This paper considers reductions between types of numberings; these reductions preserve the Rogers Semilattice of the numberings reduced and also preserve the number of minimal and positive degrees in their semilattice. It is shown how to use these reductions to simplify some constructions of specific semilattices. Furthermore, it is shown that for the basic types of numberings, one can reduce the left-r.e. numberings to the r.e. numberings and the k-r.e. numberings to the k+1-r.e. numberings; all further reductions are obtained by (...) concatenating these reductions. (shrink)

We examine a definition of the mutual information of two reals proposed by Levin in [5]. The mutual information iswhereK is the prefix-free Kolmogorov complexity. A realAis said to have finite self-information ifI is finite. We give a construction for a perfect Π10class of reals with this property, which settles some open questions posed by Hirschfeldt and Weber. The construction produces a perfect set of reals withK≤+KA+f for any given Δ20fwith a particularly nice approximation and for a specific choice of (...) f it can also be used to produce a perfect Π10set of reals that are low for effective Hausdorff dimension and effective packing dimension. The construction can be further adapted to produce a single perfect set of reals that satisfyK≤+KA+f for allfin a ‘nice’ class of Δ20functions which includes all Δ20orders. (shrink)

The Kolmogorov complexity of a finite binary string is the length of the shortest description of the string. This gives rise to some ‘standard’ lowness notions for reals: A isK-trivial if its initial segments have the lowest possible complexity and A is low forKif using A as an oracle does not decrease the complexity of strings by more than a constant factor. We weaken these notions by requiring the defining inequalities to hold only up to all${\rm{\Delta }}_2^0$orders, and call the (...) new notions${\rm{\Delta }}_2^0$-bounded K-trivialand${\rm{\Delta }}_2^0$-bounded low for K. Several of the ‘nice’ properties ofK-triviality are lost with this weakening. For instance, the new weaker definitions both give uncountable set of reals. In this paper we show that the weaker definitions are no longer equivalent, and that the${\rm{\Delta }}_2^0$-boundedK-trivials are cofinal in the Turing degrees. We then compare them to other previously studied weakenings, namelyinfinitely-often K-trivialityandweak lowness for K. We show that${\rm{\Delta }}_2^0$-boundedK-trivial implies infinitely-oftenK-trivial, but no implication holds between${\rm{\Delta }}_2^0$-bounded low forKand weakly low forK. (shrink)

Less discussed than Hume’s skepticism about what grounds there could be for projecting empirical hypotheses is his concern with a skeptical regress that he thought threatened to extinguish any belief when we reflect that our reasoning is not perfect. The root of the problem is the fact that a reflection about our reasoning is itself a piece of reasoning. If each reflection is negative and undermining, does that not give us a diminution of our original belief to nothing? It requires (...) much attention to detail, we argue, to determine whether or not there is a skeptical problem in this neighborhood. Consider that if we subsequently doubt a doubt we had about our reasoning, that would suggest a restoration of some of the force of our original belief. We would then have instead of runaway skepticism an alternating sequence of pieces of skeptical reasoning that cancel each others’ effects on our justification in the original proposition, at least to some degree. We will argue that the outcome of the sequence of reflections Hume is imagining depends on information about a given case that is not known a priori. We conclude this from the fact that under three precise, explanatory, and viable contemporary reconstructions of what this kind of reasoning about reasoning could be like and how it has the potential to affect our original beliefs, a belief-extinguishing regress is not automatic or necessary. (shrink)

Recent scholarship has shown Nietzsche to offer an original and insightful moral psychology centering on a motivational feature he calls ‘will to power.’ In many places, though, Nietzsche presents will to power differently, as the ‘essence of life,’ an account of ‘organic function,’ even offering it as a correction to physiologists. This paper clarifies the scope and purpose of will to power by identifying the historical physiological view at which Nietzsche directs his criticisms and by identifying his purpose in doing (...) so. Nietzsche’s criticism, it is argued, is a widespread and pre-Darwinian description of the basic dispositions of organisms and their internal processes. The purpose of this criticism is to undermine the efforts of Herbert Spencer and Arthur Schopenhauer to derive moral-psychological insights from that description. The paper concludes that Nietzsche’s proposal to conceive of ‘organic function’ in terms of will to power is of little import for his moral psychology besides clearing away competing views. (shrink)

New Blackfriars, Volume 103, Issue 1104, Page 294-308, March 2022.

This analysis of Herbert Marcuse’s appropriation of the argument concerning the “mathematization of nature” in Edmund Husserl’s Crisis of the European Sciences and Transcendental Phenomenology shows that Marcuse and Husserl both assume that the perception of real, concrete individuals in the lifeworld underlies formal scientific abstractions and that the critique of the latter requires a return to such qualitative perception. In contrast, I argue that no such return is possible and that real, concrete individuals are constituted by the relation between (...) a given perception and its horizon. In this manner, Marcuse’s social critique can be combined with Husserl’s theoretical-perceptual one, making possible an ecological critique. L’analyse de l’appropriation que fait Herbert Marcuse de l’argument concernant la « mathématisation de la nature » dans la Crise des sciences europe ennes et la phénoménologie transcendantale de Husserl démontre que Marcuse et Husserl assument tous les deux que la perception des individus réels concrets dans le monde de la vie sous-tend les abstractions scientifiques formelles et que la critique de ces dernières nécessite un retour à la perception qualificative. J’avance au contraire qu’un tel retour n’est pas possible et que les individus réels concrets sont constitués par la relation entre une perception donnée et son horizon. Nous pouvons alors combiner la critique sociale de Marcuse avec la critique théorico-perceptuelle de Husserl pour en faire une critique égologique. (shrink)

Bernice R. broke down so badly, when she turned nineteen, and behaved so much like a retarded child that she was committed to the Ohio State Bureau of Juvenile Research. Its director, Henry Herbert Goddard, a psychologist of some distinction, recognized that she suffered from multiple personality disorder. She underwent a course of treatment lasting nearly five years, after which “the dissociation seems to be overcome and replaced by a complete synthesis. [She] is working regularly a half day and seems (...) reasonably happy in her reactions to her environment.”1 Therapy enabled her core personality and her main alter to make contact with each other, and for her to understand her past and, to some extent, why she had split.Her story prompts questions about evidence, objectivity, historical truth, psychological reality, self-knowledge, and the soul. It involves that powerful intersection of morality and metaphysics: why is it of value to have a self-understanding founded on true beliefs about ourselves and our past, or at any rate on memories that are not strictly false? To what extent is such self=knowledge based on evidence? To what extent is it knowledge at all? Ian Hacking, a philosopher, teaches at the Institute for the History and Philosophy of Science and Technology in the University of Toronto, and he is the author of Taming Chance . His most recent contribution to Critical Inquiry is “The Making and Molding of Child Abuse”. (shrink)

An extended review essay on Andrew Feenberg's Heidegger and Marcuse that argues that the concept of negation in Hegel is distinct from that in Heidegger which makes such an attempted synthesis problematic.

An intro. to Didaktic (the heart of thinking about teaching/teacher educ in Germany) for English-speaking readers, drawing on a range of writings assoc. w/ this tradition. Throws light on assumptions, characteristics, & weaknesses of curriculum thought.

Experimental philosophy of religion is the project of taking the tools and resources of the human sciences—especially psychology and cognitive science—and bringing them to bear on issues within philosophy of religion toward explicit philosophical ends. This paper introduces readers to experimental philosophy of religion. §1 explores the contours of experimental philosophy of religion by contrasting it with a few related fields: the psychology of religion and cognitive science of religion, on the one hand, and natural theology, on the other. §2 (...) offers a brief history of experimental philosophy of religion. The goal in this section is to highlight the ancient pedigree of this emerging area of research; as the contemporary experimental philosophy of religion literature expands and proliferates, it’s important to remember that this field has deep historical roots. Then, §3 focuses on the following questions: Why should we care about experimental philosophy of religion? And why is it needed? (shrink)

Herbert Clark argues that language use is more than the sum of a speaker speaking and a listener listening. It is the joint action that emerges when speakers and listeners, writers and readers perform their individual actions in coordination, as ensembles. In contrast to work within the cognitive sciences, which has seen language use as an individual process, and to work within the social sciences, which has seen it as a social process, the author argues strongly that language use embodies (...) both individual and social processes. (shrink)

An expanded & revised version of Religion in an Age of Science. Three new chapters on physics & metaphysics in the 18th century and biology & theology in the 19th century. Other new sections included.

Religion and Science is a comprehensive examination of the major issues between science and religion in today's world. With the addition of three new historical chapters to the nine chapters (freshly revised and updated) of Religion in an Age of Science, winner of the Academy of Religion Award for Excellence in 1991, Religion and Science is the most authoritative and readable book on the subject, sure to be used by science and religion courses and discussion groups and to become the (...) introduction of choice for general readers. (shrink)

Introduction -- Evidence from children -- Evidence form infants and non-human animals -- Evidence from neuroimaging and neuropsychology -- Evidence from adults -- The cognitive basis of mindreading -- Elaborating and applying the theory.

First published 1966 Includes index Includes bibliographical references Campion Collection.

Alfredo Traps in Durrenmatt’s tale discovers that he has brought off, all by himself, a murder involving considerable ingenuity. The mock prosecutor in the tale demands the death penalty “as reward for a crime that merits admiration, astonishment, and respect.” Traps is deeply moved; indeed, he is exhilarated, and the whole of his life becomes more heroic, and, ironically, more precious. His defense attorney proceeds to argue that Traps was not only innocent but incapable of guilt, “a victim of the (...) age.” This defense Traps disavows with indignation and anger. He makes claim to the murder as his and demands the prescribed punishment—death. (shrink)

Philosophers have lately seized upon Sperling's partial report technique and subsequent work on iconic memory in support of controversial claims about perceptual experience, in particular that phenomenology overflows cognitive access. Drawing on mounting evidence concerning postdictive perception, I offer an interpretation of Sperling's data in terms of cue-sensitive experience which fails to support any such claims. Arguments for overflow based on change-detection paradigms (e.g. Landman et al., 2003; Sligte et al., 2008) cannot be blocked in this way. However, such paradigms (...) are fundamentally different from Sperling's and, for rather different reasons, equally fail to establish controversial claims about perceptual experience. (shrink)

It is often said that one person or society is `freer' than another, or that people have a right to equal freedom, or that freedom should be increased or even maximized. Such quantitative claims about freedom are of great importance to us, forming an essential part of our political discourse and theorizing. Yet their meaning has been surprisingly neglected by political philosophers until now. Ian Carter provides the first systematic account of the nature and importance of our judgements about degrees (...) of freedom. He begins with an analysis of the normative assumptions behind the claim that individuals are entitled to a measure of freedom, and then goes on to ask whether it is indeed conceptually possible to measure freedom. Adopting a coherentist approach, the author argues for a conception of freedom that not only reflects commonly held intuitions about who is freer than who but is also compatible with a liberal or freedom-based theory of justice. (shrink)

Luck permeates our lives, and this raises a number of pressing questions: What is luck? When we attribute luck to people, circumstances, or events, what are we attributing? Do we have any obligations to mitigate the harms done to people who are less fortunate? And to what extent is deserving praise or blame a ected by good or bad luck? Although acquiring a true belief by an uneducated guess involves a kind of luck that precludes knowledge, does all luck undermine (...) knowledge? And how accurate are our luck attributions anyway? The academic literature has seen growing, interdisciplinary interest in luck, and this volume brings together and explains the most important areas of this research. It consists of 39 newly commissioned chapters, written by an internationally acclaimed team of philosophers and psychologists, for a readership of students and researchers. Its coverage is divided into six sections: (i) The History of Luck, (ii) The Nature of Luck, (iii) Moral Luck, (iv) Epistemic Luck, (v) The Psychology of Luck, and (vi) Future Research. The chapters in these sections cover a wide range of topics, from the problem of moral luck, to anti-luck epistemology, to the relationship between luck attributions and cognitive biases, to meta-questions regarding the nature of luck itself, to a range of other theoretical and empirical questions currently being investigated by ethicists, epistemologists, and psychologists. By bringing this research together, the Handbook serves as both a touchstone for understanding the relevant issues and a first port of call for future philosophical and psychological research on luck. (shrink)

(2013). Brandom and Gadamer on the Hermeneutical (Il)legitimacy of Rational Reconstruction. International Journal of Philosophical Studies. ???aop.label???

Many epistemologists have recently defended views on which all evidence is true or perceptual reasons are facts. On such views a common account of basic perceptual reasons is that the fact that one sees that p is one’s reason for believing that p. I argue that that account is wrong; rather, in the basic case the fact that p itself is one’s reason for believing that p. I show that my proposal is better motivated, solves a fundamental objection that the (...) received view faces, and illuminates the nature of reasons for belief. (shrink)

How do we know when one person or society is 'freer' than another? Can freedom be measured? Is more freedom better than less? This book provides the first full-length treatment of these fundamental yet neglected issues, throwing new light both on the notion of freedom and on contemporary liberalism.

Two intellectual vices seem to always tempt us: arrogance and diffidence. Regarding the former, the world is permeated by dogmatism and table-thumping close-mindedness. From politics, to religion, to simple matters of taste, zealots and ideologues all too often define our disagreements, often making debate and dialogue completely intractable. But to the other extreme, given a world with so much pluralism and heated disagreement, intellectual apathy and a prevailing agnosticism can be simply all too alluring. So the need for intellectual humility, (...) open-mindedness, and a careful, humble commitment to the truth are apparent. In this book, Dr Church and Dr Samuelson explicate a robust and vibrant account of the philosophy and science of this most valuable virtue, and they highlight how it can be best applied and personally developed. (shrink)

Philosophers have long struggled to understand our perceptual experience of temporal properties such as succession, persistence and change. Indeed, strikingly, a number have felt compelled to deny that we enjoy such experience. Philosophical puzzlement arises as a consequence of assuming that, if one experiences succession or temporal structure at all, then one experiences it at a moment. The two leading types of theory of temporal awareness—specious present theories and memory theories—are best understood as attempts to explain how temporal awareness is (...) possible within the constraints of this principle. I argue that the principle is false. Neither theory of temporal awareness can be made workable unless it is rejected. Our experience of temporal phenomena cannot be understood if we attempt to break experience down into instantaneous slices. In order to understand the perception of temporal properties we must look beyond the instant. (shrink)

A great achievement makes one’s life go better independently of its results, but what makes an achievement great? A simple answer is—its difficulty. I defend this view against recent, pressing objections by interpreting difficulty in terms of competitiveness. Difficulty is determined not by how hard the agent worked for the end but by how hard others would need to do in order to compete. Successfully reaching a goal is a valuable achievement because it is difficult, and it is difficult because (...) it is competitive. Hence, both virtuosic performances and lucky successes can be valuable achievements. (shrink)

A survey of Euclid's Elements, this text provides an understanding of the classical Greek conception of mathematics and its similarities to modern views as well as its differences. It focuses on philosophical, foundational, and logical questions — rather than strictly historical and mathematical issues — and features several helpful appendixes.

Why are some people more mentally able than others? In an authoritative, critical and intergrated series of review essays Professor Ian Deary inquires after the cognitive and biological foundations of human mental ability differences. Many accounts of intelligence have examined the structure and number of human mental ability differences and whether they can predict sucess in education,work and social life. Few books have taken psychometric intelligence differences as a starting point and brought together the reductionistic attempts to explain them.New to (...) the highly acclaimed Oxford Psychology Series, Looking Down on Human Intelligence appraises the search for the origins of psychometric intelligence differences in terms of brain function parameters. The book provides an original and thought provoking guide to ancient and modern research on one of the most compelling questions in human psychology. (shrink)

Introductions to the theory of knowledge are plentiful, but none introduce students to the most recent debates that exercise contemporary philosophers. Ian Evans and Nicholas D. Smith aim to change that. Their book guides the reader through the standard theories of knowledge while simultaneously using these as a springboard to introduce current debates. Each chapter concludes with a “Current Trends” section pointing the reader to the best literature dominating current philosophical discussion. These include: the puzzle of reasonable disagreement; the so-called (...) “problem of easy knowledge”; the intellectual virtues; and new theories in the philosophy of language relating to knowledge. Chapters include discussions of skepticism, the truth condition, belief and acceptance, justification, internalism versus externalism, epistemic evaluation, and epistemic contextualism. Evans and Smith do not merely offer a review of existing theories and debates; they also offer a novel theory that takes seriously the claim that knowledge is not unique to humans. Surveying current scientific literature in animal ethology, they discover surprising sophistication and diversity in non-human cognition. In their final analysis the authors provide a unified account of knowledge that manages to respect and explain this diversity. They argue that animals know when they make appropriate use of the cognitive processes available to animals of that kind, in environments within which those processes are veridically well-adapted. _Knowledge_ is a lively and accessible volume, ideal for undergraduate and post-graduate students. It is also set to spark debate among scholars for its novel approaches to traditional topics and its thoroughgoing commitment to naturalism. (shrink)

Why save endangered species without clear aesthetic, economic, or ecosystemic value? This book takes on this challenging question through an account of the intrinsic goods of species. Ian A. Smith argues that a species’ intrinsic value stems from its ability to flourish—its organisms continuing to reproduce successfully and it avoiding extinction—which helps to demonstrate a further claim, that humans ought to preserve species that we have endangered. He shows our need to exercise humility in our relations with endangered species through (...) the preservation of their intrinsic goods, which in turn rectifies our degradation of their importance. Unique in its appeal to virtue ethics and to species concepts, _The Intrinsic Value of Endangered Species_ is an important resource for scholars working in environmental ethics and the philosophy of biology. (shrink)

The foundation of historical materialism.--A study on authority.--Sartre's existentialism.--Karl Popper and the problem of historical laws.--Freedom and the historical imperative.