8.3 The consistency proof -- 8.4 Applications of the consistency proof -- 8.5 Second-order arithmetic -- Problems -- Chapter 9: Set Theory -- 9.1 Axioms for sets -- 9.2 Development of set theory -- 9.3 Ordinals -- 9.4 Cardinals -- 9.5 Interpretations of set theory -- 9.6 Constructible sets -- 9.7 The axiom of constructibility -- 9.8 Forcing -- 9.9 The independence proofs -- 9.10 Large cardinals -- Problems -- Appendix The Word Problem -- Index.

The epistemology of testimony has experienced a growth in interest over the last twenty-five years that has been matched by few, if any, other areas of philosophy. _Testimony: A Philosophical Introduction _provides an epistemology of testimony that surveys this rapidly growing research area while incorporating a discussion of relevant empirical work from social and developmental psychology, as well as from the interdisciplinary study of knowledge-creation in groups. The past decade has seen a number of scholarly monographs on the epistemology of (...) testimony, but there is a dearth of books that survey the current field. This book fills that gap, assessing the strengths and weaknesses of all major competing theories. All chapters conclude with Suggestions for Further Reading and Discussion Questions. (shrink)

How does the monitoring of a testifier's credibility by recipients of testimony bear upon the epistemic licence accruing to a recipient's belief in the testifier's communications? According to an intuitive and philosophically influential conception, licensed acceptance of testimony requires that recipients of testimony monitor testifiers with respect to their credibility. I argue that this conception, however, proves to be untenable when confronted with the wealth of empirical evidence bearing on the ways in which testifiers and their interlocutors actually interact.

Joseph Agassi is a critic, a gadfly, a debunker and deflater; he is also a constructor, a speculator and an imaginative scholaro In the history and philosophy of science, he has been Peck's bad boy, delighting in sharp and pungent criticism, relishing directness and simplicity, and enjoying it all enormously. As one of that small group of Popper's students (ineluding Bartley, Feyerabend and Lakatos) who took Popper seriously enough to criticize him, Agassi remained his own man, holding Popper's work (...) itself to the criteria of critical refutation. Agassi's range is wide and his publications proliik. He has published serious studies in the historiography of science, applied sociology (on Hong Kong with LC. Jarvie), foundations of anthropology, interpretive scientific biography (Faraday), Judaic studies, philosophy of technology (which Agassi pioneered, particulady in distinguishing it from the philosophy of science), as weIl as the many works on the Iogic, methodoI­ ogy, and history of science. Even as we go to press, Agassi's works are appearing; we append an imperfect and selected bibliography. For Agassi, the test of relevance is whether something is interesting. (shrink)

Citing some recent experimental findings, I argue for the surprising claim that in some cases the less time you have the more you know. More specifically, I present some evidence to suggest that our ordinary knowledge ascriptions are sometimes sensitive to facts about an epistemic subject's truth-irrelevant time constraints such that less is more. If knowledge ascriptions are sensitive in this manner, then this is some evidence of pragmatic encroachment. Along the way, I consider comments made by Jonathan Schaffer and (...) Jennifer Nagel to construe a purist contextualist and a strict invariantist explanation of the data respectively, before giving reasons to resist them in favor of an account that indicates pragmatic encroachment. If successful, this may suggest a new way to argue for the controversial thesis that there is pragmatic encroachment on knowledge. (shrink)

In this book Joseph Heath brings Jürgen Habermas's theory of communicative action into dialogue with the most sophisticated articulation of the instrumental conception of practical rationality-modern rational choice theory. Heath begins with an overview of Habermas's action theory and his critique of decision and game theory. He then offers an alternative to Habermas's use of speech act theory to explain social order and outlines a multidimensional theory of rational action that includes norm-governed action as a specific type.In the second (...) part of the book Heath discusses the more philosophical dimension of Habermas's conception of practical rationality. He criticizes Habermas's attempt to introduce a universalization principle governing moral discourse, as well as his criteria for distinguishing between moral and ethical problems. Heath offers an alternative account of the level of convergence exhibited by moral argumentation, drawing on game-theoretic models to specify the burden of proof that the theory of communicative action and discourse must assume. (shrink)

In what follows, I appeal to Charles Babbage’s discussion of the division of mental labor to provide evidence that—at least with respect to the social acquisition, storage, retrieval, and transmission of knowledge—epistemologists have, for a broad range of phenomena of crucial importance to actual knowers in their epistemic practices in everyday life, failed adequately to appreciate the significance of socially distributed cognition. If the discussion here is successful, I will have demonstrated that a particular presumption widely held within the contemporary (...) discussion of the epistemology of testimony—a presumption that I will term the personalist requirement—fails to account for those very practices of knowers that I detail here. I will then conclude by suggesting that an alternate account of testimonial warrant, one that has heretofore been underappreciated, ought to be given more serious consideration—in particular because it is well suited to account for those actual practices of knowers that the personalist requirement leaves unrecognized. (shrink)

The deeply entrenched, sometimes heated conflict between the disability movement and the profession of bioethics is well known and well documented. Critiques of prenatal diagnosis and selective abortion are probably the most salient and most sophisticated of disability studies scholars’ engagements with bioethics, but there are many other topics over which disability activists and scholars have encountered the field of bioethics in an adversarial way, including health care rationing, growth-attenuation interventions, assisted reproduction technology, and physician-assisted suicide. -/- The tension between (...) the analyses of the disabilities studies scholars and mainstream bioethics is not merely a conflict between two insular political groups, however; it is, rather, also an encounter between those who have experienced disability and those who have not. This paper explores that idea. I maintain that it is a mistake to think of this conflict as arising just from a difference in ideology or political commitments because it represents a much deeper difference—one rooted in variations in how human beings perceive and reason about moral problems. These are what I will refer to as variations of moral psychology. The lived experiences of disability produce variations in moral psychology that are at the heart of the moral conflict between the disability movement and mainstream bioethics. I will illustrate this point by exploring how the disability movement and mainstream bioethics come into conflict when perceiving and analyzing the moral problem of physician-assisted suicide via the lens of the principle of respect for autonomy. To reconcile its contemporary and historical conflict with the disability movement, the field of bioethics must engage with and fully consider the two groups’ differences in moral perception and reasoning, not just the explicit moral and political arguments of the disability movement. (shrink)

While engaging in rich discussion, Conspiracy Theories analyzes current arguments and evidence while providing real-world examples so students can contextualize and visualize the debates. Each chapter addresses important current questions, provides conceptual tools, defines important terms, and introduces the appropriate methods of analysis.

It may seem obvious that causing disability in another person is morally problematic in a way that removing or preventing a disability is not. This suggests that there is a moral asymmetry between causing disability and causing non-disability. This chapter investigates whether there are any differences between these two types of actions that might explain the existence of a general moral asymmetry. After setting aside the possibility that having a disability is almost always bad or harmful for a person (a (...) view that we have critiqued at length elsewhere), seven putative differences are considered. Ultimately, it is concluded that none of these seven factors can ground a general moral asymmetry between causing disability and causing non-disability, though each factor can provide some moral reason to avoid causing disability in certain particular cases. (shrink)

In his recent paper ‘Knowing What Things Look Like’, Matthew McGrath offers a challenge to the idea that knowing an object by seeing it, ‘visual objectual knowledge’ is an instance of immediate knowledge. I offer supporters of the notion of immediate visual objectual knowledge two potential strategies for blocking McGrath’s argument: either by questioning McGrath’s claim about the role that knowing what an object looks like plays in visual objectual knowledge or by denying that any explanation of how knowing what (...) an object looks like plays that role must proceed through an appeal to factual knowledge involving that object’s looks. (shrink)

In this paper I focus on John Locke as a representative figure of English Enlightenment theorizing about the legitimacy of cognitive authority and examine the way in which a greater attention to the cultural milieu in which Locke worked can lead to a profound reexamination of his writings on cognitive authority. In particular, I suggest that an inattention to the rise of a culture of reading and the growing availability of books in Early Modern England has led historians of philosophy (...) largely to misrepresent Locke's theory of testimonial justification. At the core of my paper are two interrelated claims. First, with respect to the history of ideas, I argue that the Locke's interest in testimony as a source of justification was in fact greater than that of his Scholastic forebears, and that this fact has a simple, if as yet unacknowledged, cultural cause -- viz., the rise of the book as a mass commodity in the late 17th century. Second, with respect to the history of philosophy more particularly, I argue that this failure to acknowledge the cultural movements that led to a consideration of testimony as a topic of interest to epistemologists in the Modern era has led to a misreading of Locke's work on the subject. Indeed, Locke, though usually read as having attempted to denigrate testimony as a legitimate source of justification, in fact sought to devise an epistemology that would do justice to the centrality of testimony in the intellectual lives of growing numbers of his contemporaries in 17th and 18th century England and Scotland. (shrink)

One vexed philosophical question that once enjoyed great esteem is this: in the Beatific Vision that the saints enjoy in heaven, does happiness (beatitudo) consist in the vision of God, in delight in God, or in a combination of the vision and the delight? The answer that one gives to this question apparently commits one to a view about what happiness is ultimately about. It has long been thought that Aquinas holds that happiness consists in the vision of God alone. (...) In this essay, I argue that, on this important issue, Aquinas actually maintains that happiness consists both in the vision of God and delight in God, but that—unlike some of his contemporaries—Aquinas unequivocally affirms that the vision is more important in happiness than the delight. After arguing for this interpretation, I consider the quite compelling account of perfect and imperfect happiness that seems to follow from it. (shrink)

The debate concerning the role of intuitions in philosophy has been characterized by a fundamental disagreement between two main camps. The first, the autonomists, hold that, due to the use in philosophical investigation of appeals to intuition, most of the central questions of philosophy can in principle be answered by philosophical investigation and argument without relying on the sciences. The second, the naturalists, deny the possibility of a priori knowledge and are skeptical of the role of intuition in providing evidence (...) in philosophical inquiry. In spite of the seemingly stark and deep disagreement between the autonomist and the naturalist, in this paper I will attempt to suggest that there is a way to mount a partial defense of intuition-based philosophical practice on naturalist grounds. As will be seen, doing so will require a number of concessions that will satisfy few autonomists while simultaneously disappointing those naturalists who might have thought that all notions of the a priori had been successfully laid to rest. However, I will argue that the account proposed here will preserve those features of traditional philosophical practice that matter most and better explain the history of successes and failures of that practice, thus answering the worries of the autonomist, and that the rejection of the No A Priori Thesis attendant with the account presented here is indeed demanded by the current theories of our best scientific understanding of the mind, thus pacifying the rabid naturalistic critic of any version of apriorism. (shrink)

In the late 1970s and the 1980s, a number of radical left political theorists focused their philosophical attention on the relevance of ancient atomism, revitalizing a tradition that went back to Karl Marx's work on his dissertation. This essay looks at the uses of atomism by two thinkers in particular, Jacques Rancière and Alain Badiou, in order to see how their discussions of and references to ancient materialism help to shed light on their fundamental disagreements about the nature of community (...) and equality. First, this paper argues that what Badiou and Rancière most obviously share in their assessments of atomism is a negative judgment regarding the post-swerve constitution of the world, while what most obviously distinguishes their positions is their differing judgments regarding the preswerve rain of the atoms in the void. Becoming clear both about how Badiou and Rancière respond to what comes before and after the atomistic swerve helps to clarify an implicit response on Rancière’s part to what has become Badiou’s chief objection to Rancière’s political theory. Second, this paper argues that the fact that Badiou assesses both what comes before and what comes after the swerve as negative, while Rancière assesses only what comes after the swerve as negative, makes clear that their most essential point of difference concerns the status of the swerve that mediates between before and after. Working through the complexities of Badiou’s analysis of the swerve and uncovering Rancière’s extremely subtle analysis of the swerve helps to clarify a major aspect of what has become Rancière’s chief criticism of Badiou’s conception of philosophy. (shrink)

LetCbe an axiom system formalized within the first order functional calculus, and letC′ be related toCas the Bernays-Gödel set theory is related to the Zermelo-Fraenkel set theory. Ilse Novak [5] and Mostowski [8] have shown that, ifCis consistent, thenC′ is consistent. Mostowski has also proved the stronger result that any theorem ofC′ which can be formalized inCis a theorem ofC.The proofs of Novak and Mostowski do not provide a direct method for obtaining a contradiction inCfrom a contradiction inC′. We could, (...) of course, obtain such a contradiction by proving the theorems ofCone by one; the above result assures us that we must eventually obtain a contradiction. A similar process is necessary to obtain the proof of a theorem inCfrom its proof inC′. The purpose of this paper is to give a new proof of these theorems which provides a direct method of obtaining the desired contradiction or proof.The advantage of the proof may be stated more specifically by arithmetizing the syntax ofCandC′. (shrink)

Disability activists have sometimes claimed their disability has actually increased their well-being. Some even say they would reject a cure to keep these gains. Yet, these same activists often simultaneously propose improvements to the quality and accessibility of assistive technology. However, for any argument favoring assistive over curative technology to work, there must be a coherent distinction between the two. This line is already vague and will become even less clear with the emergence of novel technologies. This paper asks and (...) tries to answer the question: what is it about the paradigmatic examples of curative and assistive technologies that make them paradigmatic and how can these defining features help us clarify the hard cases? This analysis will begin with an argument that, while the common views of this distinction adequately explain the paradigmatic cases, they fail to accurately pick out the relevant features of those technologies that make them paradigmatic and to provide adequate guidance for parsing the hard cases. Instead, it will be claimed that these categories of curative or assistive technologies are defined by the role the technologies play in establishing a person’s relational narrative identity as a member of one of two social groups: disabled people or non-disabled people. (shrink)

A defining characteristic of Alzheimer’s disease is difficulty in retrieving semantic memories, or memories encoding facts and knowledge. While it has been suggested that this impairment is caused by a degradation of the semantic store, the precise ways in which the semantic store is degraded are not well understood. Using a longitudinal corpus of semantic fluency data, we derive semantic network representations of patients with Alzheimer’s disease and of healthy controls. We contrast our network-based approach with analyzing fluency data with (...) the standard method of counting the total number of items and perseverations in fluency data. We find that the networks of Alzheimer’s patients are more connected and that those connections are more randomly distributed than the connections in networks of healthy individuals. These results suggest that the semantic memory impairment of Alzheimer’s patients can be modeled through the inclusion of spurious associations between unrelated concepts in the semantic store. We also find that information from our network analysis of fluency data improves prediction of patient diagnosis compared to traditional measures of the semantic fluency task. (shrink)

Much of what we know results from information sources on which we epistemically rely. This fact about epistemic reliance, however, stands in tension with a very powerful intuition governing knowledge, an intuition that Pritchard (e.g., 2010) has termed the “ability intuition,” the idea that a believer's “reliable cognitive faculties are the most salient part of the total set of causal factors that give rise to [their] believing the truth” (Vaesen, 2011, p. 518; compare Greco, 2003; 2009; 2010). In this paper (...) I suggest that this tension may indeed be ineliminable. I proceed by canvassing some representative attempts to reconcile epistemic reliance and the ability intuition. In doing so, I suggest that all of these attempts founder on one or the other of two elements of what I've previously described (Shieber, 2013, 2015) as a “personalist presumption” in discussions of social epistemology: an excessive focus on (i) reliability filters within the persons who are the recipients of information or (ii) on reliable truth‐tracking and ‐conveying abilities in the persons who are the transmitters of information. In conclusion, I suggest how best to resolve the tension: by abandoning the ability intuition. (shrink)

The theory of epistemic vigilance posits that -- to quote the eponymous paper that introduced the theory -- “humans have a suite of cognitive mechanisms for epistemic vigilance, targeted at the risk of being misinformed by others." Despite the widespread acceptance of the theory of epistemic vigilance, however, I argue that the theory is a poor fit with the evidence: while there is good reason to accept that people ARE vigilant, there is also good reason to believe that their vigilance (...) is NOT epistemic. Rather, the evidence actually supports an alternative theory, one that I dub the theory of "Machiavellian vigilance": humans have a suite of cognitive mechanisms for Machiavellian vigilance, targeted at tracking others' relative social status and maintaining or enhancing one's own status. The evidence against epistemic vigilance stems from three sources: (a) data demonstrating that people are terrible at detecting honesty or competence, (b) data demonstrating that our vigilance is phylogenetically prior to the development of homo sapiens, and therefore was not designed to be sensitive to linguistic communication, and (c) data demonstrating that people's sources of information are distributed, and not detectable through individual vigilance. The evidence in favor of Machiavellian vigilance is the mirror image of the evidence against epistemic vigilance: (a) data demonstrating that people are very accurate at detecting status, (b) data demonstrating that social species, including bonobos and chimps, track the social status of their conspecifics, and (c) data demonstrating that people can quickly track status even in new social groups. (shrink)

In this paper I discuss some underlying motivations common to most strands of experimental philosophy, noting that most forms of experimental philosophy have a commitment to the claim that certain empirical evidence concerning the level of agreement on intuitive judgments across cultures, ethnic groups or socioeconomic strata impugns the role that intuitions play in traditional “armchair” philosophy. I then develop an argument to suggest that, even if one were to grant the truth of the data adduced by experimentalists regarding the (...) level of agreement—or lack thereof—regarding intuitive judgments among various groups, this would nevertheless not yet provide sufficient basis to reject the role of intuitions in traditional philosophical theorizing. Though this argument, if successful, will not prove fatal to all forms of experimental philosophy, it would limit the scope of experimental philosophical criticisms of traditional philosophical practice. (shrink)

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections (...) in the preservation process, and hope you enjoy this valuable book. (shrink)

In this paper, I take up an argument advanced by Keith DeRose (Philosophical Review, 111:167–203, 2002) that suggests that the knowledge account of assertion provides the basis of an argument in favor of contextualism. I discuss the knowledge account as the conjunction of two theses—a thesis claiming that knowledge is sufficient to license assertion KA and one claiming that knowledge is necessary to license assertion AK. Adducing evidence from Stalnaker’s account of assertion, from conversational practice, and from arguments often raised (...) in favor of the knowledge account, I suggest that neither the AK nor the KA theses are plausible. That is, I argue that the knowledge account of assertion to which DeRose appeals is in fact not suitable as an account of assertion. Given that DeRose’s argument stands and falls with the knowledge account, I claim that the argument therefore fails. (shrink)

Le dialogue pseudo-platonicien Epinomis retrace une image assez exacte de ce que fut le mouvement intellectuel de l’Académie après la mort de Platon. Les traits suivants peuvent définir ses principales directions : 1° substitution de la théorie du nombre à la doctrine des Idées ; 2° effort pour réaliser l’unité de la science et constituer une hiérarchie des sciences, qui a pour fondement les mathématiques et pour couronnement l’astronomie ; 3° tendance mystique qui consiste à chercher dans la science suprême (...) un appui pour les aspirations religieuses. (shrink)

I. De Descrates à Chateaubriand.--II. Les temps modernes.

Various critiques of important analytic thinkers made by Alain Badiou in the late 1960s have been largely overlooked by continental philosophers and entirely overlooked by analytic philosophers. This paper looks in detail at Badiou’s 1969 essay ‟Mark and Lack,” providing an exposition and clarification of his direct and sustained critique of Gottlob Frege’s supposed ideological philosophical commitments. Badiou’s intellectual context is analyzed in some detail, not only explaining his theoretical debt to his then-master Louis Althusser, but also clarifying his understandings (...) of the notions of ‟the scientific” and ‟the ideological” in light of the projects of Gaston Bachelard and Georges Canguilhem. A philosophical exposition of Badiou’s point-by-point critique of Frege’s conception of logic follows. Finally, the paper concludes with an analysis of the more general relevance of Badiou’s half-century-old critiques in light of developments in contemporary analytic metaphysics, especially those indebted to W. V. O. Quine and Donald Davidson. In essence, Davidson’s Fregean reconfiguration of Tarski’s work on truth places contemporary analytic metaphysics within the scope of what Badiou directly criticizes. It is suggested that Badiou’s critique find a place in discussions of analytic metaphysics. (shrink)

According to François Laruelle, French thought has been unduly influenced by corpuscular or atomist thinking, yet Laruelle has himself employed key atomist terms—in particular, that of the clinamen or swerve—in framing his own style of thought. This essay looks at this tension between atomism and anti-atomism in Laruelle’s thought, taking the measure of his contribution to a larger stream of postwar French thinking about the relevance and stakes of ancient atomism. Its contention is that Laruelle subtly but really outlines a (...) quantum theoretical resumption of ancient atomist philosophy—one that deserves closer attention and comparative study in the larger context of French philosophical interest in the atomists. A first section of the paper briefly describes Laruelle’s general project, along with his claim that he differs from his contemporaries because he uniquely escapes the dangers of what he calls corpuscular thought. A second section addresses the apparent tension between Laruelle’s claim to produce a non-corpuscular thinking and his consistent recent use of the atomist image of the clinamen, ultimately arguing that Laruelle sides with the clinamen against two forms of corpuscularity supposedly avoided by the clinamen itself but nonetheless usefully embodied in atomist thought. The final section of the paper draws up in preliminary terms a comparison between Laruelle’s understanding of his relationship to atomism and that of his contemporaries, focusing in particular on Alain Badiou. (shrink)

Volume 19, Issue 6, June 2019, Page 66-68.