•  52
    Ontological disproof of God's existence
    Australasian Journal of Philosophy 70 (2). 1992.
    An initial reading of Hume's Principle is that no necessary truth can be denied without contradiction, whereas all existential propositions can. Therefore it is self-contradictory to say,that any existential claim is necessarily true, since it follows that this claim both can and cannot be denied without self-contradiction. Thus any claim of the form 'X necessarily exists' is a self-contradiction, even if X is God
  •  16
    Moore’s Paradoxes and Iterated Belief
    Journal of Philosophical Research 32 145-168. 2007.
    I give an account of the absurdity of Moorean beliefs of the omissive form(om) p and I don’t believe that p,and the commissive form(com) p and I believe that not-p,from which I extract a definition of Moorean absurdity. I then argue for an account of the absurdity of Moorean assertion. After neutralizing two objections to my whole account, I show that Roy Sorensen’s own account of the absurdity of his ‘iterated cases’(om1) p and I don’t believe that I believe that p,and(com1) p and I believe tha…Read more
  •  222
    In 2004, I explained the absurdity of Moore-paradoxical belief via the syllogism (Williams 2004): (1) All circumstances that justify me in believing that p are circumstances that tend to make me believe that p. (2) All circumstances that tend to make me believe that p are circumstances that justify me in believing that I believe that p. (3) All circumstances that justify me in believing that p are circumstances that justify me in believing that I believe that p. I then took (3) to mean (EP) What…Read more
  •  21
    David-Hillel Ruben’s 'Traditions and True Successors': A Critical Reply
    Social Epistemology Review and Reply Collective 2 (7): 40-45. 2013.
  •  14
    A central feature of Confucianism is the doctrine that an adult child has, for want of a better word, the ‘duty’ to care for his elderly parents1. Whether this doctrine should be framed in terms of an ethic of duties as opposed to an ethic of virtues is a vexed question. It might be argued that the doctrine is best framed in terms of the behaviour and dispositions appropriate to an agent who is, within the Confucian moral vision, good. Nonetheless, in both popular discourse and in much the secon…Read more
  •  274
    Placebo-trials on HIV-infected pregnant women in developing countries like Thailand and Uganda have provoked recent controversy. Such experiments aim to find a treatment that will cut the rate of vertical transmission more efficiently than existing treatments like zidovudine. This scenario is first stated as generally as possible, before three ethical principles found in the Belmont Report, itself a sharpening of the Helsinki Declaration, are stated. These three principles are the Principle of U…Read more
  •  167
    Moore’s paradox in belief and desire
    Acta Analytica 29 (1): 1-23. 2014.
    Is there a Moore ’s paradox in desire? I give a normative explanation of the epistemic irrationality, and hence absurdity, of Moorean belief that builds on Green and Williams’ normative account of absurdity. This explains why Moorean beliefs are normally irrational and thus absurd, while some Moorean beliefs are absurd without being irrational. Then I defend constructing a Moorean desire as the syntactic counterpart of a Moorean belief and distinguish it from a ‘Frankfurt’ conjunction of desires…Read more
  •  472
    I offer a novel account of the absurdity of Moore-paradoxical assertion in terms of an interlocutor’s fully conscious beliefs. This account starts with an original argument for the principle that fully conscious belief collects over conjunction. The argument is premised on the synchronic unity of consciousness and the transparency of belief
  •  43
    In “Generalizing Generalizability in Information Systems Research,” Lee and Baskerville try to clarify generalization and classify it into four types. Unfortunately, their account is problematic. We propose repairs. Central among these is our balance-of-evidence argument that we should adopt the view that Hume’s problem of induction has a solution, even if we do not know what it is. We build upon this by proposing an alternative classification of induction. There are five types of generalization…Read more
  •  107
    Wittgensteinian accounts of Moorean absurdity
    Philosophical Studies 92 (3): 283-306. 1998.
    (A) I went to the pictures last Tuesday but I don’t believe that I did (1942, p. 543) or (B) I believe that he has gone out. But he has not (1944, p. 204) would be “absurd” (1942, p. 543; 1944, p. 204). Wittgenstein’s letters to Moore show that he was intensely interested in this discovery of a class of possibly true yet absurd assertions. Wittgenstein thought that the absurdity is important because it is “something similar to a contradiction, thought it isn’t one” (1974, p. 177). What is the ex…Read more
  •  367
    Still a New Problem for Defeasibility: A Rejoinder to Borges
    Logos and Episteme 7 (1): 83-94. 2016.
    I objected that the defeasibility theory of knowledge prohibits you from knowing that you know that p if your knowledge that p is a posteriori. Rodrigo Borges claims that Peter Klein has already satisfactorily answered a version of my objection. He attempts to defend Klein’s reply and argues that my objection fails because a principle on which it is based is false.I will show that my objection is not a version of the old one that Klein attempts (unsuccessfully) to address, that Borges’ defence o…Read more
  •  417
    Moore’s Paradoxes and Iterated Belief
    Journal of Philosophical Research 32 145-168. 2007.
    I give an account of the absurdity of Moorean beliefs of the omissive form(om) p and I don’t believe that p,and the commissive form(com) p and I believe that not-p,from which I extract a definition of Moorean absurdity. I then argue for an account of the absurdity of Moorean assertion. After neutralizing two objections to my whole account, I show that Roy Sorensen’s own account of the absurdity of his ‘iterated cases’(om1) p and I don’t believe that I believe that p,and(com1) p and I believe tha…Read more
  •  17
    Knowledge Puzzles: An Introduction to Epistemology [book review] (review)
    Australasian Journal of Philosophy 75 (4): 562. 1997.
  •  591
    Eliminativism, Dialetheism and Moore's Paradox
    Theoria 81 (1): 27-47. 2013.
    John Turri gives an example that he thinks refutes what he takes to be “G. E. Moore's view” that omissive assertions such as “It is raining but I do not believe that it is raining” are “inherently ‘absurd'”. This is that of Ellie, an eliminativist who makes such assertions. Turri thinks that these are perfectly reasonable and not even absurd. Nor does she seem irrational if the sincerity of her assertion requires her to believe its content. A commissive counterpart of Ellie is Di, a dialetheist …Read more
  •  32
    Thinking Things Through: An Introduction to Analytical Skills
    with Ilya Farber, T. Brian Mooney, Mark Nowacki, and Yoo Guan Tan
    McGraw-Hill. 2009.
  •  356
    Neil Sinhababu and I presented Backward Clock, an original counterexample to Robert Nozick’s truth-tracking analysis of propositional knowledge. Fred Adams, John Barker and Murray Clarke argue that Backward Clock is no such counterexample. Their argument fails to nullify Backward Clock which also shows that other tracking analyses, such as Dretske’s and one that Adams et al. may well have in mind, are inadequate.
  •  159
    Moore's Paradox in Thought: A Critical Survey
    Philosophy Compass 10 (1): 24-37. 2015.
    It is raining but you don’t believe that it is raining. Imagine silently accepting this claim. Then you believe both that it is raining and that you don’t believe that it is raining. This would be an ‘absurd’ thing to believe,yet what you believe might be true. Itmight be raining, while at the same time, you are completely ignorant of the state of the weather. But how can it be absurd of you to believe something about yourself that might be true of you? This is Moore’s paradox as it occurs in th…Read more
  •  653
    Chalmers and Hájek argue that on an epistemic reading of Ramsey’s test for the rational acceptability of conditionals, it is faulty. They claim that applying the test to each of a certain pair of conditionals requires one to think that one is omniscient or infallible, unless one forms irrational Moore-paradoxical beliefs. I show that this claim is false. The epistemic Ramsey test is indeed faulty. Applying it requires that one think of anyone as all-believing and if one is rational, to think of …Read more
  •  214
    In (2004) I gave an argument for Evans’s principle Whatever justifies me in believing that p also justifies me in believing that I believe that p Hamid Vahid (2005) raises two objections against this argument. I show that the first is harmless and that the second is a non sequitur.
  •  27
    An Introduction to Historical Epistemology [book review] (review)
    Australasian Journal of Philosophy 74 (1): 312-314. 1996.
  •  150
    G. E. Moore famously observed that to say, “ I went to the pictures last Tuesday but I don’t believe that I did” would be “absurd”. Why should it be absurd of me to say something about myself that might be true of me? Moore suggested an answer to this, but as I will show, one that fails. Wittgenstein was greatly impressed by Moore’s discovery of a class of absurd but possibly true assertions because he saw that it illuminates “the logic of assertion”. Wittgenstein suggests a promising relation o…Read more
  •  120
    The absurdities of Moore's paradoxes
    Theoria 48 (1): 38-46. 1982.
    The absurdity of (i) and (ii) arises because asserting 'p' normally expresses a belief that p. Normally, when (i) is asserted, what is conjointly expressed and asserted, i.e. a belief that p and a lack of belief that p, is logically impossible, whereas normally, when (ii) is asserted, it is differently absurd, since what is conjointly expressed and asserted, i.e. a belief that p and a belief that -p, is logically possible, but inconsistent. A possible source of confusion between 'impossible' and…Read more
  •  94
    Moorean absurdities and the nature of assertion
    Australasian Journal of Philosophy 74 (1). 1996.
    I argue that Moore's propositions, for example, 'I went to the pictures last Tuesday but I don't believe that I did' cannot be rationally believed. Their assertors either cannot be rationally believed or cannot be believed to be rational. This analysis is extended to Moorean propositions such as God knows that I am an atheist and I believe that this proposition is false. I then defend the following definition of assertion: anyone asserts that p iff that person expresses a belief that p with the …Read more
  •  22
    Further Reflection on True Successors and Traditions
    Social Epistemology Review and Reply Collective 2 (9): 12-16. 2013.
    In his “Reply to Williams” (2013), a response to my “David-Hillel Ruben’s ‘Traditions and True Successors’: A Critical Reply.” (2013), David Ruben reports that there is much that we disagree about concerning the nature of true succession. I am not entirely persuaded by what he says of these disagreements.
  •  182
    The preface paradox dissolved
    Theoria 53 (2-3): 121-140. 1987.
    The preface paradox strikes us as puzzling because we feel that if a person holds a set of inconsistent beliefs, i.e. beliefs such that at least one of them must be correct, then he should give at least one of them up. Equally, if a person's belief is rational, then he has a right to hold it. Yet the preface example is prima facie a case in which a person holds an inconsistent set of beliefs each of which is rational, and thus a case in which that person has a duty to relinquish what he has a ri…Read more
  •  75
    Foley and Turri have recently given objections to the defeasibility theory of propositional knowledge. Here, I give an objection of a quite different stripe by looking at what the theory must say about knowing that you know. I end with some remarks on how this objection relates to rival theories and how this might be a worry for some of these