•  157
    Meaning and truth-conditions: A reply to Kemp
    Philosophical Quarterly 52 (206). 2002.
    In his 'Meaning and Truth-Conditions', Gary Kemp offers a reconstruction of Frege's infamous 'regress argument' which purports to rely only upon the premises that the meaning of a sentence is its truth-condition and that each sentence expresses a unique proposition. If cogent, the argument would show that only someone who accepts a form of semantic holism can use the notion of truth to explain that of meaning. I respond that Kemp relies heavily upon what he himself styles 'a literal, rather wood…Read more
  •  4842
    Frege's contribution to philosophy of language
    with Robert May
    In Barry C. Smith & Ernest Lepore (eds.), The Oxford Handbook of Philosophy of Language, Oxford University Press. pp. 3-39. 2006.
    An investigation of Frege’s various contributions to the study of language, focusing on three of his most famous doctrines: that concepts are unsaturated, that sentences refer to truth-values, and that sense must be distinguished from reference
  •  584
    Use and Meaning
    In R. E. Auxier & L. E. Hahn (eds.), The Philosophy of Michael Dummett, Open Court. pp. 531--57. 2007.
    Many philosophers have been attracted to the idea that meaning is, in some way or other, determined by use—chief among them, perhaps, Michael Dummett. But John McDowell has argued that Dummett, and anyone else who would seek to draw serious philosophical conclusions from this claim, must face a dilemma: Either the use of a sentence is characterized in terms of what it can be used to say, in which case profound philosophical consequences can hardly follow, or it will be impossible to make out the…Read more
  •  1244
    Self-reference and the languages of arithmetic
    Philosophia Mathematica 15 (1): 1-29. 2007.
    I here investigate the sense in which diagonalization allows one to construct sentences that are self-referential. Truly self-referential sentences cannot be constructed in the standard language of arithmetic: There is a simple theory of truth that is intuitively inconsistent but is consistent with Peano arithmetic, as standardly formulated. True self-reference is possible only if we expand the language to include function-symbols for all primitive recursive functions. This language is therefore…Read more
  •  546
    Semantic Accounts of Vagueness
    In J. C. Beall (ed.), Liars and Heaps, Oxford University Press. pp. 106-27. 2003.
    Read as a comment on Crispin Wright's \"Vagueness: A Fifth Column Approach\", this paper defends a form of supervaluationism against Wright's criticisms. Along the way, however, it takes up the question what is really wrong with Epistemicism, how the appeal of the Sorities ought properly to be understood, and why Contextualist accounts of vagueness won't do.
  •  1879
    Nonconceptual content and the "space of reasons"
    Philosophical Review 109 (4): 483-523. 2000.
    In Mind and World, John McDowell argues against the view that perceptual representation is non-conceptual. The central worry is that this view cannot offer any reasonable account of how perception bears rationally upon belief. I argue that this worry, though sensible, can be met, if we are clear that perceptual representation is, though non-conceptual, still in some sense 'assertoric': Perception, like belief, represents things as being thus and so.
  •  1049
    Definition by Induction in Frege's Grundgesetze der Arithmetik
    In William Demopoulos (ed.), Frege's philosophy of mathematics, Harvard University Press. 1995.
    This paper discusses Frege's account of definition by induction in Grundgesetze and the two key theorems Frege proves using it.
  •  52
    Reading Frege's Grundgesetze
    Oxford University Press UK. 2012.
    Gottlob Frege's Grundgesetze der Arithmetik, or Basic Laws of Arithmetic, was intended to be his magnum opus, the book in which he would finally establish his logicist philosophy of arithmetic. But because of the disaster of Russell's Paradox, which undermined Frege's proofs, the more mathematical parts of the book have rarely been read. Richard G.
  •  603
    Is Frege's Definition of the Ancestral Adequate?
    Philosophia Mathematica 24 (1): 91-116. 2016.
    Why should one think Frege's definition of the ancestral correct? It can be proven to be extensionally correct, but the argument uses arithmetical induction, and that seems to undermine Frege's claim to have justified induction in purely logical terms. I discuss such circularity objections and then offer a new definition of the ancestral intended to be intensionally correct; its extensional correctness then follows without proof. This new definition can be proven equivalent to Frege's without an…Read more
  •  363
    Consistency and the theory of truth
    Review of Symbolic Logic 8 (3): 424-466. 2015.
    This paper attempts to address the question what logical strength theories of truth have by considering such questions as: If you take a theory T and add a theory of truth to it, how strong is the resulting theory, as compared to T? Once the question has been properly formulated, the answer turns out to be about as elegant as one could want: Adding a theory of truth to a finitely axiomatized theory T is more or less equivalent to a kind of abstract consistency statement. A large part of the inte…Read more
  •  914
    Truth in Frege
    with Robert May
    In M. Glanzberg (ed.), Oxford Handbook of Truth, Oxford University Press. forthcoming.
    A general survey of Frege's views on truth, the paper explores the problems in response to which Frege's distinctive view that sentences refer to truth-values develops. It also discusses his view that truth-values are objects and the so-called regress argument for the indefinability of truth. Finally, we consider, very briefly, the question whether Frege was a deflationist.
  •  77
    Grundgesetze der Arithmetik I §§29‒32
    Notre Dame Journal of Formal Logic 38 (3): 437-474. 1997.
    Frege's intention in section 31 of Grundgesetze is to show that every well-formed expression in his formal system denotes. But it has been obscure why he wants to do this and how he intends to do it. It is argued here that, in large part, Frege's purpose is to show that the smooth breathing, from which names of value-ranges are formed, denotes; that his proof that his other primitive expressions denote is sound and anticipates Tarski's theory of truth; and that the proof that the smooth breathin…Read more
  •  2264
    Meaning and Truth-conditions
    In Dirk Greimann & Geo Siegwart (eds.), Truth and Speech Acts: Studies in the Philosophy of Language, Routledge. pp. 349--76. 2007.
    Defends the view that understanding can be identified with knowledge of T-sentences against the classical criticisms of Foster and Soames.
  •  1220
    The Composition of Thoughts
    with Robert May
    Noûs 45 (1): 126-166. 2010.
    Are Fregean thoughts compositionally complex and composed of senses? We argue that, in Begriffsschrift, Frege took 'conceptual contents' to be unstructured, but that he quickly moved away from this position, holding just two years later that conceptual contents divide of themselves into 'function' and 'argument'. This second position is shown to be unstable, however, by Frege's famous substitution puzzle. For Frege, the crucial question the puzzle raises is why "The Morning Star is a planet" and…Read more
  •  471
    More on 'A Liar Paradox'
    Thought: A Journal of Philosophy 1 (4): 270-280. 2012.
    A reply to two responses to an earlier paper, "A Liar Paradox".
  •  85
    Frege's theorem
    Clarendon Press. 2011.
    The book begins with an overview that introduces the Theorem and the issues surrounding it, and explores how the essays that follow contribute to our understanding of those issues.
  •  735
    This paper discusses the question whether it is possible to explain the notion of a singular term without invoking the notion of an object or other ontological notions. The framework here is that of Michael Dummett's discussion in Frege: Philosophy of Language. I offer an emended version of Dummett's conditions, accepting but modifying some suggestions made by Bob Hale, and defend the emended conditions against some objections due to Crispin Wright. This paper dates from about 1989. It originall…Read more
  •  123
    Syntactic reductionism
    Philosophia Mathematica 8 (2): 124-149. 2000.
    Syntactic Reductionism, as understood here, is the view that the ‘logical forms’ of sentences in which reference to abstract objects appears to be made are misleading so that, on analysis, we can see that no expressions which even purport to refer to abstract objects are present in such sentences. After exploring the motivation for such a view, and arguing that no previous argument against it succeeds, sentences involving generalized quantifiers, such as ‘most’, are examined. It is then argued, …Read more
  •  1027
    This paper is concerned with neo-Fregean accounts of reference to abstract objects. It develops an objection to the most familiar such accounts, due to Bob Hale and Crispin Wright, based upon what I call the 'proliferation problem': Hale and Wright's account makes reference to abstract objects seem too easy, as is shown by the fact that any equivalence relation seems as good as any other. The paper then develops a response to this objection, and offers an account of what it is for abstracta to e…Read more
  •  178
    A reply to Byrne and Thau's criticisms of "The Sense of Communiction".
  •  1382
    Frege on Identity and Identity-Statements: A Reply to Thau and Caplan
    Canadian Journal of Philosophy 33 (1): 83-102. 2003.
    The paper argues, as against Thau and Caplan, that the traditional interpretation that Frege abandoned his earlier views about identity and identity--statements is correct
  •  455
    Sir Michael Anthony Eardley Dummett, 1925-2011
    Philosophia Mathematica 21 (1): 1-8. 2013.
    A remembrance of Dummett's work on philosophy of mathematcis.