not think that the world really was blurred; I know that what changed was my relation to the distant physical objects ahead, not those objects themselves. I am more inclined to believe that the world really is and was sharp-edged. Is that belief any more reasonable than the belief that the world really is and was blurred? I see more (...) accurately with my glasses on than off, so visual appearances when they are on have some cognitive priority over visual appearances when they are off. If I must choose which kind of visual appearance to take at face value, I will choose the sharp-edged look. But what should I think when I see a mist, which looks very blurred however well I am seeing? Indeed, why choose to take any of the looks at face value? Why not regard all the choices as illegitimate projections of ways of seeing the world onto the world itself? (shrink)

This volume is not restricted to papers presented at the 1988 Colloquium, but instead aims to provide the reader with a (relatively) coherent reading on Algebraic Logic, with an emphasis on current research. To help the non-specialist reader, the book contains an introduction to cylindric and relation algebras by Roger D. Maddux and an introduction to Boolean Algebras by Bjarni Joacute;nsson.

The concept of metaphor as primarily a vehicle for conveying ideas, even if unusual ones, seems to me as wrong as the parent idea that a metaphor has a special meaning. I agree with the view that metaphors cannot be paraphrased, but I think this is not because metaphors say something too novel for literal expression but because there is nothing there to paraphrase. Paraphrase, whether possible or not, inappropriate to what is said: we try, in paraphrase, to say it (...) another way. But if I am right, a metaphor doesn't say anything beyond its literal meaning . This is not, of course, to deny that a metaphor has a point, nor that that point can be brought out by using further words. . . . My disagreement is with the explanation of how metaphor works its wonders. To anticipate: I depend on the distinction between what words mean and what they are used to do. I think metaphor belongs exclusively to the domain of use. It is something brought off by the imaginative employment of words and sentences and depends entirely on the ordinary meanings of those words and hence on the ordinary meanings of the sentences they comprise. Donald Davidson is University Professor of philosophy at the University of Chicago. He is the author of many important essays, including "Actions, Reasons and Causes," "Causal Relations," and "Truth and Meaning," coauthor of Decision-Making: An Experimental Approach, and coeditor of Words and Objections, Semantics of Natural Language, and The Logic of Grammar. (shrink)

'Leading economists presenting fundamentally important issues in economic theory' is the theme of the Nancy Schwartz lectures series held annually at the J. L. Kellogg Graduate School of Management of Northwestern University. Reporting on lectures delivered in the years 1983 through 1997, this collection of essays discusses economic behavior at the individual and group level and the implications to the performance of economic systems. Using non-technical language, the speakers present theoretical, experimental, and empirical analysis of decision making under uncertainty and (...) under full and bounded rationality, the influence of economic incentives and habits, and the effects of learning and evolution on dynamic choice. Perfect competition, economic development, social insurance and social mobility, and negotiation and economic survival, are major economic subjects analyzed through our understanding of economic behavior. (shrink)

What is the relation between a reason and an action when the reason explains the action by giving the agent's reason for doing what he did? We may call such explanations rationalizations, and say that the reason rationalizes the action. In this paper I want to defend the ancient - and common-sense - position that rationalization is a species of ordinary causal explanation. The defense no doubt requires some redeployment, but not more or less complete abandonment of the position, as (...) urged by many recent writers. (shrink)

This chapter presents an overview of the major interpretations of probability followed by an outline of the objective Bayesian interpretation and a discussion of the key challenges it faces. I discuss the ramifications of interpretations of probability and objective Bayesianism for the philosophy of mathematics in general.

There is more than one way to say that composition is identity. Yi has distinguished the Weak Composition thesis from the Strong Composition thesis and attributed the former to David Lewis while noting that Lewis associates something like the latter with me. Weak Composition is the thesis that the relation between the parts collectively and their whole is closely analogous to identity. Strong Composition is the thesis that the relation between the parts collectively and their whole is identity. Yi is (...) right that Strong Composition does not fully reflect my view. We must recognize further what, borrowing Lewis's characterization, could be called the "stronger, and stranger" Composition thesis, or what I'll call the Stronger Composition thesis for short. On Strong Composition, it is only collectively that the parts are identical with the whole. On Stronger Composition, they are individually identical with it as well. I will explain and motivate this thesis. (shrink)

How is it possible for David Hume to be both withering skeptic and constructive theorist? I recommend an answer like the Pyrrhonian answer to the question how it is possible to suspend all judgment yet engage in active daily life. Sextus Empiricus distinguishes two kinds of assent: one suspended across the board and one involved with daily living. The first is an act of will based on appreciation of reasons; the second is a causal effect of appearances. Hume makes the (...) same distinction, only he extends the sort of assent involved in daily life to theoretical matters as well. He is a skeptic both in finding no reason to grant the first sort of assent and in being subject to the second. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reflections on Beardsley's AestheticsProblems in the Philosophy of CriticismDonald Crawford (bio)Monroe Beardsley's Aesthetics was published the year I was a junior philosophy major at the University of California, Berkeley, and by the end of that academic year, I had completed semester courses in the history of ancient as well as modern philosophy, logic, ethics, and the philosophy of religion. The requirements remaining for me in philosophy in my senior (...) year were a course in either epistemology or metaphysics, plus five elective philosophy courses. I had fairly developed interests in literature, especially poetry, classical music, film, and the visual arts, so it seemed natural for me to select a course in aesthetics as one of my remaining electives. Nonetheless, I had no idea what aesthetics was. When I looked up the word in the dictionary, I found the following definition: "The branch of philosophy dealing with beauty or the beautiful, especially in the fine arts." Even today, the Berkeley philosophy course catalog entry for aesthetics simply says, as it did then, "Aesthetics: Visual arts/literature and music. Form, expression, representation, style; interpretation and evaluation."Interpretation and evaluation sounded worth pursuing. At that time I had no doubt that almost any music by Bach was better than that by Offenbach, that Van Gogh's Starry Night was in a different class than Norman Rockwell's covers for the Saturday Evening Post, or that Bergman's The Seventh Seal (1957) was a far better film than Attack of the Crab Monsters of the same year. And I was fully convinced that some poems lent themselves to more interesting and profound readings—that is, interpretations—than others and therefore were better poems. So a course that dealt with the interpretation and evaluation of the visual arts, literature, and music was enticing. The class lectures were rather dull, however, and I began to have regrets for enrolling. Besides, the required text was brand new and had several drawbacks: there were no used copies available so it was expensive ($7.50!), and its 591 pages were bound in hardback and heavy. [End Page 19]Yes, the text was Beardsley's Aesthetics, and my now well-worn copy is complete with my original revealing and indelible underlines that remind me of my naiveté. I recall being immediately struck by the book's epigraph—a quotation from David Hume: "I am uneasy to think I approve of one object, and disapprove of another; call one thing beautiful, and another deform'd; decide concerning truth and falsehood, reason and folly, without knowing upon what principles I proceed." This encouraged me to think that this book and course would teach me the principles that underlay my unreasoned critical comparative evaluations of poems, films, and other works of art. Was this false optimism? After glancing at the table of contents, I quickly turned to chapter 10, "Critical Evaluation," where I read on page 454: "The problems to which we now come have been put off as long as possible in the hope that a circumspect approach would make them more vulnerable." I wasn't quite sure what that meant ("vulnerable" to what?), but it seemed to imply that it was necessary to start at the beginning of the book.1 So I did just that. To my delight, almost immediately, on page 3, Beardsley provided his definition of "aesthetics," saying: "[A]esthetics consists of those principles that are required for clarifying and confirming critical statements. It can be thought of, then, as the philosophy of criticism, or metacriticism" (3-4; emphasis in the original). Unless by "critical statement" Beardsley meant judgments of beauty, this didn't really correspond with either Webster's definition or the course description of aesthetics. Beardsley's concept of a critical statement was much broader than that in common use today, and it reflected the attitude of the founders of the American Society for Aesthetics, who named their journal the Journal of Aesthetics and Art Criticism (JAAC). Beardsley said he would be "using the term 'critical statement,' very broadly, to refer to any statement about a work of art" (3) and that a critical statement "need not be a value judgment at... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Journal of Aesthetic Education 40.4 (2006) 89-103 MuseSearchJournalsThis JournalContents[Access article in PDF]Philosophical AestheticsDonald Phillip VereneIs there an aesthetics of philosophy? Does philosophical discourse have a foundation in sense and sensibility? If the answer to these questions is affirmative and there is in some sense a philosophical aesthetics, what conclusions might be drawn for philosophical education?Put another way: Does philosophy require the power of the imagination and the product (...) of this power-image? Or is philosophy the product of the pure concept, the rational idea? Does philosophical reason rest upon a logic that resides in thought alone that is expressed essentially in principles and arguments disconnected from images and sentiment?The Philosophical ImaginaryThe French philosopher Michèle Le Doeuff says:Whether one looks for a characterization of philosophical discourse to Plato, to Hegel or to Bréhier, one always meets with a reference to the rational, the concept, the argued, the logical, the abstract. Even when a certain coyness leads some authorities to pretend that they do not know what philosophy is, no agnosticism remains about what philosophy is not. Philosophy is not a story, not a pictorial description, not a work of pure literature. Philosophical discourse is inscribed and declares its status as philosophy through a break with myth, fable, the poetic, the domain of the image. 1Le Doeuff continues:If, however, one goes looking for this philosophy in the texts which are meant to embody it, the least that can be said is that it is not to be found there in a pure state. We shall also find statues that breathe the scent of roses, comedies, tragedies, architects, foundations, dwellings, [End Page 89] doors and windows, sand, navigators, various musical instruments, islands, clocks, horses, donkeys and even a lion, representatives of every craft and trade, scenes of sea and storm, forests and trees: in short, a whole pictorial world sufficient to decorate even the dryest "History of Philosophy." 2Le Doeuff points to Hegel's work as an example of the claim that the sole form of philosophy is thought. Yet the works of Hegel, like those of Plato, are full of images. Plato and Hegel are masters of metaphor. One can say of them what Aristotle says in the Poetics, that "the greatest thing by far is to be a master of metaphor. It is the one thing that cannot be learnt from others and it is a sign of genius. For the right use of metaphor requires an eye for similarities in dissimilars." 3 Despite his mastery of metaphor, in the Republic Plato uses his doctrine of eidos to criticize the power of eikon to present truth. Hegel, in the Phenomenology, uses his doctrine of the Begriff to claim that the Bild cannot produce the science of the absolute. Plato and Hegel say one thing in their texts, but in the texts themselves they do another. Plato's dialogues are filled with metaphors and likely stories from the Ring of Gyges to the metaphor of the Sun to the tale of Atlantis, as are Hegel's works, from the "night in which all cows are black" to the phrenological skull to the owl of Minerva that flies only at the falling of dusk.How are we to comprehend the extremes of philosophical doctrine on the one hand and the discourse that expresses it on the other? Is the discourse simply the outer shell of the doctrine, inessential to its truth, or does the doctrine itself require for its truth all that is needed for its proper statement?I wish to seek the answer to this by connecting Plato to Hegel, using Vico as an intermediary, in particular Vico's conception of la sapienza poetica (poetic wisdom) and his conception of the universale fantastico (imaginative universal). My claim is that philosophical discourse, as well as philosophy itself, depends upon an aesthetic that cannot be overcome by reason, that there is a philosophical imaginary that necessarily accompanies philosophical rationality. The concept, the idea, always has a shadow, a doppelgänger through which... (shrink)

I argue that an individual has aspects numerically identical with it and each other that nonetheless qualitatively differ from it and each other. This discernibility of identicals does not violate Leibniz's Law, however, which concerns only individuals and is silent about their aspects. They are not in its domain of quantification. To argue that there are aspects I will appeal to the internal conflicts of conscious beings. I do not mean to imply that aspects are confined to such cases, but (...) the best way to start is to recognize them experientially. We can feel the conflicts within ourselves. In doing so we can feel some of our aspects. I will try to enhance our understanding of the concept of aspect by listing and formalizing some principles for its use. After that I will argue that all sorts of individual things have aspects, not just people who are conflicted. (shrink)

The concept of metaphor as primarily a vehicle for conveying ideas, even if unusual ones, seems to me as wrong as the parent idea that a metaphor has a special meaning. I agree with the view that metaphors cannot be paraphrased, but I think this is not because metaphors say something too novel for literal expression but because there is nothing there to paraphrase. Paraphrase, whether possible or not, inappropriate to what is said: we try, in paraphrase, to say it (...) another way. But if I am right, a metaphor doesn't say anything beyond its literal meaning. This is not, of course, to deny that a metaphor has a point, nor that that point can be brought out by using further words.... My disagreement is with the explanation of how metaphor works its wonders. To anticipate: I depend on the distinction between what words mean and what they are used to do. I think metaphor belongs exclusively to the domain of use. It is something brought off by the imaginative employment of words and sentences and depends entirely on the ordinary meanings of those words and hence on the ordinary meanings of the sentences they comprise. Donald Davidson is University Professor of philosophy at the University of Chicago. He is the author of many important essays, including "Actions, Reasons and Causes," "Causal Relations," and "Truth and Meaning," coauthor of Decision-Making: An Experimental Approach, and coeditor of Words and Objections, Semantics of Natural Language, and The Logic of Grammar. (shrink)

Acts of violence and murder have historically proved difficult to accommodate in standard accounts of the formula of universal law (FUL) version of Kant’s Categorical Imperative (CI). In “Murder and Mayhem,” Barbara Herman offers a distinctive account of the status of these acts that is intended to be appropriately didactic in comparison to accounts like the practical contradiction model. I argue that while Herman’s account is a promising one, the distinction she makes between coercive and non-coercive violence and her response (...) to concerns with the classification of the latter as imperfect duties raise significant questions about the status of some duties. I suggest that we look, instead, to Kant’s treatment of suicide in The Metaphysics of Morals for an account of norms of non-violence and, in particular, to the connection between this duty and concerns with inner freedom and moral health. I argue that we can use this account to inform our general understanding of duties prohibiting killing and violence, and that the resulting account is a promising one. (shrink)

Back to the Concrete: A Pragmatist Response to Oppression Pragmatism is a vital tool for society today, both because it addresses our more pressing social problems and because it advances beyond other available solutions. As a good deal of recent European philosophy has shown, as in the cases of Adorno and Agamben, for example, our social life is mediated by abstractions that oppress us. With its focus on the immediacy of experience, pragmatism enables us to overcome these abstractions and return (...) to concrete life in a liberating way. I argue against Agamben, however, that the return to concrete life amounts to anarchism. I show that it leads to liberalism instead, along the lines laid out by Dewey in Liberalism and Social Action, in which freed individuality is compatible with the exercise of social intelligence and planning. (shrink)

Davidson attacks the intelligibility of conceptual relativism, i.e. of truth relative to a conceptual scheme. He defines the notion of a conceptual scheme as something ordering, organizing, and rendering intelligible empirical content, and calls the position that employs both notions scheme-content dualism. He argues that such dualism is untenable since: not only can we not parcel out empirical content sentence per sentence but also the notion of uninterpreted content to which several schemes are relative, and the related notion of a (...) theory ”fitting the evidence’, can be shown to lack intelligibility too. Davidson argues further that belief in incommensurable schemes or non-intertranslatable languages is possible only on violating a correct understanding of interpretability : if we succeed in interpreting someone else then we have shown there is no need to speak of two conceptual schemes, while if we fail ”there is no ground for speaking of two.’. (shrink)

Hume's Treatise arguments concerning space, time, and geometry, especially ones involving his denial of infinite divisibility; have suffered harsh criticism. I show that in the section "Of the ideas of space and time," Hume gives important characterizations of his skeptical approach, in some respects Pyrrhonian, that will be developed in the rest of the Treatise. When that approach is better understood, the force of Hume's arguments can be appreciated, and the influential criticisms of them can be seen to miss the (...) mark. (shrink)

Contemporary philosophers interested in value theory appear to be largely concerned with questions of the following sort:What is value?What is the meaning of the word ‘good’?Does the attribution of value to an object have a cognitive, or merely an emotive, significance?The first question is metaphysical; to ask it is analogous to asking in physics:What is matter?What is electricity?The others are generally treated as semantical questions; to ask them is analogous to asking in statistics:What is the meaning of the word ‘probable’?Does (...) an attribution of probability express an objective fact, or merely a subjective attitude? (shrink)

Hume’s critique of traditional abstraction entails a result that undercuts his account of the idea of identity. To save his account of identity, Hume would have to accept abstraction as well. What links these two discussions is (1) Hume’s widely shared assumption that traditional abstraction is separating in the mind what are inseparable in reality, (2) his principle that what are different are mentally separable, and (3) his principle that we cannot conceive of the impossible. Given these, it will turn (...) out that abstraction is mentally separating something from itself, which will entail that abstraction is conceiving of something as distinct from itself. But it is impossible for something to be distinct from itself, and so it is inconceivable. Therefore abstraction is impossible. Yet consider Hume’s account of the idea of identity. On that account, to conceive of an identity is to conceive of something as one single thing viewed one way and as two distinct things viewed another. How we can take these opposing views of the same thing is a problem that I’ve termed Hume’s Difficulty concerning Identity. It will turn out that we can take the opposing views only if we can conceive of the single thing viewed one way as somehow distinct from itself when viewed the other way. That is, we must be able to conceive of something as distinct from itself. However, if we cannot conceive of something as distinct from itself when abstracting, then we cannot do it when conceiving of an identity. So traditional abstraction and Hume’s account of the idea of identity stand or fall together. (shrink)

There is a familiar problem in moral theories that recognize positive obligations to help others related to the practical room these obligations leave for ordinary life, and the risk that open-ended obligations to help others will consume our lives and resources. Responding to this problem, Kantians have tended to emphasize the idea of limits on positive obligations but are typically unsatisfactorily vague about the nature and extent of these limits. I argue here that aspects of Kant’s discussion of duties of (...) virtue owed to ourselves suggest a useful metric we can use in discussing these limits and that generalizing this account and combining it with elements of Barbara Herman’s view, offers us an attractive model of moral deliberation with the resources we need to engage the critic’s challenge properly. (shrink)

Confucius gave counsel that is notoriously hard to follow: "What you do not wish for yourself, do not impose on others" (Huang 1997: 15.24). People tend to be concerned with themselves and to be indifferent to most others. We are distinct from others so our self-concern does not include them, or so it seems. Were we to realize this distinctness is merely apparent--that our true self includes others--Confucius's counsel would be easier to follow. Concern for our true self would extend (...) concern beyond the narrow selves we appear to be. The neo-Confucians held just such a view. They espoused an identity with the universe and everything in it, arguing that this identity explains a natural concern for everyone and everything, not just for our narrow selves. However, many things in the universe differ from each other, that is, some have qualities others lack. If they are all one and the same thing then that one thing differs from itself. I will suggest that the objection can be answered with some metaphysical innovation. I will address the objection by sketching a theory--call it the theory of aspects--that explains how numerically identical things can differ qualitatively. (shrink)

A concept of informational equivalence between relations is explicated to generalize some suggestions by Geach. It is shown that two relations are informationally equivalent if and only if each can be defined in terms of the other without the use of quantifiers. It is shown that there is a general method for listing the ./-place relations informationally equivalent to an arbitrary given /-place relation if and only if i (...) the invariants of the group of invertible quantifier-free definitions, for / =j. Quantifier-free definition is contrasted with general first-order definition by means of an example of two first-order interdefinable relations which are not interdefined by any pair of mutually inverse first-order definitions. (shrink)