McMaster University
Department of Philosophy
PhD, 2004
CV
East Lansing, Michigan, United States of America
Areas of Specialization
Epistemology
Reasoning
Argument
Disagreement
  • Burdens of Proposing
    Informal Logic 44 (1): 291-342. 2022.
    This paper considers the probative burdens of proposing action or policy options in deliberation dialogues. Do proposers bear a burden of proof? Building on pioneering work by Douglas Walton (2010), and following on a growing literature within computer science, the prevailing answer seems to be “No.” Instead, only recommenders—agents who put forward an option as the one to be taken—bear a burden of proof. Against this view, we contend that proposers have burdens of proof with respect to their pr…Read more
  • Logics for “Non-Logical” Argumentation
    Informal Logic 44 (1): 521-562. 2022.
    On Gilbert’s multi-modal theory of argumentation, the “logical” is but one among many modes of argument, including the emotional, the visceral (physical), and the kisceral (intuitive). Yet, I argue that, properly understood, the logical is not one mode among many. Rather, it is better understood as the _uber-mode_ of argument. What Gilbert calls the “logical mode” of argument—a linear, orderly, highly verbalizable, way of arguing—is made possible only to the extent that the logic of some space o…Read more
  •  3
    Intellectual Virtue in Critical Thinking and Its Instruction
    with Matt Ferkany and Matt McKeon
    Informal Logic 44 (1): 167-172. 2023.
    How is intellectual virtue related to critical thinking? Can one be a critical thinker without exercising intellectual virtue? Can one be intellectually virtuous without thereby being a critical thinker? How should our answers to these questions inform the instruction of critical thinking? These were the questions informing the 2023 Charles McCracken endowed lectureships given at Michigan State University by Professors Harvey Siegel and Jason Baehr. This brief commentary introduces their respect…Read more
  •  7
    Different approaches analyze the strength of a natural language argument in different ways. This paper contrasts the dialectical, structural, probabilistic (or Bayesian), computational, and empirical approaches by exemplarily applying them to a single argumentative text (Epicureans on Squandering Life; Aikin & Talisse, 2019). Rather than pitching these approaches against one another, our main goal is to show the room for fruitful interaction. Our focus is on a dialectical analysis of the squande…Read more
  •  17
    Intellectual Virtue in Critical Thinking and Its Instruction
    with Matt Ferkany and Matt McKeon
    Informal Logic 43 (2): 167-172. 2023.
    How is intellectual virtue related to critical thinking? Can one be a critical thinker without exercising intellectual virtue? Can one be intellectually virtuous without thereby being a critical thinker? How should our answers to these questions inform the instruction of critical thinking? These were the questions informing the 2023 Charles McCracken endowed lectureships given at Michigan State University by Professors Harvey Siegel and Jason Baehr. This brief commentary introduces their respect…Read more
  •  10
    Mill on Logic
    In Christopher Macleod & Dale E. Miller (eds.), A Companion to Mill, John Wiley & Sons, Inc.. 2016.
    Working within the broad lines of general consensus that mark out the core features of Mill's System of Logic (1843–72), this chapter provides an introduction to Mill's logical theory by reviewing his position on the relationship between induction and deduction, and the role of general premises and principles in reasoning. Locating induction, understood as a kind of analogical reasoning from particulars to particulars, as the basic form of inference that is both free‐standing and the sole load‐b…Read more
  •  8
    Logics for “Non-Logical” Argumentation
    Informal Logic 43 (4): 521-562. 2022.
    On Gilbert’s multi-modal theory of argumentation, the “logical” is but one among many modes of argument, including the emotional, the visceral (physical), and the kisceral (intuitive). Yet, I argue that, properly understood, the logical is not one mode among many. Rather, it is better understood as the _uber-mode_ of argument. What Gilbert calls the “logical mode” of argument—a linear, orderly, highly verbalizable, way of arguing—is made possible only to the extent that the logic of some space o…Read more
  •  105
    Recent work on conditional reasoning argues that denying the antecedent [DA] and affirming the consequent [AC] are defeasible but cogent patterns of argument, either because they are effective, rational, albeit heuristic applications of Bayesian probability, or because they are licensed by the principle of total evidence. Against this, we show that on any prevailing interpretation of indicative conditionals the premises of DA and AC arguments do not license their conclusions without additional a…Read more
  •  5
    Burdens of Proposing
    Informal Logic 43 (4): 291-342. 2022.
    This paper considers the probative burdens of proposing action or policy options in deliberation dialogues. Do proposers bear a burden of proof? Building on pioneering work by Douglas Walton (2010), and following on a growing literature within computer science, the prevailing answer seems to be “No.” Instead, only recommenders—agents who put forward an option as the one to be taken—bear a burden of proof. Against this view, we contend that proposers have burdens of proof with respect to their pr…Read more
  •  5
    Logics for “Non-Logical” Argumentation
    Informal Logic 43 (4): 521-562. 2022.
    On Gilbert’s multi-modal theory of argumentation, the “logical” is but one among many modes of argument, including the emotional, the visceral (physical), and the kisceral (intuitive). Yet, I argue that, properly understood, the logical is not one mode among many. Rather, it is better understood as the _uber-mode_ of argument. What Gilbert calls the “logical mode” of argument—a linear, orderly, highly verbalizable, way of arguing—is made possible only to the extent that the logic of some space o…Read more
  •  8
    Burdens of Proposing
    Informal Logic 43 (4): 291-342. 2022.
    This paper considers the probative burdens of proposing action or policy options in deliberation dialogues. Do proposers bear a burden of proof? Building on pioneering work by Douglas Walton (2010), and following on a growing literature within computer science, the prevailing answer seems to be “No.” Instead, only recommenders—agents who put forward an option as the one to be taken—bear a burden of proof. Against this view, we contend that proposers have burdens of proof with respect to their pr…Read more
  •  28
    Reasoning by grounded analogy
    with John Grey
    Synthese 199 (3-4): 5419-5453. 2021.
    Analogical reasoning projects a property taken to hold of something or things (the source) to something else (the target) on the basis of just those similarities premised in the analogy. Standard similarity-based accounts of analogical reasoning face the question: Under what conditions does a collection of similarities sufficiently warrant analogical projection? One answer is: When a thing’s having the premised similarities somehow determines its having the projected property. Standardly, this a…Read more
  •  26
    Disputational models of argumentation have been criticized as introducing adversariality into argumentation by mistakenly conceiving of it as minimally adversarial, and, in doing so, structurally incentivizing ancillary adversariality. As an alternative, non-adversarial models of argumentation like inquiry have been recommended. In this article I defend disputational, minimally adversarial models of disagreement-based argumentation. First, I argue that the normative kernel of minimal adversarial…Read more
  •  17
    Getting Out in Front of the Owl of Minerva Problem
    Argumentation 36 (1): 35-60. 2021.
    Our meta-argumentative vocabulary supplies the conceptual tools used to reflectively analyse, regulate, and evaluate our argumentative performances. Yet, this vocabulary is susceptible to misunderstanding and abuse in ways that make possible new discursive mistakes and pathologies. Thus, our efforts to self-regulate our reason-transacting practices by articulating their norms makes possible new ways to violate and flout those very norms. Scott Aikin identifies the structural possibility of this …Read more
  •  55
    Adversarial Listening in Argumentation
    Topoi 40 (5): 925-937. 2020.
    Adversariality in argumentation is typically theorized as inhering in, and applying to, the interactional roles of proponent and opponent that arguers occupy. This paper considers the kinds of adversariality located in the conversational roles arguers perform while arguing—specifically listening. It begins by contending that the maximally adversarial arguer is an arguer who refuses to listen to reason by refusing to listen to another’s reasons. It proceeds to consider a list of lousy listeners i…Read more
  •  20
    No Place for Compromise: Resisting the Shift to Negotiation
    with John Casey
    Argumentation 34 (4): 499-535. 2020.
    In a series of recent papers beginning with their “Splitting a difference of opinion: The shift to negotiation” Jan Albert van Laar and Erik Krabbe claim that it is sometimes reasonable to shift from a critical discussion to a negotiation in order to settle a difference of opinion. They argue that their proposal avoids the fallacies of bargaining and middle ground. Against this permissive policy for shifting to negotiation, we argue that the motivating reasons for such shifts typically fail, and…Read more
  •  60
    Argumentation, rationality, and psychology of reasoning
    Informal Logic 35 (2): 135-166. 2015.
    This paper explicates an account of argumentative rationality by articulating the common, basic idea of its nature, and then identifying a collection of assumptions inherent in it. Argumentative rationality is then contrasted with dual-process theories of reasoning and rationality prevalent in the psychology of reasoning. It is argued that argumentative rationality properly corresponds only with system-2 reasoning in dual-process theories. This result challenges the prescriptive force of argumen…Read more
  •  56
    . While courts depend on expert opinions in reaching sound judgments, the role of the expert witness in legal proceedings is associated with a litany of problems. Perhaps most prevalent is the question of under what circumstances should testimony be admitted as expert opinion. We review the changing policies adopted by American courts in an attempt to ensure the reliability and usefulness of the scientific and technical information admitted as evidence. We argue that these admissibility criteria…Read more
  •  45
    Psychologism and the Development of Russell's Account of Propositions
    History and Philosophy of Logic 30 (2): 171-186. 2009.
    This article examines the development of Russell's treatment of propositions, in relation to the topic of psychologism. In the first section, we outline the concept of psychologism, and show how it can arise in relation to theories of the nature of propositions. Following this, we note the anti-psychologistic elements of Russell's thought dating back to his idealist roots. From there, we sketch the development of Russell's theory of the proposition through a number of its key transitions. We sho…Read more
  • Proceedings of the 8th International Conference of the International Society for the Study of Argumentation [CD-ROM] (edited book)
    with B. J. Garssen, G. Mitchell, and A. F. Snoeck Henkemans
    Sic Sat. 2015.
  •  9
    Introduction: The Practice(s) of Giving Reasons
    with Chris Campolo
    Topoi 38 (4): 627-630. 2019.
  •  18
    Robert Fogelin argued that the efficacy of our acts of reasons-giving depends on the normalcy of our discourse—to the extent that discourse is not normal disagreements occurring in it are deep; and to the extent that disagreements are deep, they are not susceptible to rational resolution. Against this, Maurice Finocchiaro argues that meta-argumentation can contribute to the rational resolution of disagreements having depth. Drawing upon a competency view of reasons-giving, this article conducts …Read more
  •  21
    Corroboration: Sensitivity, Safety, and Explanation
    Acta Analytica 34 (1): 15-38. 2019.
    Corroborative evidence may be understood as having two epistemic effects: a primary effect by which it offers direct evidence for some claim, and a secondary effect by which it bolsters the appraised probative, or evidential, value of some other piece of evidence for that claim. This paper argues that the bolstering effect of corroborative evidence is epistemically legitimate because corroboration provides a reason to count the belief based on the initial evidence as sensitive to, and safe from,…Read more
  •  34
    Jan Albert van Laar and Erik Krabbe’s paper “Splitting a difference of opinion” studies an important type of dialogue shift, namely that from a deliberation dialogue over action or policy options where critical and persuasive argumentation is exchanged about the rational acceptability of the policy options proposed by various parties, to a negotiation dialogue where agreement is reached by a series of compromises, or trade-offs, on the part of each side in the disagreement.
  •  1281
    A theory of presumption for everyday argumentation
    with Douglas N. Walton
    Pragmatics and Cognition 15 (2): 313-346. 2007.
    The paper considers contemporary models of presumption in terms of their ability to contribute to a working theory of presumption for argumentation. Beginning with the Whatelian model, we consider its contemporary developments and alternatives, as proposed by Sidgwick, Kauffeld, Cronkhite, Rescher, Walton, Freeman, Ullmann-Margalit, and Hansen. Based on these accounts, we present a picture of presumptions characterized by their nature, function, foundation and force. On our account, presumption …Read more
  •  42
    The standard account of denying the antecedent (DA) is that it is a deductively invalid form of argument, and that, in a conditional argument, to argue from the falsity of the antecedent to the falsity of the consequent is always fallacious. In this paper, we argue that DA is not always a fallacious argumentative strategy. Instead, there is a legitimate usage of DA according to which it is a defeasible argument against the acceptability of a claim. The dialectical effect of denying the anteceden…Read more