•  96
    A General Schema for Bilateral Proof Rules
    Journal of Philosophical Logic 1-34. 2024.
    Bilateral proof systems, which provide rules for both affirming and denying sentences, have been prominent in the development of proof-theoretic semantics for classical logic in recent years. However, such systems provide a substantial amount of freedom in the formulation of the rules, and, as a result, a number of different sets of rules have been put forward as definitive of the meanings of the classical connectives. In this paper, I argue that a single general schema for bilateral proof rules…Read more
  •  124
    How to Be a Hyper-Inferentialist
    Synthese 202 (163): 1-24. 2023.
    An “inferentialist” semantic theory for some language L aims to account for the meanings of the sentences of L solely in terms of the inferential rules governing their use. A “hyper-inferentialist” theory admits into the semantics only “narrowly inferential” rules that normatively relate sentences of L to other sentences of L. A “strong inferentialist” theory also admits into the semantics “broadly inferential” rules that normatively relate perceptual states to sentences of L or sentences of L t…Read more
  •  150
    Why Must Incompatibility Be Symmetric?
    Philosophical Quarterly. forthcoming.
    Why must incompatibility be symmetric? An odd question, but recent work in the semantics of non-classical logic, which appeals to the notion of incompatibility as a primitive and defines negation in terms of it, has brought this question to the fore. Francesco Berto proposes such a semantics for negation argues that, since incompatibility must be symmetric, double negation introduction must be a law of negation. However, he offers no argument for the claim that incompatibility really must be sym…Read more
  •  261
    Meaning and the World
    Dissertation, University of Chicago. 2022.
    I motivate and develop a use-based semantic theory in opposition to the dominant paradigm in philosophical and linguistic semantics. Drawing inspiration from Wilfrid Sellars, I argue that contemporary semantic theories are faced with a basic problem of explanatory circularity. These theories universally presuppose that worldly knowledge of such things as properties or sets of possible worlds precedes and underlies knowledge of meaning. However, I argue that it is only through learning a languag…Read more
  •  189
    According to existing accounts of indicative conditionals, any argument of the following form is valid: ϕ → ψ, ( ϕ ∧ ψ ) → χ ∴ ϕ → χ. Here, I present a set of counterexamples to show that there exist invalid arguments of this form. I argue that this data poses serious problems to variably strict accounts of conditionals, as such accounts are structurally unable to accommodate it. Dynamic strict accounts, however, are a different story. While existing dynamic strict accounts do not accommodate …Read more
  •  448
    The Normative/agentive Correspondence (review)
    Journal of Transcendental Philosophy 3 (1): 71-101. 2022.
    In recent work, Robert Brandom has articulated important connections between the deontic normative statuses of entitlement and commitment and the alethic modal statuses of possibility and necessity. In this paper, I articulate an until now unexplored connection between Brandom’s core normative statuses of entitlement and commitment and the agentive modal statuses of ability and compulsion. These modals have application not only in action, but also in perception and inference, and, in both of the…Read more
  •  912
    Sellars's ontological nominalism
    European Journal of Philosophy 30 (3): 1041-1061. 2021.
    Wilfrid Sellars is widely known for two positions that he calls “nominalism.” On the one hand, there is his “psychological nominalism,” according to which any awareness one might have of abstract entities—be they properties, relations, or facts—is a thoroughly linguistic affair, and so cannot be presupposed in thinking about the process of learning a (first) language. On the other hand, there is his ontological nominalism, according to which the world, as it is in itself, is fundamentally a worl…Read more
  •  16
    Pointing out the Skeptic's Mistake
    Florida Philosophical Review 14 (1): 69-84. 2014.
    Donald Davidson argues that the very nature of belief ensures that, if we have any beliefs at all, most of them must be true. He takes this to show that Cartesian skepticism is fundamentally mistaken. Many commentators, however, find this response to skepticism to be lacking. In this paper, I draw from recent work by Rebecca Kukla and Mark Lance and attempt to give Davidson’s argument a newfound force by applying it to our acts of ostension, of pointing others to features in our shared environme…Read more
  • Reformulating the Two Aspects of Justification
    Florida Philosophical Review 13 (1): 49-59. 2013.
    In Evidence and Inquiry, Susan Haack presents a dual-aspect account of evidence in which both casual and logical relations play a necessary factor. In this paper, I reformulates how these two aspects fit together to form a comprehensive picture of discursive justification. Drawing from Quine’s work on the “observation sentence,” I show how we can move from causal justifications to inferential justifications. Conversely, I also attempt to show how we can correct and improve our causally justified…Read more