Ohio State University
Department of Philosophy
PhD, 1999
St. Louis, Missouri, United States of America
PhilPapers Editorships
Knowability
Epistemic Modals
  •  8
    Suppositional Attitudes and the Reliability of Heuristics for Assessing Conditionals
    Thought: A Journal of Philosophy 11 (3): 175-183. 2022.
    Timothy Williamson contends that our primary cognitive heuristic for prospectively assessing conditionals, i.e., the suppositional procedure, is provably inconsistent. Our diagnosis is that stipulations about the nature of suppositional rejection are the likely source of these results. We show that on at least one alternative, and quite natural, understanding of the suppositional attitudes, the inconsistency results are blocked. The upshot is an increase in the reliability of our suppositional h…Read more
  •  29
    Knowability and a New Paradox of Happiness
    In Hans van Ditmarsch & Gabriel Sandu (eds.), Jaakko Hintikka on Knowledge and Game Theoretical Semantics, Springer. pp. 457-474. 2018.
    The paper examines the logic of the knowability paradox and a structural analogue, a new paradox of happiness. We develop a general understanding of what it is to be a Fitch paradox, and follow a natural thread in the literature that attempts to block or resolve Fitch paradoxes. We conclude that, in the case of the attitude of happiness, the new paradox remains even if one finds the knowability analogue non-threatening.
  •  7
    War and the money machine: Concealing the costs of war beneath the veil of inflation
    Journal des Economistes Et des Etudes Humaines 6 (1): 153-174. 1995.
  •  15
    The Neglect of Bastiat's School by English-Speaking Economists: A Puzzle Resolved
    Journal des Economistes Et des Etudes Humaines 11 (2). 2001.
    The French liberal school, the school of Frédéric Bastiat, thoroughly dominated economics in France for most of the nineteenth century. In addition, the school exercised a profound influence on the development of nineteenth-century economic theory outside France, particularly in countries such as Italy, Germany and Austria where its merits were recognized by eminent Continental marginalists including Böhm-Bawerk, Cassel, Wicksell and Pareto. In the United States, Great Britain and Australia, als…Read more
  •  25
    Two traditions in modern monetary theory : John law and A. R. J. turgot
    Journal des Economistes Et des Etudes Humaines 2 (2-3): 337-380. 1991.
  •  19
    Bruce Caldwell has disputed a number of points in my earlier account of the development of the Austrian school of economics from Carl Menger to Ludwig von Mises and F.A. Hayek. The issues in contention regard Friedrich von Wieser’s intellectual affiliation with Hayek and his influence on the formation of Hayek’s economic thought; Wieser’s status as a general equilibrium theorist; and the reason for Hayek’s early flirtation with general equilibrium theory. In this article I argue that Hayek was a…Read more
  •  70
    Epistemic modals and modus tollens
    Philosophical Studies 173 (10): 2663-2680. 2016.
    Epistemic modals in consequent place of indicative conditionals give rise to apparent counterexamples to Modus Tollens. Familiar assumptions behind familiar truth conditional theories of embedded modality facilitate a prima facie explanation—viz., that the target cases harbor epistemic modal equivocations. However, this sort of explanation goes too far. It fosters other predictions of equivocation in places where in fact there are none. It is argued that the solution is to drop the credo that mo…Read more
  • The project is to demonstrate important connections between our metaphysical views and the logical principles we endorse. For example, acceptance of the principle that every proposition is determinately true or false commits us to certain "metaphysical realist" views about the existence of mind-independent facts. Conversely: acceptance of certain metaphysical views necessitate rejection of certain logics in favor of others. ;Current debates offer several views about the relation between logic an…Read more
  •  10
    On Frege
    Cengage Learning. 2001.
    This brief text assists students in understanding Frege's philosophy and thinking so they can more fully engage in useful, intelligent class dialogue and improve their understanding of course content. Part of the Wadsworth Notes Series, (which will eventually consist of approximately 100 titles, each focusing on a single "thinker" from ancient times to the present), ON FREGE is written by a philosopher deeply versed in the philosophy of this key thinker. Like other books in the series, this conc…Read more
  •  72
    Frédéric Bastiat was a member of the French liberal school, which thoroughly dominated economics in France from the beginning of the nineteenth century until the 1880’s and continued to exert a strong intellectual influence right up to the eve of World War One. He was neither the school’s founder, nor its most profound theorist, nor even the most consistent defender of the laissez-faire implications of its economic theories. He was however the most gifted expositor of its politico-economic doctr…Read more
  •  58
    One of the most important areas in which Cantillon influenced J, B. Say involves a set of issues which receives no explicit treatment in the assai. I refer to the distinc-.
  •  112
    Truth-tracking and the Problem of Reflective Knowledge
    In Joseph Keim Campbell, Michael O'Rourke & Harry S. Silverstein (eds.), Knowledge and Skepticism, Mit Press. pp. 73-83. 2010.
    In “Reliabilism Leveled” Jonathan Vogel (2000) provides a strong case against epistemic theories that stress the importance of tracking/sensitivity conditions. A tracking/sensitivity condition is to be understood as some version of the following counterfactual: (T) ~p oÆ ~Bp (T) says that s would not believe p, if p were false. Among other things, tracking is supposed to express the external relation that explains why some justified true beliefs are not knowledge. Champions of the condition incl…Read more
  • New Essays on Knowability (edited book)
    Oxford: Oxford University Press. 2009.
  • In New Essays on the Knowability Paradox, Oxford University Press. 2009.
  •  104
    Revising the logic of logical revision
    Philosophical Studies 99 (2): 211-227. 2000.
    Michael Dummett’s realism debate is a semantic dispute about the kind of truth conditions had by a given class of sentences. According to his semantic realist, the truth conditions are potentially verification-transcendent in that they may obtain (or not) despite the fact that we may be forever unable to recognize whether they obtain. According to Dummett’s semantic anti-realist, the truth conditions are of a different sort. Essentially, for the anti-realist, that the truth conditions obtain (whe…Read more
  •  528
    Why counterpossibles are non-trivial
    In Vincent Hendricks (ed.), Synthese volume, . forthcoming.
    I. Non-Trivial Counterpossibles On Lewis’ account, a subjunctive of the form ‘if it were the case that p, it would be the case that q’ (represented as ‘p → q’) is to be given the following rough meta-linguistic truth-conditions1.
  •  307
    In his presidential address to the APA, Alvin Plantinga argues that the only sensible way to be an anti-realist is to be a theist. Anti-realism (AR) in this context is the epistemic analysis of truth that says, "(AR) necessarily, a statement is true if and only if it would be believed by an ideally [or sufficiently] rational agent/community in ideal [or sufficiently good] epistemic circumstances." Plantinga demonstrates, with modest modal resources, that AR entails that necessarily, ideal episte…Read more
  •  122
    Introduction to knowability and beyond
    Synthese 173 (1): 1-8. 2010.
  •  231
    Fitch's Paradox of Knowability
    The Stanford Encyclopedia of Philosophy. 2010.
    The paradox of knowability is a logical result suggesting that, necessarily, if all truths are knowable in principle then all truths are in fact known. The contrapositive of the result says, necessarily, if in fact there is an unknown truth, then there is a truth that couldn't possibly be known. More specifically, if p is a truth that is never known then it is unknowable that p is a truth that is never known. The proof has been used to argue against versions of anti-realism committed to the thes…Read more
  •  427
    A primary challenge from the relativist to the contextualist about epistemic modals is to explain eavesdropping data—i.e., why the eavesdropper is inclined to judge the speaker as having uttered an epistemic modal falsehood (when she is so inclined), even though the speaker’s utterance is true according to reasonable contextualist truth conditions. The issue turns in large part on the strength and shape of the data, both of which are in dispute. One complaint is that an eavesdropper’s truth valu…Read more
  •  202
    Lewis/Stalnaker semantics has it that all counterpossibles (i.e., counterfactual conditionals with impossible antecedents) are vacuously true. Non-vacuism, by contrast, says the truth-values of counterpossibles are affected by the truth-values of the consequents. Some counterpossibles are true, some false. Williamson objects to non-vacuism. He asks us to consider someone who answered ‘11’ to ‘What is 5 + 7?’ but who mistakenly believes that he answered ‘13’. For the non-vacuist, (1) is false, (2…Read more
  •  109
    Epistemic Modal Disagreement
    with Jonah Katz
    Topoi 36 (1): 141-153. 2017.
    At the center of the debate between contextualist versus relativist semantics for epistemic modal claims is an empirical question about when competent subjects judge epistemic modal disagreement to be present. John MacFarlane’s relativist claims that we judge there to be epistemic modal disagreement across the widest range of cases. We wish to dispute the robustness of his data with the results of two studies. Our primary conclusion is that the actual disagreement data is not consistent with rel…Read more
  •  401
    Counterfactuals and context
    Analysis 68 (1). 2008.
    It is widely agreed that contraposition, strengthening the antecedent and hypothetical syllogism fail for subjunctive conditionals. The following putative counter-examples are frequently cited, respectively.
  •  156
    Knowability and a modal closure principle
    American Philosophical Quarterly 43 (3): 261-270. 2006.
    Does a factive conception of knowability figure in ordinary use? There is some reason to think so. ‘Knowable’ and related terms such as ‘discoverable’, ‘observable’, and ‘verifiable’ all seem to operate factively in ordinary discourse. Consider the following example, a dialog between colleagues A and B: A: We could be discovered. B: Discovered doing what? A: Someone might discover that we're having an affair. B: But we are not having an affair! A: I didn’t say that we were. A’s remarks sound con…Read more
  •  26
    Knowability, possibility and paradox
    In Vincent Hendricks & Duncan Pritchard (eds.), New Waves in Epistemology, Palgrave Macmillan. pp. 270-299. 2007.
    The paradox of knowability threatens to draw a logical equivalence between the believable claim that all truths are knowable and the obviously false claim that all truths are known. In this paper we evaluate prominent proposals for resolving the paradox of knowability. For instance, we argue that Neil Tennant’s restriction strategy, which aims principally to restrict the main quantifier in ‘all truths are knowable’, does not get to the heart of the problem since there are knowability paradoxes t…Read more
  •  506
    Epistemic modals in consequent place of indicative conditionals give rise to apparent counterexamples to Modus Ponens and Modus Tollens. Familiar assumptions of fa- miliar truth conditional theories of modality facilitate a prima facie explanation—viz., that the target cases harbor epistemic modal equivocations. However, these explana- tions go too far. For they foster other predictions of equivocation in places where in fact there are no equivocations. It is argued here that the key to the solu…Read more
  •  125
    New Essays on the Knowability Paradox (edited book)
    Oxford University Press. 2008.
    This collection assembles Church's referee reports, Fitch's 1963 paper, and nineteen new papers on the knowability paradox.
  •  211
    Tr(A) iff ‡K(A) To remedy the error, Dummett’s proposes the following inductive characterization of truth: (i) Tr(A) iff ‡K(A), if A is a basic statement; (ii) Tr(A and B) iff Tr(A) & Tr(B); (iii) Tr(A or B) iff Tr(A) v Tr(B); (iv) Tr(if A, then B) iff (Tr(A) Æ Tr(B)); (v) Tr(it is not the case that A) iff ¬Tr(A), where the logical constant on the right-hand side of each biconditional clause is understood as subject to the laws of intuitionistic logic.2 The only other principle in play in Dummet…Read more