•  1566
    Failures of Categoricity and Compositionality for Intuitionistic Disjunction
    Thought: A Journal of Philosophy 1 (4): 281-291. 2012.
    I show that the model-theoretic meaning that can be read off the natural deduction rules for disjunction fails to have certain desirable properties. I use this result to argue against a modest form of inferentialism which uses natural deduction rules to fix model-theoretic truth-conditions for logical connectives.
  •  1958
    Mark Schroeder has argued that all reasonable forms of inconsistency of attitude consist of having the same attitude type towards a pair of inconsistent contents (A-type inconsistency). We suggest that he is mistaken in this, offering a number of intuitive examples of pairs of distinct attitudes types with consistent contents which are intuitively inconsistent (B-type inconsistency). We further argue that, despite the virtues of Schroeder's elegant A-type expressivist semantics, B-type inconsist…Read more
  •  1252
    Logical Indefinites
    Logique Et Analyse -- Special Issue Edited by Julien Murzi and Massimiliano Carrara 227. 2014.
    I argue that we can and should extend Tarski's model-theoretic criterion of logicality to cover indefinite expressions like Hilbert's ɛ operator, Russell's indefinite description operator η, and abstraction operators like 'the number of'. I draw on this extension to discuss the logical status of both abstraction operators and abstraction principles.
  •  1533
    Assertion, denial, content, and (logical) form
    Synthese 193 (6): 1667-1680. 2016.
    I discuss Greg Restall’s attempt to generate an account of logical consequence from the incoherence of certain packages of assertions and denials. I take up his justification of the cut rule and argue that, in order to avoid counterexamples to cut, he needs, at least, to introduce a notion of logical form. I then suggest a few problems that will arise for his account if a notion of logical form is assumed. I close by sketching what I take to be the most natural minimal way of distinguishing cont…Read more
  •  4229
    Expressivism and Moore's Paradox
    Philosophers' Imprint 14 1-12. 2014.
    Expressivists explain the expression relation which obtains between sincere moral assertion and the conative or affective attitude thereby expressed by appeal to the relation which obtains between sincere assertion and belief. In fact, they often explicitly take the relation between moral assertion and their favored conative or affective attitude to be exactly the same as the relation between assertion and the belief thereby expressed. If this is correct, then we can use the identity of the expr…Read more
  •  3506
    The Frege-Geach Problem
    In Tristram McPherson & David Plunkett (eds.), The Routledge Handbook of Metaethics, Routledge. pp. 226-242. 2017.
    This is an opinionated overview of the Frege-Geach problem, in both its historical and contemporary guises. Covers Higher-order Attitude approaches, Tree-tying, Gibbard-style solutions, and Schroeder's recent A-type expressivist solution.
  •  1161
    Expressivism Worth the Name -- A reply to Teemu Toppinen
    Journal of Ethics and Social Philosophy 1-7. 2015.
    I respond to an interesting objection to my 2014 argument against hermeneutic expressivism. I argue that even though Toppinen has identified an intriguing route for the expressivist to tread, the plausible developments of it would not fall to my argument anyways---as they do not make direct use of the parity thesis which claims that expression works the same way in the case of conative and cognitive attitudes. I close by sketching a few other problems plaguing such views.