•  384
    [Draft of October 2024] David Lewis acclimated us to talk of “nonactual concreta that exist,” regarding talking donkeys and the like. I shall argue that this was not for the best, and try to normalize a way of describing them as “actual concreta that do not exist.” The basis of this is a defense of the Meinongian thesis “there are objects of which it is true that there are no such objects,” re: fictitious and illusory objects. I first formulate the problem of negative existentials in a novel way…Read more
  •  285
    On the PROVER9 Ontological Argument
    Philosophia 43 (2): 475-483. 2015.
    Oppenheimer & Zalta have re-formulated their non-modal version of the ontological argument, with the help of PROVER9, an automated reasoning engine. The authors end up rejecting the new argument; however, the theist has a rejoinder worth considering. But after presenting the rejoinder, I highlight that the conceivability of the being does not imply its possibility. One lesson is that even non-modal ontological arguments must engage modal matters concerning God. Another lesson is that if PROVER9 …Read more
  •  242
    Externalism holds that the content of our utterances and thoughts are determined partly by the environment. Here, I offer an argument which suggests that externalism is incompatible with a natural view about ontological commitment--namely, the Quinean view that such commitments are fixed by the range of the variables in your theory. The idea in brief is that if Oscar mistakenly believes that water = XYZ, the externalist ontologically commits Oscar to two waterish kinds, whereas the Quinean commi…Read more
  •  412
    The Modal Ontological Argument Meets Modal Fictionalism
    Analytic Philosophy 57 (4): 338-352. 2016.
    This paper attacks the modal ontological argument, as advocated by Plantinga among others. Whereas other criticisms in the literature reject one of its premises, the present line is that the argument is invalid. This becomes apparent once we run the argument assuming fictionalism about possible worlds. Broadly speaking, the problem is that if one defines “x” as something that exists, it does not follow that there is anything satisfying the definition. Yet unlike non-modal ontological arguments…Read more
  •  497
    Knowing‐Wh and Embedded Questions
    Philosophy Compass 9 (2): 81-95. 2014.
    Do you know who you are? If the question seems unclear, it might owe to the notion of ‘knowing-wh’ (knowing-who, knowing-what, knowing-when, etc.). Such knowledge contrasts with ‘knowing-that’, the more familiar topic of epistemologists. But these days, knowing-wh is receiving more attention than ever, and here we will survey three current debates on the nature of knowing-wh. These debates concern, respectively, (1) whether all knowing-wh is reducible to knowing-that (‘generalized intellectualis…Read more
  •  203
    Theory Dualism and the Metalogic of Mind-Body Problems
    In Christopher Daly (ed.), Palgrave Handbook on Philosophical Methods, Palgrave-macmillan. pp. 497-526. 2015.
    The paper defends the philosophical method of "regimentation" by example, especially in relation to the theory of mind. The starting point is the Place-Smart after-image argument: A green after-image will not be located outside the skull, but if we cracked open your skull, we won't find anything green in there either. (If we did, you'd have some disturbing medical news.) So the after-image seems not to be in physical space, suggesting that it is non-physical. In response, I argue that the green …Read more
  •  397
    Externalism and “knowing what” one thinks
    Synthese 192 (5): 1337-1350. 2015.
    Some worry that semantic externalism is incompatible with knowing by introspection what content your thoughts have. In this paper, I examine one primary argument for this incompatibilist worry, the slow-switch argument. Following Goldberg , I construe the argument as attacking the conjunction of externalism and “skeptic immune” knowledge of content, where such knowledge would persist in a skeptical context. Goldberg, following Burge :649–663, 1988), attempts to reclaim such knowledge for the ext…Read more
  •  349
    This paper identifies a novel type of intensionality, arising entirely from a self-referential operation defined in purely formal terms. However, the result does not force revisions to classical logic since intensional operations are already excluded on principle. But the paper reveals an unexpected route by which intensionality can arise, showing that additional vigilance is needed to prevent such constructions.
  •  312
    Externalism and Self-Knowledge
    In Ed Zalta (ed.), Stanford Encyclopedia of Philosophy, Stanford Encyclopedia of Philosophy. 2012.
    Entry on the Stanford Encyclopedia of Philosophy. A summary of the literature on whether externalism about thought content precludes non-empirical knowledge of one's own thoughts.
  •  393
    Note on Induction
    Think 12 (33): 37-39. 2013.
    ExtractSome logic textbooks say, as if it were the received wisdom, that inductive arguments are partly defined by the thinker's intentions. The claim is that an inductive argument is one where the premises are intended to make the conclusion likely. This contrasts with a deductive argument, where the premises are intended to entail the conclusion. However, since entailing is one way of making more likely, a further way to distinguish induction is needed. The addition offered is that the premise…Read more
  •  382
    A dilemma about kinds and kind terms
    Synthese 198 (Suppl 12): 2987-3006. 2019.
    'The kind Lion' denotes a kind. Yet many generics are thought to denote kinds also, like the subject-terms in 'The lion has a mane', 'Dinosaurs are extinct', and 'The potato was cultivated in Ireland by the end of the 17th century.' This view may be adequate for the linguist's overall purposes--however, if we limit our attention to the theory of reference, it seems unworkable. The problem is that what is often predicated of kinds is not what is predicated of the lion, dinosaurs, and the potato. …Read more
  •  235
    Modal Metaphysics
    In James Fieser & Bradley Dowden (eds.), Internet Encyclopedia of Philosophy, Routledge. 2011.
    This summarizes of some prominent views about the metaphysics of possible worlds.
  •  323
    The Empirical Case against Infallibilism
    Review of Philosophy and Psychology 7 (1): 223-242. 2016.
    Philosophers and psychologists generally hold that, in light of the empirical data, a subject lacks infallible access to her own mental states. However, while subjects certainly are fallible in some ways, I show that the data fails to discredit that a subject has infallible access to her own occurrent thoughts and judgments. This is argued, first, by revisiting the empirical studies, and carefully scrutinizing what is shown exactly. Second, I argue that if the data were interpreted to rule out a…Read more
  •  426
    Rule Following and Metaontology
    Journal of Philosophy 112 (5): 247-265. 2015.
    Wittgenstein’s rule-following argument suggests that linguistic understanding does not consist in knowing interpretations, whereas Kripkenstein’s version suggests that meaning cannot be metaphysically fixed by interpretations. In the present paper, rule-following considerations are used to suggest that certain ontological questions cannot be answered by interpretations. Specifically, if the aim is to specify the ontology of a language, an interpretation cannot answer what object an expression of…Read more
  •  284
    Infallibilism about self-knowledge
    Philosophical Studies 133 (3): 411-424. 2007.
    Descartes held the view that a subject has infallible beliefs about the contents of her thoughts. Here, I first examine a popular contermporary defense of this claim, given by Burge, and find it lacking. I then offer my own defense appealing to a minimal thesis about the compositionality of thoughts. The argument has the virtue of refraining from claims about whether thoughts are “in the head;” thus, it is congenial to both internalists and externalists. The considerations here also illuminate h…Read more
  •  530
    Ontic terms and metaontology, or: on what there actually is
    Philosophical Studies 170 (2): 199-214. 2014.
    Terms such as ‘exist’, ‘actual’, etc., (hereafter, “ontic terms”) are recognized as having uses that are not ontologically committing, in addition to the usual commissive uses. (Consider, e.g., the Platonic and the neutral readings of ‘There is an even prime’.) In this paper, I identify five different noncommissive uses for ontic terms, and (by a kind of via negativa) attempt to define the commissive use, focusing on ‘actual’ as my example. The problem, however, is that the resulting definiens f…Read more
  •  237
    Infallibility Naturalized: Reply to Hoffmann
    Dialectica 67 (3): 353-358. 2013.
    The present piece is a reply to G. Hoffmann on my infallibilist view of self-knowledge. Contra Hoffmann, it is argued that the view does not preclude a Quinean epistemology, wherein every belief is subject to empirical revision
  •  244
    Here I first raise an argument purporting to show that Lewis’ Modal Realism ends up being entirely trivial. But although I reject this line, the argument reveals how difficult it is to interpret Lewis’ thesis that possibilia “exist.” Five natural interpretations are considered, yet upon reflection, none appear entirely adequate. On the three different “concretist” interpretations of ‘exist’, Modal Realism looks insufficient for genuine ontological commitment. Whereas, on the “multiverse” interpr…Read more
  •  289
    An Objection to the Laplacean Chalmers
    Journal for General Philosophy of Science / Zeitschrift für Allgemeine Wissenschaftstheorie 47 (1): 237-240. 2016.
    I discuss David Chalmers’ “scrutability thesis,” roughly that a Laplacean intellect could know every truth about the universe from a “compact class” of basic truths. It is argued that despite Chalmers’ remarks to the contrary, the thesis is problematic owing to quantum indeterminacy. Chalmers attempts to “frontload” various principles into the compact class to help out. But though frontloading may succeed in principle, Chalmers does not frontload enough to avoid the problem.