Offers a comprehensive and accessible exploration of the scope and importance of Gottlob Frege's work.

This book is an expanded version of Joan Weiner's introduction to Frege's work in the Oxford University Press ‘Past Masters’ series published in 1999. The earlier book had chapters on Frege's life and character, his basic project, his new logic, his definitions of the numbers, his 1891 essay ‘Function and concept’, his 1892 essays ‘On Sinn and Bedeutung’ and ‘On concept and object’, the Grundgesetze der Arithmetik and the havoc wreaked by Russell's paradox, and a final brief chapter on (...) Frege's influence. To this, Weiner has added two further chapters on Frege's dispute with Hilbert on the foundations of geometry and on the three late essays of his ‘Logical investigations’. There is little change to the content of the earlier chapters, but they have been divided into sections, each with its own heading, which makes it easier to find one's way around.With the two additional chapters, the book provides an excellent introduction to Frege's work from his earliest Begriffsschrift , which gives the first presentation of his new logic, to his three late essays , which expound his views on logic, truth, and thought. As in the earlier version, the focus is on the logicist project that dominated Frege's career: the attempt to demonstrate that arithmetic is reducible to logic. In all her writings on Frege, Weiner has been particularly sensitive to the philosophical …. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:February 19, 2011 (11:48 am) E:\CPBR\RUSSJOUR\TYPE3002\russell 30,2 040 red.wpd Reviews 161 7 In, respectively, PaciWsm in Britain and Semi-Detached Idealists: the British Peace Movement and International Relations (Oxford: Oxford U. P., 2000). 8 See Monk 2: Chap. 13. FUNCTIONS OR PROPOSITIONAL FUNCTIONS? Alexander Paul Bozzo Philosophy / Marquette U. Milwaukee, wi 53233, usa [email protected] Michael Potter and Tom Ricketts, eds. The Cambridge Companion to Frege. Cambridge, uk: Cambridge (...) U. P., 2010. Pp. vii, 630. isbn 978-0-521-62479-4 (pb). £57.00; £21.99 (pb). us$38.99 (pb). February 19, 2011 (11:48 am) E:\CPBR\RUSSJOUR\TYPE3002\russell 30,2 040 red.wpd 162 Reviews 1 Frege: Philosophy of Mathematics (Cambridge, ma: Harvard U. P., 1991), p. 111. The paragraph contains an expression of Frege’s Context Principle and the need for Hume’s Principle as a criterion of identity in the deWnition of number. 2 There are in fact Wve stated goals. The others are: (iii) to serve as a reference work for students and non-specialists, (iv) to provide a route into the study of Frege historically and to any relevant contemporary concerns in the philosophies of logic, language, mathematics, and mind, and (v) to provide, for new readers, the most convenient detailed guide to Frege currently available. Gottlob Frege is widely recognized as one of the chief progenitors of mathematical logic and philosophy of languagez—zindeed, the importance attributed to Frege’s innovations is such that Michael Dummett, when reXecting on§62 of Frege’s Die Grundlagen der Arithmetik, feels compelled to remark that the paragraph therein is “arguably the most pregnant philosophical paragraph ever written.”1 Whether or not one agrees with Dummett on this point, the magnitude of Frege’s inXuence on the current philosophical landscape is incontestable. Frege revolutionized the then dominant Aristotelian conception of logic, introducing a formal language now recognized as the predicate calculus. Central to this end were Frege’s insights on quantiWcation, the notation that expressed it, the logicist project, and the extension of mathematical notions like function and argument to natural language. The long-awaited Cambridge Companion to Frege is a compendium of Fregean scholarship that rigorously explores these and similar topics; editors Thomas Ricketts and Michael Potter have compiled a comprehensive collection of fourteen essays that individually provide focused appraisals of a number of Frege’s most substantial insights. On the advice of this journal’s editor, I have limited my review to the connections (or rather dissimilarities ) that exist between Frege and Russell, relying exclusively on Peter Hylton ’s contribution to the collection, “Frege and Russell”. Following a brief consideration of the volume as a whole, I move immediately into a detailed explication of Hylton’s analysis. The volume includes among its goals the following two aims: (i) to provide, for advanced students and specialists, a conspectus of recent interpretation of Frege, and (ii) to dispel the intimidation felt by readers who confront a diUcult thinker.2 I single out these ambitions because they most clearly represent the volume’s strengths and shortcomings. Enthusiasts of Frege will not be disappointed by the multitude of rigorously and technically written essays, essays that contribute substantially and originally to the collective understanding of Frege and his work. For instance, Thomas Ricketts provides a thoughtful and thorough analysis—an analysis that moves well beyond mere explication—of Frege’s concept/object distinction, in particular its relevance for Frege’s Context Principle and logicism more generally. Similarly, Richard Heck addresses a number of central yet largely unexplored issues pertaining to the overall signiWcance of February 19, 2011 (11:48 am) E:\CPBR\RUSSJOUR\TYPE3002\russell 30,2 040 red.wpd Reviews 163 3 I strongly encourage that non-specialists augment The Cambridge Companion to Frege with Joan Weiner’s Frege Explained: from Arithmetic to Analytic Philosophy (Chicago : Open Court, 2004), one of the best available introductory texts on Frege. 4 The essay in fact was available as early as 2005 in Hylton’s Propositions, Functions, and Analysis: Selected Essays on Russell’s Philosophy (New York, ny: Oxford U. P., 2005). The editors of The Cambridge Companion to Frege partially... (shrink)

Naturphilosophie und Metaphysik scheinen zwei unterschiedliche, ja, sich ausschließende philosophische Ansätze zu sein. Bestimmt man aber Naturphilosophie als Metaphysik der Natur im Sinne des Projekts, im Ausgang von den naturwissenschaftlichen Erkenntnissen zu einer kohärenten und vollständigen Sicht der Welt zu gelangen, ergibt sich eine neue und überraschende Konstellation. Die Bezugnahme auf die Naturwissenschaften verleiht der Metaphysik einerseits die Berechtigung dazu, revisionär zu sein, das heißt, Erkenntnisansprüche, die aus dem alltäglichen Weltverständnis stammen, zu revidieren. Andererseits ist eine solche Metaphysik ebenso hypothetisch (...) wie die Wissenschaften selbst. Michael Esfeld zeigt zunächst, wie man in diesem Rahmen einen wissenschaftlichen Realismus vertreten kann, und begründet dann so umstrittene Thesen wie die eines vierdimensionalen Blockuniversums mit Ereignissen und Prozessen statt Substanzen oder die eines naturphilosophischen Holismus und Strukturenrealismus statt eines Atomismus und rehabilitiert die Idee notwendiger Verbindungen in der Natur. (shrink)

Recent epistemology has reflected a growing interest in issues about the value of knowledge and the values informing epistemic appraisal. Is knowledge more valuable that merely true belief or even justified true belief? Is truth the central value informing epistemic appraisal or do other values enter the picture? Epistemic Value is a collection of previously unpublished articles on such issues by leading philosophers in the field. It will stimulate discussion of the nature of knowledge and of directions that might be (...) taken by the theory of knowledge. The contributors are Jason Baehr, Michael Brady, Berit Brogaard, Michael DePaul, Pascal Engel, Catherine Elgin, Alvin Goldman, John Greco, Stephen Grimm, Ward Jones, Martin Kusch, Jonathan Kvanvig, Michael Lynch, Erik Olsson, Wayne Riggs and Matthew Weiner. (shrink)

It’s not implausible to think that whenever I have a justified noninferential belief that p, it is caused by a seeming that p. It’s also tempting to think that something contributes to the justification of my belief only if I hold my belief because of that thing. Thus, given that many of our noninferential beliefs are justified and that we hold them because of seemings, one might be inclined to hold a view like Phenomenal Conservatism, according to which seemings play (...) a crucial role—perhaps the only crucial role—in the justification of our noninferential beliefs. But Phenomenal Conservatism seems to conflict, in a number of ways, with externalist accounts of justification. As a result, the attractiveness of the intuitions appealed to in support of views like Phenomenal Conservatism present something of a challenge to externalism. The purpose of this paper is to deal with that challenge by developing and defending an externalist-friendly account of the role of seemings in the formation and justification of our noninferential beliefs—an account that incorporates what is attractive in views like Phenomenal Conservatism. Because this externalist-friendly account is compatible with both externalist accounts of justification and the plausible elements of views like Phenomenal Conservatism, the challenge to externalism inspired by such views is thereby undermined. (shrink)

We argue that thoughts are structures of concepts, and that concepts should be individuated by their origins, rather than in terms of their semantic or epistemic properties. Many features of cognition turn on the vehicles of content, thoughts, rather than on the nature of the contents they express. Originalism makes concepts available to explain, with no threat of circularity, puzzling cases concerning thought. In this paper, we mention Hesperus/Phosphorus puzzles, the Evans-Perry example of the ship seen through different windows, and (...) Mates cases, and we believe that there are many additional applications. (shrink)

Contemporary psycholinguistic models place significant emphasis on the cognitive processes involved in the acquisition, recognition, and production of language but neglect many issues related to the representation of language-related information in the mental lexicon. In contrast, a central tenet of network science is that the structure of a network influences the processes that operate in that system, making process and representation inextricably connected. Here, we consider how the structure found across phonological networks of several languages from different language families may (...) influence language processing as we age and experience diseases that affect cognition during the typical and atypical acquisition of new words, during typical perception and production of speech in adults, and during language change over time. We conclude that the network science approach may not only provide insights into specific language processes but also provide a way to connect the work from these domains, which are becoming increasingly balkanized. (shrink)

Many Sides is the first full-length study of Protagorean antilogic, an argumentative practice with deep roots in rhetorical history and renewed relevance for contemporary culture. Founded on the philosophical relativism of Protagoras, antilogic is a dynamic rather than a formal approach to argument, focused principally on the dialogical interaction of opposing positions (anti-logoi) in controversy. In ancient Athens, antilogic was the cardinal feature of Sophistic rhetoric. In Rome, Cicero redefined Sophistic argument in a concrete set of dialogical procedures. In turn, (...) Quintilian inherited this dialogical tradition and made it the centrepiece of his own rhetorical practice and pedagogy. Many Sides explores the history, theory, and pedagogy of this neglected rhetorical tradition and, by appeal to recent rhetorical and philosophical theory, reconceives the enduring features of antilogical practice in a dialogical approach to argumentation especially suited to the pluralism of our own age and the diversity of modern classrooms. (shrink)

Intuitionism can be seen as a verificationism restricted to mathematical discourse. An attempt to generalize intuitionism to empirical discourse presents various challenges. One of those concerns the logical and semantical behavior of what has been called ' empirical negation'. An extension of intuitionistic logic with empirical negation was given by Michael De and a labelled tableaux system was there shown sound and complete. However, a Hilbert-style axiom system that is sound and complete was missing. In this paper we provide (...) the missing axiom system which is shown sound and complete with respect to its intended semantics. Along the way we consider some further applications of empirical negation. (shrink)

I consider two threats to the idea that on-line intelligent behaviour (the production of fluid and adaptable responses to ongoing sensory input) must or should be explained by appeal to neurally located representations. The first of these threats occurs when extra-neural factors account for the kind of behavioural richness and flexibility normally associated with representation-based control. I show how this anti-representational challenge can be met, if we apply the thought that, to be a representational system, an action-oriented neural system must (...) not only be the source of at least some of the observed behavioural richness and flexibility, it must also feature two architectural traits, namely arbitrariness and homuncularity. Unfortunately, however, this solution opens the door to our second threat to representation. The homuncularity condition will not be met by any system in which the causal contribution of each component is massively context-sensitive and variable over time. I end by discussing the empirical bet that biological nervous systems will not exhibit this style of causation. (shrink)

Chapter 1 presents BS, a basic syllogistic system based on Aristotle's logic, in natural deduction form. Chapters 2 and 3 treat the metatheory of BS: consitency, soundness, independence, and completeness. Chapter 4 and 5 deal with syllogistic and, in turn, propositional and predicate logic, chapter 6 is on existential import, chapter 7 on subject and predicate and chapter 8 on classes. Chapter 9 adds negative variables to BS, and proves its soundness and completeness.

Against arealist background, the paper starts by demonstrating the horror of the very popular doctrine, “Worldmaking”, according to which a known world is partly constructed by our imposition of concepts. The rest of the paper aims to make worldmaking hard. (i) It rejects the usual episternological and semantic paths to Worldmaking arguing that they use the wrong methodology and proceed in the wrong direction. (ii) It considers the relation between Worldmaking and the response-dependency theory of concepts. Philip Pettit has proposed (...) a global version of that theory: all our concepts are response-dependent. The paper argues that this theory provides an example of the semantic path to Worldmaking and for that reason alone should be rejected. (shrink)

Computational complexity theory is a branch of computer science dedicated to classifying computational problems in terms of their difficulty. While computability theory tells us what we can compute in principle, complexity theory informs us regarding our practical limits. In this chapter I argue that the science of \emph{quantum computing} illuminates complexity theory by emphasising that its fundamental concepts are not model-independent, but that this does not, as some suggest, force us to radically revise the foundations of the theory. For model-independence (...) never has been essential to those foundations. The fundamental aim of complexity theory is to describe what is achievable in practice under various models of computation for our various practical purposes. Reflecting on quantum computing illuminates complexity theory by reminding us of this, too often under-emphasised, fact. (shrink)

Philosophical Issues, Volume 31, Issue 1, Page 280-298, October 2021.

What does the growing tide of displaced persons today teach us about the ongoing paradoxes of human rights regimes, which rely on the particular sovereignty of nation-states for their constitution and application but are framed and normatively justified as universal? Working with Arendt’s defense of ‘the right to have rights’ in response to the problem of statelessness which is the practical lynchpin of these historical and theoretical tensions, I specify that and why any person on earth, regardless of their legal (...) status as a national or resident or non-resident alien, can legitimately expect two things from the political community in which they reside: hospitality and membership. (shrink)

This interview took place through email during October-November, 2019. Michael: It’s a real pleasure to engage you in conversation. You were a foundation member of PESA and someone who in the pre-I...

Leo Strauss and his alleged political influence regarding the Iraq War have in recent years been the subject of significant media attention, including stories in the _Wall Street Journal _and _New York Times._ _Time_ magazine even called him “one of the most influential men in American politics.” With _The Truth about Leo Strauss_, Michael and Catherine Zuckert challenged the many claims and speculations about this notoriously complex thinker. Now, with _Leo Strauss and the Problem of Political Philosophy_, they turn (...) their attention to a searching and more comprehensive interpretation of Strauss’s thought as a whole, using the many manifestations of the “problem of political philosophy” as their touchstone. For Strauss, political philosophy presented a “problem” to which there have been a variety of solutions proposed over the course of Western history. Strauss’s work, they show, revolved around recovering—and restoring—political philosophy to its original Socratic form. Since positivism and historicism represented two intellectual currents that undermined the possibility of a Socratic political philosophy, the first part of the book is devoted to Strauss’s critique of these two positions. Then, the authors explore Strauss’s interpretation of the history of philosophy and both ancient and modern canonical political philosophers, including Plato, Aristotle, Machiavelli, and Locke. Strauss’s often-unconventional readings of these philosophers, they argue, pointed to solutions to the problem of political philosophy. Finally, the authors examine Strauss’s thought in the context of the twentieth century, when his chief interlocutors were Schmitt, Husserl, Heidegger, and Nietzsche. The most penetrating and capacious treatment of the political philosophy of this complex and often misunderstood thinker, from his early years to his last works, _Leo Strauss and the Problem of Political Philosophy_ reveals Strauss’s writings as an attempt to show that the distinctive characteristics of ancient and modern thought derive from different modes of solving the problem of political philosophy and reveal why he considered the ancient solution both philosophically and politically superior. (shrink)

For many years now, much of BonJour’s work has focused on ways of developing a dilemma he finds in the work of Wilfred Sellars. In his earlier work, BonJour argued against internalist foundationalism using this Sellarsian dilemma. But he has since switched his allegiance and now wants to offer a solution to this dilemma on behalf of internalist foundationalism. He believes that if his solution fails, internalist foundationalism is in serious trouble. I agree with that conditional and my aim in (...) sections 1-3 will be to argue that his solution does fail. In the final section, I will briefly defend externalism against one of BonJour’s objections to it. (shrink)

Written by well-known professor and author Michael Boylan, Morality and Global Justice is an accessible examination of the moral and normative underpinnings of ...

On December 10th, 1947, John von Neumann wrote to the Spanish translator of his Mathematical Foundations of Quantum Mechanics: 1Your questions on the nature of mathematical physics and theoretical physics are interesting but a little difficult to answer with precision in my own mind. I have always drawn a somewhat vague line of demarcation between the two subjects, but it was really more a difference in distribution of emphases. I think that in theoretical physics the main emphasis is on the (...) connection with experimental physics and those methodological processes which lead to new theories and new formulations, whereas mathematical physics deals with the actual solution and mathematical execution of a theory which is assumed to be correct per se, or assumed to be correct for the sake of the discussion. In other words, I would say that theoretical physics deals rather with the formation and mathematical physics rather with the exploitation of physical theories. However, when a new theory has to be evaluated and compared with experience, both aspects mix. (shrink)

Nuno Venturinha holds that the contextualist epistemology adumbrated in Wittgenstein’s On Certainty--the most powerful response to philosophical skepticism yet developed-- falls short of providing a complete answer to Cartesian radical skepticism about knowledge of the external world. I argue that Venturinha underestimates the range and complexity of Wittgenstein’s epistemological. He does so because he reads Wittgenstein along the lines of so-called ‘hinge epistemology’. Hinge epistemology indeed fails as a diagnosis of skepticism. But it also fails as a reading of Wittgenstein. (...) A more adequate understanding of Wittgenstein suggests that Venturinha’s pessimistic conclusion can be avoided. (shrink)

Examines the dialogues from Plato's early and middle periods and illustrates the similarities and differences between Plators"s concept of craft knowledge and ...