Michael Dummett, philosopher and social critic, is also one of the sharpest and most prominent commentators and campaigners for the fair treatment of immigrants and refugees in Britain and Europe. This book insightfully draws together his thoughts on this major issue for the first time. Exploring the confused and often highly unjust thinking about immigration, Dummett then carefully questions the principles and justifications governing state policies, pointing out that they often conflict with the rights of refugees as laid down (...) by the Geneva Convention. With compelling and often moving examples, On Immigration and Refugees points a new way forward for humane thinking and practice about a problem we cannot afford to ignore. (shrink)

It is not a fundamental human right to live wherever one would most like to be. We have to ask when a state should admit people not its citizens wishing to enter and settle within its territory. To exclude someone from entry to a country where he wishes to settle infringes his liberty. When anybody's liberty is infringed or curtailed the onus of proof lies upon those who claim a right to infringe or curtail it, other things being equal. This (...) paper argues that there are two reasonable grounds for refusing entry to would-be immigrants. First, in order to avoid genuine overpopulation; and second, to protect vulnerable cultures being submerged by large numbers of people of a more robust culture. Neither of these restrictions applies in the case of Britain and the paper concludes by demanding an immediate liberalisation of immigration laws and immediate public recognition by government of the benefits of immigration and determined discouragement of xenophobic propaganda against it. (shrink)

Michael Dummett, eminent filosoof en scherpzinnig maatschappijcriticus, pleit al vele jaren voor een eerlijke behandeling van immigranten en vluchtelingen in Europa. In dit inzichtelijke boek heeft hij voor de eerste keer al zijn gedachten over deze belangrijke kwestie gebundeld. Na een eerste verkenning van de verwarde en vaak zeer onrechtvaardige opvattingen over immigratie, onderwerpt Dummett de principes en rechtvaardigingen van het desbetreffende overheidsbeleid aan een nauwkeurig onderzoek, waarbij hij erop wijst dat dit beleid vaak in strijd is met de (...) rechten van vluchtelingen zoals die in het Verdrag van Genève zijn neergelegd. Aan de hand van confronterende en vaak aangrijpende voorbeelden wijst Vluchtelingen en immigratie de weg naar een nieuwe, meer menswaardige benadering van een probleem dat wij niet mogen negeren. (shrink)

The Institute Vienna Circle held a conference in Vienna in 2003, Cambridge and Vienna – Frank P. Ramsey and the Vienna Circle, to commemorate the philosophical and scientific work of Frank Plumpton Ramsey (1903–1930). This Ramsey conference provided not only historical and biographical perspectives on one of the most gifted thinkers of the Twentieth Century, but also new impulses for further research on at least some of the topics pioneered by Ramsey, whose interest and potential are greater than ever. Ramsey (...) did pioneering work in several fields, practitioners of which rarely know of his important work in other fields: philosophy of logic and theory of language, foundations of mathematics, mathematics, probability theory, methodology of science, philosophy of psychology, and economics. There was a focus on the one topic which was of strongest mutual concern to Ramsey and the Vienna Circle, namely the question of foundations of mathematics, in particular the status of logicism. Although the major scientific connection linking Ramsey with Austria is his work on logic, to which the Vienna Circle dedicated several meetings, certainly the connection which is of greater general interest concerns Ramsey's visits and discussions with Wittgenstein. Ramsey was the only important thinker to actually visit Wittgenstein during his school-teaching career in Puchberg and Ottertal in the 1920s, in Lower Austria; and later, Ramsey was instrumental in getting Wittgenstein positions at Cambridge. (shrink)

Devitt (1983) "Dummett's Anti-Realism".

Quantification is haunted by the specter of paradoxes. Since Russell, it has been a persistent idea that the paradoxes show what might have appeared to be absolutely unrestricted quantification to be somehow restricted. In the contemporary literature, this theme is taken up by Dummett (1973, 1993) and Parsons (1974a,b). Parsons, in particular, argues that both the Liar and Russell’s paradoxes are to be resolved by construing apparently absolutely unrestricted quantifiers as appropriately restricted.

The aims of this paper are twofold: firstly, to say something about that philosophy of mathematics known as 'intuitionism' and, secondly, to fit these remarks into a more general message for the philosophy of mathematics as a whole. What I have to say on the first score can, without too much inaccuracy, be compressed into two theses. The first is that the intuitionistic critique of classical mathematics can be seen as based primarily on epistemological rather than on meaning-theoretic considerations. The (...) second is that the intuitionist's chief objection to the classical mathematician's use of logic does not center on the use of particular logical principles (in particular, the law of excluded middle and its ilk). Rather on the role the classical mathematician assigns (or at least extends) generally (i.e. regardless of the particular principles used) to the use of logic in the production mathematical proofs. Thus, the intuitionist critique of logic that we shall be presenting is far more radical than that which has commonly been presented. -/- Concerning the second, more general, theme, my claim is this: some restriction of the role of logical inference in mathematical proof such as that mentioned above is necessary if one is to account for the seeming difference in the epistemic conditions of provers whose reasoning is based on genuine insight into the subject-matter being investigated, and would-be provers whose reasoning is based not on such insight, but rather on principles of inference which hold of every subject-matter indifferently. (shrink)

Metaphysics: Contemporary Readings is a comprehensive anthology that draws together leading philosophers writing on the major themes in Metaphysics. Chapters appear under the headings: Universals Particulars Modality and Possible Worlds Causation Time Persistence Realism and Anti-Realism Each section is prefaced by an introductory essay by the editor which guides students gently into each topic. Articles by the following leading philosophers are included: Allaire, Anscombe, Armstrong, Black, Broad, Casullo, Dummett, Ewing, Heller, Hume, Kripke, Lewis, Mackie, McTaggart, Mellor, Merricks , Parfit, Plantinga, (...) Price, Prior, Putnam, Quine, Russell, Smart, Swinburne, Taylor , Van Cleve, van Inwagen, Williams Featuring a new section on causation, this new edition is highly accessible and provides a broad-ranging exploration of the subject. Ideal for any philosophy student, this reader will prove essential reading for any metaphysics course. The sections and selections of readings have been updated to complement Michael Loux's textbook Metaphysics: A Contemporary Introduction , third edition. (shrink)

An extension of intuitionism to empirical discourse, a project most seriously taken up by Dummett and Tennant, requires an empirical negation whose strength lies somewhere between classical negation (‘It is unwarranted that. . . ’) and intuitionistic negation (‘It is refutable that. . . ’). I put forward one plausible candidate that compares favorably to some others that have been propounded in the literature. A tableau calculus is presented and shown to be strongly complete.

Truth’s universal knowability entails its discovery. This threatens antirealism, which is thought to require it. Fortunately, antirealism is not committed to it. Avoiding it requires adoption (and extension) of Dag Prawitz’s position in his long-term disagreement with Michael Dummett on the notion of provability involved in intuitionism’s identification of it with truth. Antirealism (intuitionism generalized) must accommodate a notion of lost-opportunity truth (a kind of recognition-transcendent truth), and even truth consisting in the presence of unperformable verifications. Dummett’s position cannot (...) abide this, while Prawitz’s can. Antirealism’s epistemic notion of truth derives from general features of its meaning theory, not from a universal knowability principle. (shrink)

The issue of realism about the physical world is distinct from the semantic issue of correspondence truth. So it is an aberration to identify the two issues (Dummett), to dismiss the realism issue out of hostility to correspondence truth (Rorty, Fine), to think that that issue is one of interpretation, or to argue against realism by criticizing various claims about truth and reference (Putnam, Laudan). It is also an aberration to identify realism with nonskepticism, truth-as-the-aim-of-science, or scientific convergence. Realism is (...) an overarching metaphysical issue which should be settled before any of these epistemic and semantic issues. (shrink)

This collection concentrates on vital themes from Michael Dummett, one of the most influential and creative analytic philosophers of our time. The contributors, who include some of Dummett's distinguished former students, critically reflect on various concerns of Dummett's ground-breaking work in philosophy of language, metaphysics, and philosophy of mathematics and logic. The essays direct towards aspects of Dummett's pioneering work in the history of analytical philosophy, particularly his interpretations of the works of Frege and of Wittgenstein, which in conjunction (...) with Dummett’s own highly original ideas on truth and meaning have shaped decisive contemporary debates concerning notably the distinction between realism and anti-realism. Further, the volume includes a cheerfully serious excursion into popular philosophy by Dummett himself and reveals less known facets of Dummett's many-sided work and activities such as his political philosophy of immigration and asylum, and beyond that, his untiring and warm-hearted campaign for racial justice and humanity. Contributors: Michael Dummett, Eva Picardi, Crispin Wright, Timothy Williamson, Ian Rumfitt, Daniel Isaacson, Dag Prawitz, Dale Jacquette, Alex Burri, Michael Frauchiger. (shrink)

In this chapter, the author offers a selective critical history in which he traces the difference between the tendency which Michael Dummett represents and the philosophers among whom Timothy Williamson is naturally placed to a difference in metaphysics which has much longer roots. He suggests that the ultimate source of the kind of role Dummett gives to thought is Hume's skeptical view of necessity, with its famous consequences for metaphysics. The philosophy of language is the key to the most (...) fundamental philosophy. The author argues that the ordinary language tradition had its origins, at least, in anti‐realism about modality, and continued throughout its history to take an attitude to philosophy in general, and metaphysics in particular, which is hard to justify without that anti‐realism ‐ even if it is characteristic of the philosophers in this tradition that they did not generally attempt to justify it. (shrink)

del's appeal to mathematical intuition to ground our grasp of the axioms of set theory, is notorious. I extract from his writings an account of this form of intuition which distinguishes it from the metaphorical platonism of which Gödel is sometimes accused and brings out the similarities between Gödel's views and Dummett's.

In this chapter, the author offers a selective critical history in which he traces the difference between the tendency which Michael Dummett represents and the philosophers among whom Timothy Williamson is naturally placed to a difference in metaphysics which has much longer roots. He suggests that the ultimate source of the kind of role Dummett gives to thought is Hume's skeptical view of necessity, with its famous consequences for metaphysics. The philosophy of language is the key to the most (...) fundamental philosophy. The author argues that the ordinary language tradition had its origins, at least, in anti‐realism about modality, and continued throughout its history to take an attitude to philosophy in general, and metaphysics in particular, which is hard to justify without that anti‐realism ‐ even if it is characteristic of the philosophers in this tradition that they did not generally attempt to justify it. (shrink)

First published in 1976, the _Dictionary of Philosophy_ has established itself as the best available text of its kind, explaining often unfamiliar, complicated and diverse terminology. Thoroughly revised and expanded, this fourth edition provides authoritative and rigorous definitions of a broad range of philosophical concepts. Concentrating on the Western philosophical tradition,_ The Routledge Dictionary of Philosophy_ offers an illuminating and informed introduction to the central issues, ideas and perspectives in core fields such as metaphysics, epistemology, and logic. It includes concise (...) biographical entries for more than one hundred major philosophers, from Plato and Aristotle through to contemporary figures such as Dummett, McDowell, Parfit and Singer. All major entries are followed by helpful suggestions for further reading, including web links, and contain extensive cross-referencing to aid access and comprehension. This edition also features a brand new guide to the most useful philosophy sites on the internet. _The Routledge Dictionary of Philosophy_ is an invaluable and up-to-date resource for all students of philosophy. (shrink)

THE central idea of modern empiricism has been that, if there is to be such a thing as justification at all, empirical knowledge must be seen as resting on experiential "foundations." To claim that knowledge rests on foundations is to claim that there is a privileged class of beliefs the members of which are "intrinsically credible" or "directly evident" and which are able, therefore, to serve as ultimate terminating points for chains of justification. An important development in current epistemology has (...) been a revival of the debate between philosophers who favor this conception of knowledge and those who think that an adequate account of justification can be given in terms of "coherence." Thus Dummett, Pollock, and Quinton, in varying degrees, have based their recent defenses of traditional empiricist views on what they take to be the clear untenability of coherentist alternatives. Harman and Lehrer, on the other hand, have tried to show that defensible versions of the coherence theory can be developed. (shrink)

Michael Dummett argued that Frege was a realist while Hans Sluga countered that he was an objective idealist in the rationalist tradition of Kant and Lotze. Sluga ties Frege's idealism to the context principle which he argues Frege never gave up. It is argued that Sluga has correctly interpreted the pre?1891 Frege while Dummett is correct concerning the later period. It is also claimed that the context principle was dropped prior to 1891 to be replaced by the doctrine of (...) unsaturated entities. (shrink)

"Content and Comportment argues persuasively that the answer to some long-standing questions in epistemology and metaphysics lies in taking up the neglected question of the role of our bodily activity in establishing connections between representational states?knowledge and belief in particular?and their objects in the world. It takes up these ideas from both current mainstream analytic philosophy?Frege, Dummett, Davidson, Evans?and from mainstream continental work?Heidegger and his commentators and critics?and bings them together successfully in a way that should surprise only those who (...) persist in maintaining this barren dichotymization of the field."?Anthony Appiah , Princeton University. (shrink)

Metaphysics: Contemporary Readings is a comprehensive anthology that draws together leading philosophers writing on the major themes in Metaphysics. Chapters appear under the headings: Universals Particulars Modality and Possible Worlds Causation Time Persistence Realism and Anti-Realism. Each section is prefaced by an introductory essay by the editor which guides students gently into each topic. Articles by the following leading philosophers are included: Allaire, Anscombe, Armstrong, Black, Broad, Casullo, Dummett, Ewing, Heller, Hume, Kripke, Lewis, Mackie, McTaggart, Mellor, Merricks , Parfit, Plantinga, (...) Price, Prior, Putnam, Quine, Russell, Smart, Swinburne, Taylor , Van Cleve, van Inwagen, Williams. Featuring a new section on causation, this new edition is highly accessible and provides a broad-ranging exploration of the subject. Ideal for any philosophy student, this reader will prove essential reading for any metaphysics course. The sections and selections of readings have been updated to complement Michael Loux’s textbook Metaphysics: A Contemporary Introduction , third edition. (shrink)

This paper discusses Michael Dummett’s attempt to base the use of intuitionistic logic in mathematics on a proof-conditional semantics. This project is shown to face significant obstacles resulting from the existence of variants of standard intuitionistic logic. In order to overcome these obstacles, Dummett and his followers must give an intuitionistically acceptable completeness proof for intuitionistic logic relative to the BHK interpretation of the logical constants, but there are reasons to doubt that such a proof is possible. The paper (...) concludes by proposing an alternative way of thinking about why one should use intuitionistic logic when doing mathematics. (shrink)

Argues, contra Dummett, that the platonist need not be any more committed than the intuitionist to the notion that there are arithmetical truths in principle inaccessible to any finite intelligence.

One of Michael Dummett's most striking contributions to the philosophy of mathematics is an argument to show that the correct logic to apply in mathematical reasoning is not classical but intuitionistic. In this article I wish to cast doubt on Dummett's conclusion by outlining an alternative, motivated by consideration of a well-known result of Kurt Gödel, to the standard view of the relationship between classical and intuitionistic arithmetic. I shall suggest that it is hard to find a perspective from (...) which to arbitrate between the competing views. (shrink)

Argues that classical arithmetic can be viewed as a proper part of intuitionistic arithmetic. Suggests that this largely neutralizes Dummett's argument for intuitionism in the case of arithmetic.

We enrich intuitionistic logic with a lax modal operator and define a corresponding intensional enrichment of Kripke models M = (W, , V) by a function T giving an effort measure T(w, u) {} for each -related pair (w, u). We show that embodies the abstraction involved in passing from true up to bounded effort to true outright. We then introduce a refined notion of intensional validity M |= p : and present a corresponding intensional calculus iLC-h which gives a (...) natural extension by lax modality of the well-known G: odel/Dummett logic LC of (finite) linear Kripke models. Our main results are that for finite linear intensional models L the intensional theory iTh(L) = {p : | L |= p : } characterises L and that iLC-h generates complete information about iTh(L).Our paper thus shows that the quantitative intensional information contained in the effort measure T can be abstracted away by the use of and completely recovered by a suitable semantic interpretation of proofs. (shrink)

We enrich intuitionistic logic with a lax modal operator ○ and define a corresponding intensional enrichment of Kripke models M = (W, ⊑, V) by a function T giving an effort measure T(w, u) ∈ \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $${\mathbb{N}} \cup$$ \end{document} {∞} for each ⊑-related pair (w, u). We show that ○ embodies the abstraction involved in passing from “ϕ true up to bounded effort” to “ϕ true outright”. We then introduce a refined (...) notion of intensional validityM |= p : ϕ and present a corresponding intensional calculus iLC-h which gives a natural extension by lax modality of the well-known G: odel/dummett logic LC of (finite) linear Kripke models. Our main results are that for finite linear intensional models L the intensional theory iTh(L) = {p : ϕ | L |= p : ϕ} characterises L and that iLC-h generates complete information about iTh(L).Our paper thus shows that the quantitative intensional information contained in the effort measure T can be abstracted away by the use of ○ and completely recovered by a suitable semantic interpretation of proofs. (shrink)

"Content and Comportment argues persuasively that the answer to some long-standing questions in epistemology and metaphysics lies in taking up the neglected question of the role of our bodily activity in establishing connections between representational states—knowledge and belief in particular—and their objects in the world. It takes up these ideas from both current mainstream analytic philosophy—Frege, Dummett, Davidson, Evans—and from mainstream continental work—Heidegger and his commentators and critics—and bings them together successfully in a way that should surprise only those who (...) persist in maintaining this barren dichotymization of the field.". (shrink)

The classificatory concept of analytic philosophy cannot fruitfully be given an analytic definition, nor is it a family-resemblance concept. Dummett's contention that it is 'the philosophy of thought' whose main tenet is that an account of thought is to be attained through an account of language is rejected for historical and analytic reasons. Analytic philosophy is most helpfully understood as a historical category earmarking a leading trend in twentieth-century philosophy originating in Cambridge. Its first three phases, viz. Cambridge Platonist pluralism, (...) logical atomism, and logical positivism are adumbrated and their interrelations explained. Wittgenstein is argued to have originated the 'linguistic turn' that characterizes the latter two. (shrink)

Peter Abelard (1079–1142 ce) was the most wide‐ranging philosopher of the twelfth century. He quickly established himself as a leading teacher of logic in and near Paris shortly after 1100. After his affair with Heloise, and his subsequent castration, Abelard became a monk, but he returned to teaching in the Paris schools until 1140, when his work was condemned by a Church Council at Sens. His logical writings were based around discussion of the “Old Logic”: Porphyry's Isagoge, aristotle'S Categories and (...) On Interpretation and boethius'S textbook on topical inference. They comprise a freestanding Dialectica (“Logic”; probably c.1116), a set of commentaries (known as the Logica [Ingredientibus], c. 1119) and a later (c. 1125) commentary on the Isagoge (Logica Nostrorum Petititoni Sociorum or Glossulae). In a work Abelard called his Theologia, issued in three main versions (between 1120 and c.1134), he attempted a logical analysis of trinitarian relations and explored the philosophical problems surrounding God's claims to omnipotence and omniscience. The Collationes (“Debates,” also known as “Dialogue between a Christian, a Philosopher and a Jew”; probably c.1130) present a rational investigation into the nature of the highest good, in which the Christian and the Philosopher (who seems to be modeled on a philosopher of pagan antiquity) are remarkably in agreement. The unfinished Scito teipsum (“Know thyself,” also known as the “Ethics”; c.1138) analyses moral action. (shrink)