bluuebunny/crossref_metadata_2025 huggingface dataset:
Computable Chaos
Authors: Winnie John A.
Published: November 2002

Some irrational numbers are “random” in a sense which implies that no algorithm can compute their decimal expansions to an arbitrarily high degree of accuracy. This feature of (most) irrational numbers has been claimed to be at the heart of the deterministic, but chaotic, behavior exhibited by many nonlinear dynamical systems. In this paper, a number of now classical chaotic systems are shown to remain chaotic when their domains are restricted to the computable real numbers, providing counterexamples to the above claim. More fundamentally, the randomness view of chaos is shown to be based upon a confusion between a chaotic function on a phase space and its numerical representation in R”.
A Simple Theory of Evolution by Natural Selection
Authors: Brandon Robert N.
Published: November 2002

Kary (1990) defends the view that evolution by natural selection can be adequately explained in terms of a theory incorporating only a single level of selection. Here I point out some of the inherent inadequacies of such a theory.
Causation, Robustness, and EPR
Authors: Healey Richard A.
Published: November 2002

In his recent work, Michael Redhead (1986, 1987, 1989, 1990) has introduced a condition he calls robustness which, he argues, a relation must satisfy in order to be causal. He has used this condition to argue further that EPR-type correlations are neither the result of a direct causal connection between the correlated events, nor the result of a common cause associated with the source of the particle pairs which feature in these events. Andrew Elby (1992) has used this same condition as a premise in an independent argument for the conclusion that EPR-type correlations cannot be causally explained (except, perhaps, by a nonlocal hidden variable theory). I wish to argue here that robustness is itself too fragile a notion to support such conclusions.
Shapere on Observation
Authors: Linden Toby
Published: November 2002

In his article “The Concept of Observation in Science and Philosophy” (1982), Dudley Shapere argues for an analysis of what it is for an object to be directly observed (observable). He does so by presenting two contrasting ways of observing the center of the sun. However, his examples, which are probabilistic in nature, are at odds with his analysis, which is absolute. I argue that of the three features of the examples which could serve as the basis for the analysis only one—the amount of alteration to the information being transmitted—can plausibly do so. Having reworked Shapere's analysis on the basis of this feature, I show that the analysis still fails to provide a sufficient condition for observation.
Itamar Pitowsky's Quantum Probability—Quantum Logic
Authors: Malament David B.
Published: November 2002

Itamar Pitowsky's book (1989), published in the Springer-Verlag Lecture Notes in Physics series, brings together several extremely interesting component investigations concerning the foundations of quantum mechanics. All deal with issues of probability including, in one case, the relation of probability to logic. It is a significant contribution, offering both new, nontrivial mathematical results, and provocative philosophical remarks about their significance.
Paul Horwich's Truth
Authors: Hartry Field
Published: November 2002

This is an important book: It is the most sustained defense of a minimalist conception of truth in print. It systematically deals with all of the usual objections to minimalist views of truth (redundancy theories and their ilk), in most cases providing devastating replies to them; and it contains interesting things to say about many issues that are or have been thought to be connected to the topic of truth. Its arguments are lucid and of high quality, and it is broad in scope. I recommend it with enthusiasm.
The Concepts of “Beginning” and “Creation” In Cosmology
Authors: Narlikar Jayant V.
Published: November 2002

The paper is inspired by the arguments raised recently by Grünbaum criticizing the current approaches of many cosmologists to the problem of spacetime singularity, matter creation and the origin of the universe. While agreeing with him that the currently favored cosmological ideas do not indicate the biblical notion of divine creation ex nihilo, I present my viewpoint on the same issues, which differs considerably from Grünbaum's. First I show that the symmetry principle which leads to the conservation law of energy is violated when the time axis is terminated at t = 0. Next I discuss why this epoch (t = 0) is more a mathematical artifact whose supposed significance may disappear when one goes beyond the classical relativistic cosmology. This is illustrated by the example of quantum cosmology.
Probability Functions: The Matter of Their Recursive Definability
Authors: Leblanc Hugues , Roeper Peter
Published: November 2002

This paper studies the extent to which probability functions are recursively definable. It proves, in particular, that the (absolute) probability of a statement A is recursively definable from a certain point on, to wit: from the (absolute) probabilities of certain atomic components and conjunctions of atomic components of A on, but to no further extent. And it proves that, generally, the probability of a statement A relative to a statement B is recursively definable from a certain point on, to wit: from the probabilities relative to that very B of certain atomic components and conjunctions of atomic components of A, but again to no further extent. These and other results are extended to the less studied case where A and B are compounded from atomic statements by means of “∀” as well as “~” and “&”. The absolute probability functions considered are those of Kolmogorov and Carnap, and the relative ones are those of Kolmogorov, Carnap, Rényi, and Popper.
A Limiting Frequency Approach to Probability Based on the Weak Law of Large Numbers
Authors: Neapolitan Richard E.
Published: November 2002

Von Mises defined a “physical” probability as a strict limit of the relative frequency of occurrence of an event in repeated trials. As a result of a number of criticisms of von Mises's approach, the more favored approach became the “propensity” interpretation. It is argued here that this interpretation is not compelling and that the only problem in von Mises's approach is the assumption that the relative frequency converges in a strict sense. This problem is then remedied by deducing the axioms of probability theory from the assumption that the relative frequency converges only in the sense of the weak law of large numbers.
Reduction, Explanatory Extension, and the Mind/Brain Sciences
Authors: Hardcastle Valerie Gray
Published: November 2002

In trying to characterize the relationship between psychology and neuroscience, the trend has been to argue that reductionism does not work without suggesting a suitable substitute. I offer explanatory extension as a good model for elucidating the complex relationship among disciplines which are obviously connected but which do not share pragmatic explanatory features. Explanatory extension rests on the idea that one field can “illuminate” issues that were incompletely treated in another. In this paper, I explain how this “illumination” would work between psychology and neuroscience.
Evolutionary Synthesis: A Search for The Strategy
Authors: Tuomi Juha
Published: November 2002

The goal of evolutionary theory is to (a) specify the general causal structure of evolving systems and (b) analyze evolutionary consequences that are expected to result from the proposed structure of the model systems. Biologists frequently emphasize the hypothetico-deductive method in evolutionary theory. I will show that this method primarily provides a tactical device for (b), while evolutionary synthesis requires a foundation of a unifying conceptual model for (a). Therefore, any successful strategy for a new synthesis requires both a new conceptual insight of evolving systems, and tactical devices for analyzing new specific aspects of the evolutionary process.
Scientific Rationality and Human Reasoning
Authors: Solomon Miriam
Published: November 2002

The work of Tversky, Kahneman and others suggests that people often make use of cognitive heuristics such as availability, salience and representativeness in their reasoning and decision making. Through use of a historical example—the recent plate tectonics revolution in geology—I argue that such heuristics play a crucial role in scientific decision making also. I suggest how these heuristics are to be considered, along with noncognitive factors (such as motivation and social structures) when drawing historical and epistemological conclusions. The normative perspective is community-wide, contextual, and instrumental.
Naturalized Philosophy of Science with a Plurality of Methods
Authors: Stump David
Published: November 2002

Naturalism implies unity of method—an application of the methods of science to the methodology of science itself and to value theory. Epistemological naturalists have tried to find a privileged discipline to be the methodological model of philosophy of science and epistemology. However, since science itself is not unitary, the use of one science as a model amounts to a reduction and distorts the philosophy of science just as badly as traditional philosophy of science distorted science, despite the fact that the central theme of naturalized philosophy of science is that methodology should be true to science as practiced. I argue that naturalized philosophy of science must apply a plurality of methods to epistemological issues.
Discussion: Darwin's Argument in TheOrigin
Authors: Hodge M. J. S.
Published: November 2002

Various claims have been made, recently, that Darwin's argumentation in theOrigininstantiates and so supports some general philosophical proposal about scientific theorizing, for example, the “semantic view”. But these claims are grounded in various incorrect analyses of that argumentation. A summary is given here of an analysis defended at greater length in several papers by the present author. The historical and philosophical advantages of this analysis are explained briefly. Darwin's argument comprises three distinct evidential cases on behalf of natural selection, cases, that is, for itsexistence, itsadequacyand itsresponsibility.Theorizing, today, about evolution by natural selection involves a similar structure of evidential and explanatory concerns.
Discussion: Aims and Achievements of The Reductionist Approach in Biochemistry/Molecular Biology/Cell Biology: A Response to Kincaid
Authors: Robinson Joseph D.
Published: November 2002

Kincaid argues that molecular biology provides little support for the reductionist program, that biochemistry does not reveal common mechanisms, indeed that biochemical theory obstructs discovery. These assertions clash with biologists' stated advocacy of reductionist programs and their claims about the consequent unity of experimental biology. This striking disagreement goes beyond differences in meaning granted to the terms. More significant is Kincaid's misunderstanding of what biochemists do, for a closer look at scientific practice— and one of Kincaid's examples—reveals substantial progress toward explaining biological function with biochemical models. With the molecular detail emerge unifying generalizations as well as further aspects of the functional processes.
Discussion: The Unanimity Theory and Probabilistic Sufficiency
Authors: Carroll John W.
Published: November 2002

The unanimity theory is an account of property-level causation requiring that causes raise the probability of their effects in specified test situations. Richard Otte (1981) and others have presented counterexamples in which one property is probabilistically sufficient for at least one other property. Given the continuing discussion (e.g., Cartwright 1989; Cartwright and Dupré 1988; Eells 1988a,b), many apparently think that these problems are minor. By considering the impact of Otte's cases on recent versions of the theory, by raising several new examples, and by criticizing natural replies, I argue that the problems for the unanimity theory are severe.
Discussion: In Defense of the Quine-Duhem Thesis: A Reply to Greenwood
Authors: Klee Robert
Published: November 2002

While discussing the work of Kuhn and Hanson, John Greenwood (1990) misidentifies the nature of the relationship between the incommensurability of theories and the theory-ladenness of observation. After pointing out this error, I move on to consider Greenwood's main argument that the Quine-Duhem thesis suffers from a form of epistemological self-defeat if it is interpreted to mean that any recalcitrant observation can always be accommodated to any theory. Greenwood finds this interpretation implausible because some adjustments to auxiliary hypotheses undermine too much of the prior observational evidence for the test theory. I argue that Greenwood mistakes the logico-metaphysical Quine-Duhem thesis for an epistemological one. All the argument he takes to undercut it actually illustrates how well the thesis works on a practical level. This is illustrated with an example from contemporary immunology.
Discussion: On The Coherence of Instrumentalism
Authors: Kukla Andre
Published: November 2002

According to a certain type of instrumentalist, we may have good reasons for accepting scientific theories, but never for believing more than their empirical consequences. Horwich (1991) considers several attempts to capture a difference between acceptance and belief, and claims that none of them succeed. He concludes that instrumentalism has not been shown to be a coherent position. However, in the course of his discussion, Horwich himself deploys a conceptual apparatus which is sufficient for formulating the instrumentalist doctrine in a coherent manner. The worst accusation that can be laid against instrumentalists is that they have violated common linguistic usage.
Discussion: Are Methodological Rules Hypothetical Imperatives?
Authors: Resnik David B.
Published: November 2002

This discussion adjudicates a dispute between Larry Laudan and Gerald Doppelt over the nature of methodological rules. Laudan holds that all methodological rules are hypothetical imperatives, while Doppelt argues that a subset of those rules, basic methodological standards, are not hypothetical imperatives. I argue that neither writer offers a satisfactory account of methodological rules and that their reliance on the hypothetical/nonhypothetical distinction does not advance our understanding of methodological rules. I propose that we dispense with this dubious distinction and develop an alternative account of scientific norms.
Discussion: Why The New Theory of Reference Does Not Entail Absolute Time and Space
Authors: Rynasiewicz Robert
Published: November 2002

I explain why the New Theory of Reference of Marcus, Kripke, Kaplan, Putnam and others does not entail absolute time and space, contrary to what Quentin Smith has recently claimed.
The Justification of Induction
Authors: Rosenkrantz R. D.
Published: November 2002

We show there is only one consistent way to update a probability assignment, that given by Bayes's rule. The price of inconsistent updating is a loss of efficiency. The implications of this for the problem of induction are discussed.
Confirmational Holism and Bayesian Epistemology
Authors: Christensen David
Published: November 2002

Much contemporary epistemology is informed by a kind of confirmational holism, and a consequent rejection of the assumption that all confirmation rests on experiential certainties. Another prominent theme is that belief comes in degrees, and that rationality requires apportioning one's degrees of belief reasonably. Bayesian confirmation models based on Jeffrey Conditionalization attempt to bring together these two appealing strands. I argue, however, that these models cannot account for a certain aspect of confirmation that would be accounted for in any adequate holistic confirmation theory. I then survey the prospects for constructing a formal epistemology that better accommodates holistic insights.
Explanatory Unification and the Problem of Asymmetry
Authors: Barnes Eric
Published: November 2002

Philip Kitcher has proposed a theory of explanation based on the notion of unification. Despite the genuine interest and power of the theory, I argue here that the theory suffers from a fatal deficiency: It is intrinsically unable to account for the asymmetric structure of explanation, and thus ultimately falls prey to a problem similar to the one which beset Hempel's D-N model. I conclude that Kitcher is wrong to claim that one can settle the issue of an argument's explanatory force merely on the basis of considerations about the unifying power of the argument pattern the argument instantiates.
Rings, Holes and Substantivalism: On the Program of Leibniz Algebras
Authors: Rynasiewicz Robert
Published: November 2002

In a number of publications, John Earman has advocated a tertium quid to the usual dichotomy between substantivalism and relationism concerning the nature of spacetime. The idea is that the structure common to the members of an equivalence class of substantival models is captured by a Leibniz algebra which can then be taken to directly characterize the intrinsic reality only indirectly represented by the substantival models. An alleged virtue of this is that, while a substantival interpretation of spacetime theories falls prey to radical local indeterminism, the Leibniz algebras do not.

I argue that the program of Leibniz algebras is subject to radical local indeterminism to the same extent as substantivalism. In fact, for the category of topological spaces of interest in spacetime physics, the program is equivalent to the original spacetime approach. Moreover, the motivation for the program—that isomorphic substantival models should be regarded as representing the same physical situation—is misguided.
Observations, Theories and the Evolution of the Human Spirit
Authors: Bogen Jim , Woodward Jim
Published: November 2002

Standard philosophical discussions of theory-ladeness assume that observational evidence consists of perceptual outputs (or reports of such outputs) that are sentential or propositional in structure. Theory-ladeness is conceptualized as having to do with logical or semantical relationships between such outputs or reports and background theories held by observers. Using the recent debate between Fodor and Churchland as a point of departure, we propose an alternative picture in which much of what serves as evidence in science is not perceptual outputs or reports of such outputs and is not sentential in structure.
Indices of Theory Promise
Authors: Whitt Laurie Anne
Published: November 2002

Figuring prominently in their decisions regarding which theories to pursue are scientists' appeals to the promise or lack of promise of those theories. Yet philosophy of science has had little to say about how one is to assess theory promise. This essay identifies several indices that might be consulted to determine whether or not a theory is promising and worthy of pursuit. Various historical examples of appeals to such indices are introduced.
Functions and Goal Directedness
Authors: Enç Berent , Adams Fred
Published: November 2002

We examine two approaches to functions: etiological and forward-looking. In the context of functions, we raise the question, familiar to philosophers of mind, about the explanatory role of properties that arenotsupervenient on the mere dispositional features of a system. We first argue that the question has no easy answer in either of the two approaches. We then draw a parallel between functions and goal directedness. We conclude by proposing an answer to the question: The explanatory importance of nonsupervenient properties (like having the function of doing something, or like being goal-directed) does not lie in any special causal mechanism through which these properties bring about their effects; it lies rather in the different classification of the explananda types that these properties generate.
Reduction and Instrumentalism in Genetics
Authors: Gasper Philip
Published: November 2002

In his important paper “1953 and All That: A Tale of Two Sciences” (1984), Philip Kitcher defends biological antireductionism, arguing that the division of biology into subfields such as classical and molecular genetics is “not simply … a temporary feature of our science stemming from our cognitive imperfections but [is] the reflection of levels of organization in nature” (p. 371). In a recent discussion of Kitcher's views, Alexander Rosenberg has argued, first, that Kitcher has shown that the reduction of classical to molecular genetics is impossible only because of our intellectual limitations and, second, that this kind of antireductionism supports an instrumentalist approach to biological theory. I argue that both of Rosenberg's claims should be rejected despite the fact that Kitcher misdiagnoses the central reason for the failure of reduction.
Eliminative Pluralism
Authors: Ereshefsky Marc
Published: November 2002

This paper takes up the cause of species pluralism. An argument for species pluralism is provided and standard monist objections to pluralism are answered. A new form of species pluralism is developed and shown to be an improvement over previous forms. This paper also offers a general foundation on which to base a pluralistic approach to biological classification.
Discussion: Realism about what?
Authors: Musgrave Alan
Published: November 2002

Roger Jones asks what Newtonian realists should be realists about, given that there are four empirically equivalent formulations of Newtonian mechanics which have different ontological commitments and explanatory mechanisms. A realist answer is sketched: Newtonians should be realists about what the best metaphysical considerations dictate, where the best metaphysical considerations are those which have yielded the best physics. Metaphysical considerations are required within physics, just as they are required to eliminate idealist and surrealist theories which are empirically equivalent to realist ones. Realists must reject the positivist assumption that empirically equivalent theories are explanatory and evidential equivalents, too.
Forever is a Day: Supertasks in Pitowsky and Malament-Hogarth Spacetimes
Authors: Earman John , Norton John D.
Published: November 2002

The standard theory of computation excludes computations whose completion requires an infinite number of steps. Malament-Hogarth spacetimes admit observers whose pasts contain entire future-directed, timelike half-curves of infinite proper length. We investigate the physical properties of these spacetimes and ask whether they and other spacetimes allow the observer to know the outcome of a computation with infinitely many steps.
Defining Chaos
Authors: Batterman Robert W.
Published: November 2002

This paper considers definitions of classical dynamical chaos that focus primarily on notions of predictability and computability, sometimes called algorithmic complexity definitions of chaos. I argue that accounts of this type are seriously flawed. They focus on a likely consequence of chaos, namely, randomness in behavior which gets characterized in terms of the unpredictability or uncomputability of final given initial states. In doing so, however, they can overlook the definitive feature of dynamical chaos—the fact that the underlying motion generating the behavior exhibits extreme trajectory instability. I formulate a simple criterion of adequacy for any definition of chaos and show how such accounts fail to satisfy it.
What Neuropsychology Tells us About Consciousness
Authors: Lahav Ran
Published: November 2002

I argue that, contrary to some critics, the notion of conscious experience is a good candidate for denoting a distinct and scientifically interesting phenomenon in the brain. I base this claim mainly on an analysis of neuropsychological data concerning deficits resulting from various types of brain damage as well as some additional supporting empirical evidence. These data strongly point to the hypothesis that conscious experience expresses information that is available for global, integrated, and flexible behavior.
Supervenience and Computational Explanation in Vision Theory
Authors: Morton Peter
Published: November 2002

According to Marr's theory of vision, computational processes of early vision rely for their success on certain “natural constraints” in the physical environment. I examine the implications of this feature of Marr's theory for the question whether psychological states supervene on neural states. It is reasonable to hold that Marr's theory is nonindividualistic in that, given the role of natural constraints, distinct computational theories of the same neural processes may be justified in different environments. But to avoid trivializing computational explanations, theories must respect methodological solipsism in the sense that within a theory there cannot be differences in content without a corresponding difference in neural states.
Carving Nature at the Joints
Authors: Khalidi Muhammad Ali
Published: November 2002

This paper discusses a philosophical issue in taxonomy. At least one philosopher has suggested the taxonomic principle that scientific kinds are disjoint. An opposing position is defended here by marshalling examples of nondisjoint categories which belong to different, coexisting classification schemes. This denial of the disjointness principle can be recast as the claim that scientific classification is “interest-relative”. But why would anyone have held that scientific categories are disjoint in the first place? It is argued that this assumption is needed in one attempt to derive essentialism. This shows why the essentialist and interest-relative approaches to classification are in conflict.
Backward-Induction Arguments: A Paradox Regained
Authors: Sobel Jordan Howard
Published: November 2002

According to a familiar argument, iterated prisoner's dilemmas of known finite lengths resolve for ideally rational and well-informed players: They would defect in the last round, anticipate this in the next to last round and so defect in it, and so on. But would they anticipate defections even if they had been cooperating? Not necessarily, say recent critics. These critics “lose” the backward-induction paradox by imposing indicative interpretations on rationality and information conditions. To regain it I propose subjunctive interpretations. To solve it I stress that implications for ordinary imperfect players are limited.
Discussion: Astronomy and Antirealism
Authors: Shapere Dudley
Published: November 2002

Relying on an analysis of the case of gravitational lensing, Hacking argues for a “modest antirealism” in astronomy. It is shown here that neither his scientific arguments nor his philosophical doctrines imply an antirealist conclusion. An alternative, realistic interpretation of gravitational lensing, and of the nature and history of astronomy more generally, is suggested.
Buckets of Water and Waves of Space: Why Spacetime is Probably A Substance
Authors: Maudlin Tim
Published: November 2002

This paper sketches a taxonomy of forms of substantivalism and relationism concerning space and time, and of the traditional arguments for these positions. Several natural sorts of relationism are able to account for Newton's bucket experiment. Conversely, appropriately constructed substantivalism can survive Leibniz's critique, a fact which has been obscured by the conflation of two of Leibniz's arguments. The form of relationism appropriate to the Special Theory of Relativity is also able to evade the problems raised by Field. I survey the effect of the General Theory of Relativity and of plenism on these considerations.
Big Numbers and Induction in the Case for Extraterrestrial Intelligence
Authors: Mash Roy
Published: November 2002

Arguments favoring the existence of extraterrestrial intelligence nearly always contain an overt appeal to big numbers, often combined with a covert reliance on generalization from a single instance. In this paper I examine both motifs, and consider whether big numbers might actually make palatable otherwise implausible single-case inductions. In the end, the dispute between believers and skeptics is seen to boil down to a conflict of intuitions which can barely be engaged, let alone resolved, given our present state of knowledge.
How Not to Explain the Errors of the Immune System
Authors: Melander Peter
Published: November 2002

According to Mohan Matthen and Edwin Levy, certain immunological processes require explanations in which the immune system is attributed intentional states. This, they think, strengthens the scientific credentials of intentional psychology and undermines the position of those who argue that the scientific treatment of human action should involve the elimination of intentional description. In this paper, I argue that immunology does not and need not employ intentional explanation or description and consequently has nothing to offer those who seek to defend the scientific standing of intentional psychology by looking for other disciplines that “accommodate the intentional”.
Content, Causation, and Psychophysical Supervenience
Authors: Owens Joseph
Published: November 2002

There is a growing acceptance of the idea that the explanatory states of folk psychology do not supervene on the physical. Even Fodor (1987) seems to grant as much. He argues, however, that this cannot be true of theoretical psychology. Since theoretical psychology offers causal explanations, its explanatory states must be taxonomized in such a way as to supervene on the physical. I use this concession to invert his argument and cast doubt on the received model of folk psychological explanation as causal explanation by intentionally individuated states. This in turn undermines the central model of cognitive theory—causal explanation by representational states.

I wanted to become a Napoleon—that's why I killed the old woman.

Dostoyevsky, Crime and Punishment
Fodor's Theory of Content: Problems and Objections
Authors: Seager William
Published: November 2002

Jerry Fodor has recently proposed a new entry into the list of information based approaches to semantic content aimed at explicating the general notion of representation for both mental states and linguistic tokens. The basic idea is that a tokenmeanswhat causes its production. The burden of the theory is to select the proper cause from the sea of causal influences which aid in generating any token while at the same time avoiding the absurdity of everything's being literally meaningful (since everything has a cause). I argue that a detailed examination of the theory reveals that neither burden can be successfully shouldered.
Functional Explanation and Metaphysical Individualism
Authors: Schwartz Justin
Published: November 2002

G. A. Cohen defends and Jon Elster criticizes Marxist use of functional explanation. But Elster's mechanical conception of explanation is, contrary to Elster's claims, a better basis for vindication of functional explanation than Cohen's nomological conception, which cannot provide an adequate account of functional explanation. Elster also objects that functional explanation commits us to metaphysically bizarre collective subjects, but his argument requires an implausible reading of methodological individualism which involves an unattractive eliminativism about social phenomena.
Bayesianism and Reliable Scientific Inquiry
Authors: Juhl Cory
Published: November 2002

The inductive reliability of Bayesian methods is explored. The first result presented shows that for any solvable inductive problem of a general type, there exists a subjective prior which yields a Bayesian inductive method that solves the problem, although not all subjective priors give rise to a successful inductive method for the problem. The second result shows that the same does not hold for computationally bounded agents, so that Bayesianism is “inductively incomplete” for such agents. Finally a consistency proof shows that inductive agents do not need to disregard inductive failure on sets of subjective probability 0 in order to be ideally rational. Together the results reveal the inadequacy of the subjective Bayesian norms for scientific methodology.
Discussion: Howson and Franklin on Prediction
Authors: Maher Patrick
Published: November 2002

Evidence for a hypothesis typically confirms the hypothesis more if the evidence was predicted than if it was accommodated. Or so I argued in previous papers, where I also developed an analysis of why this should be so. But this was all a mistake if Howson and Franklin (1991) are to be believed. In this paper, I show why they are not to be believed. I also identify a grain of truth that may have been dimly grasped by those Bayesians who deny the confirmatory value of prediction.
Discussion: On Relativity Theory and Openness of the Future
Authors: Maxwell Nicholas
Published: November 2002

In a recent paper Stein (1991) makes a number of criticisms of an earlier paper of mine (Maxwell 1985) that explored the question of whether the idea that the future is genuinely “open” in a probabilistic universe is compatible with special relativity. I disagree with almost all of Stein's criticisms.
Discussion: Reduction, Elimination, and Firewalking
Authors: Cheyne Colin
Published: November 2002

Schwartz (1991) argues that the worry that successful reduction would eliminate rather than conserve the mental is a needless worry. He examines cases of reduction from the natural sciences and claims that if reduction of the mental is like any of those cases then it would not be a case of elimination. I discuss other cases of scientific reduction which do involve elimination. Schwartz has not shown that reduction of the mental could not be like such cases, so his argument is not sufficient to dispel the worry of elimination.
The Dimensions of Selection
Authors: Godfrey-Smith Peter , Lewontin Richard
Published: November 2002

Proponents of genic selectionism have claimed that evolutionary processes normally viewed as selection on individuals can be “represented” as selection on alleles. This paper discusses the relationship between mathematical questions about the formal requirements upon state spaces necessary for the representation of different types of evolutionary processes and causal questions about the units of selection in such processes.
Heritability and Causality
Authors: Sesardic Neven
Published: November 2002

The critics of “hereditarianism” often claim that any attempt to explain human behavior by invoking genes is confronted with insurmountable methodological difficulties. They reject the idea that heritability estimates could lead to genetic explanations by pointing out that these estimates are strictly valid only for a given population and that they are exposed to the irremovable confounding effects of genotype-environment interaction and genotype-environment correlation. I argue that these difficulties are greatly exaggerated, and that we would be wrong to regard them as presenting a fundamental obstacle to the search for genetic explanations. I also show that, to the extent they are cogent, these objections may prove to be even more damaging to the “environmentalist” standpoint.
What is Consciousness?
Authors: Nelkin Norton
Published: November 2002

When philosophers and psychologists think about consciousness, they generally focus on one or more of three features: phenomenality (how experiences feel), intentionality (that experiences are “of” something, that experiences mean something), and introspectibility (our awareness of the phenomenality and intentionality of experience). Using examples from empirical psychology and neuroscience, I argue that consciousness is not a unitary state, that, instead, these three features characterize different and dissociable states, which often happen to occur together. Understanding these three features as dissociable from each other will resolve philosophical disputes and facilitate scientific investigation.
Linking Causal and Explanatory Asymmetry
Authors: Hausman Daniel M.
Published: November 2002

This essay defends two theses that jointly establish a link between causal and explanatory asymmetry. The first thesis is that statements specifying facts about effects, unlike statements specifying facts about causes, are not “independently variable”. The second thesis is that independent variability among purportedly explanatory factors is a necessary condition on scientific explanations.
Socializing Naturalized Philosophy of Science
Authors: Downes Stephen M.
Published: November 2002

I propose an approach to naturalized philosophy of science that takes the social nature of scientific practice seriously. I criticize several prominent naturalistic approaches for adopting “cognitive individualism”, which limits the study of science to an examination of the internal psychological mechanisms of scientists. I argue that this limits the explanatory capacity of these approaches. I then propose a three-level model of the social nature of scientific practice, and use the model to defend the claim that scientific knowledge is socially produced.
A Test of the Scientific Method
Authors: McKee Bill
Published: November 2002

A conventional experiment is proposed to resolve the realist/idealist debate by challenging the premise that double blinding and an attitude of objectivity in general deter the corroborative influence which preconceptions exert on perception. The possibility that objectivity enhances corroboration would not contradict empirical findings, and would account for the success of science.
Hypothetico-Deductivism, Content, and the Natural Axiomatization of Theories
Authors: Gemes Ken
Published: November 2002

In Gemes (1990) I examined certain formal versions of hypothetico-deductivism (H-D) showing that they have the unacceptable consequence that “Abe is a white raven” confirms “All ravens are black”! In Gemes (1992) I developed a new notion of content that could save H-D from this bizarre consequence. In this paper, I argue that more traditional formulations of H-D also need recourse to this new notion of content. I present a new account of the vexing notion of the natural axiomatization of a theory. The notion is used to construct a form of H-D that allows for the type of selective confirmation without which Glymour (1980a,b) claims H-D is hopeless.
The Rise and Fall of Time-Symmetrized Quantum Mechanics
Authors: Sharp W. David , Shanks Niall
Published: November 2002

In the context of a discussion of time symmetry in the quantum mechanical measurement process, Aharonov et al. (1964) derived an expression concerning probabilities for the outcomes of measurements conducted on systems which have been pre- and postselected on the basis of both preceding and succeeding measurements. Recent literature has claimed that a resulting “time-symmetrized” interpretation of quantum mechanics has significant implications for some basic issues, such as contextuality and determinateness, in elementary, nonrelativistic quantum mechanics. Bub and Brown (1986) have shown that under the standard interpretation of the aforementioned expression, these claims employ ensembles which are not well defined. It is argued here that under a counterfactual interpretation of the expression, these claims may be understood as employing well-defined ensembles; it is shown, however, that such an interpretation cannot be reconciled with the standard interpretation of quantum mechanics.
Philosophers Adrift? Comments on the Alleged Disunity of Method
Authors: Kaiser Matthias
Published: November 2002

R. Laudan and L. Laudan (1989) have put forth a new model intended to solve the problem of disagreement, the problem of consensus, and the problem of innovation in science. In support of this model they cite the history of the acceptance of continental drift, or plate tectonics. In this discussion, I claim that this episode does not constitute an instance of their model. The historical evidence does not support this model. Indeed, closer examination seems to weaken it. I also sketch an alternative model.
Why Falsification is the Wrong Paradigm for Evolutionary Epistemology: An Analysis of Hull's Selection Theory
Authors: Gatens-Robinson Eugenie
Published: November 2002

Contemporary empiricism has attempted to ground its analysis of science in a falsificationism based in selection theory. This paper links these evolutionary epistemologies with commitments to certain epistemological and ontological assumptions found in the later work of K. Popper, D. Campbell, and D. Hull. I argue that their assumptions about the character of contemporary empiricism are part of a shared paradigm of epistemological explanation which results in unresolved tensions within their own projects. I argue further that their claim to be doing a science of science is not defensible. Hull's selectionism is analyzed to show how this epistemological agenda has played itself out in late empiricism. I suggest some directions that Hull might take toward an historical epistemology.
A Major Failure within Modern Analytic Philosophy
Authors: Sibelius Patrick
Published: November 2002

The paper claims that analytic philosophy has failed within the philosophy of science due to the way the dynamic aspect of scientific theories is traditionally treated. On the formal side this failure manifests itself in the first-order logical and the model-theoretic analyses of scientific theories. An amendment of the treatment is sketched. It is based on using model generation, of the kind used in proving the Completeness Theorem for first-order logic, in such a way that some dynamic quantities in the dynamic theory are formally represented as functions relating closed terms and sentences to their interpretations in a generated model.
Generalizing Evolutionary Altruism
Authors: Peressini Anthony
Published: November 2002

Although accounts of evolutionary altruism which leave the question of whether altruism can evolve in nature open to empirical confirmation/refutation have been worked out for special (two-trait) cases, no real effort has been made to work out such accounts for general (N-trait) cases. It is tempting to take this lack of attention as evidence for an inextricably conventional element, which precludes such accounts from being of practical scientific value. I argue that such accounts do generalize in a natural way. As is often the case in science, generalizing theoretically simplified notions is not straightforward because of issues hidden in the special case. These issues do not, however, turn out to be essentially conventional.
Neurath's Protocol Statements: A Naturalistic Theory of Data and Pragmatic Theory of Theory Acceptance
Authors: Uebel Thomas E.
Published: November 2002

Neurath's proposal for the form of protocol statements explicates the multiple embedding of a singular sentence as specifying different conditions for the acceptance of such a sentence as a bona fide scientific datum. Before theories are accepted or rejected in the light of such evidence, however, a further condition must be met which Neurath did not formalize. The different conditions are discussed and shown to constitute a naturalistic theory of scientific data and a pragmatic theory of theory acceptance.
Are Prohibitions of Superluminal Causation by Stochastic Einstein Locality and by Absence of Lewisian Probabilistic Counterfactual Causality Equivalent?
Authors: Rédei Miklós
Published: November 2002

Butterfield's (1992a,b,c) claim of the equivalence of absence of Lewisian probabilistic counterfactual causality (LC) to Hellman's stochastic Einstein locality (SEL) is questioned. Butterfield's assumption on which the proof of his claim is based would suffice to prove that SEL implies absence of LC also for appropriately given versions of these notions in algebraic quantum field theory, but the assumption is not an admissible one. The conclusion must be that the relation of SEL and absence of LC is open, and that they may be independent.
The Arrow of Time in Quantum Gravity
Authors: Liu Chuang
Published: November 2002

This essay is a philosophical evaluation of some of the findings of Wald and Penrose in which they claim to have supported an arrow (or the irreversibility) of time in quantum gravity. First, the notion of lawlike irreversibility (or anisotropy) of time is spelled out, then the general situation in quantum mechanics is briefly discussed. Finally, the findings in quantum gravity are evaluated against such a background. My conclusion is that the arrow of time found in quantum gravity is at best de facto (nonlawlike).
Narlikar's “Creation” of the Big Bang Universe was a Mere Origination
Authors: Grünbaum Adolf
Published: November 2002

In Grünbaum (1989, 374, 390), I objected to Narlikar's (1977, 136–137) designation“event of ‘creation’”for asupposed first cosmic instant t= 0, which he imports into the big bang cosmology of the general theory of relativity (GTR). Narlikar (1992, 361–362) does reject a theological construal of the “creation”. But, endeavoring to justify his secular creationism, he now points out that, in the GTR, the usual derivation of matter-energy conservation from Hilbert's stationary action principle cannot beextendedto include the putativefirstinstantt= 0. Narlikar reasons that this “breakdown” in the derivation of energy conservation att =0 qualifies the putative initial event as the “creation event”. I argue that this inference is multiply fallacious.
Louis Althusser's Philosophy and the Spontaneous Philosophy of the Scientists and Other Essays
Authors: Baltas Aristides
Published: November 2002

Alasdair MacIntyre's expression of the “profound gratitude we all owe to Althusser for having brought French Marxism back into dialogue with the rest of French philosophy” (as quoted by Elliott in his introduction to the selection under discussion, 1990, xi), important as it may be for a host of reasons, did not try to make Althusser's philosophy particularly attractive to philosophers of science. However, the present selection of essays does precisely this: It is almost ideally designed to mark the beginnings of an effective encounter of this particular brand of “French Marxism” with philosophy of science.
A New Mathematical Model for Geometric Tolerances as Applied to Round Faces
Authors: Davidson J. K. , Mujezinovic´ A. , Shah J. J.
Published: December 2002

A new mathematical model is presented for representing the tolerances of planar surfaces. The model is compatible with the ASME Standard for geometric tolerances. Central to the new model is a Tolerance-Map®,1 a hypothetical volume of points which corresponds to all possible locations and variations of a segment of a plane which can arise from tolerances on size, form, and orientation. Every Tolerance-Map is a convex set. This model is one part of a bi-level model that we are developing for geometric tolerances. The new model makes stackup relations apparent in an assembly, and these can be used to allocate size and orientational tolerances; the same relations also can be used to identify sensitivities for these tolerances. Stackup relations are developed for parts where the centers of faces are offset laterally. All stackup relations can be met for 100% interchangeability or for a specified probability. Methods are introduced whereby designers can identify trade-offs and optimize the allocation of tolerances. Examples are presented that illustrate important features of the new model.