11 found
Order:
See also
Richard Pettigrew
Bristol University
  1. What is Conditionalization and Why Should We Do It?Richard Pettigrew - manuscript
    Conditionalization is one of the central norms of Bayesian epistemology. But there are a number of competing formulations, and a number of arguments that purport to establish it. In this paper, I explore which formulations of the norm are supported by which arguments. In their standard formulations, each of the arguments I consider here depends on the same assumption, which I call Deterministic Updating. I will investigate whether it is possible to amend these arguments so that they no longer depend (...)
    Download  
     
    Export citation  
     
    Bookmark  
  2. Transformative Experience and Decision Theory.Richard Pettigrew - 2015 - Philosophy and Phenomenological Research 91 (3):766-774.
    This paper is part of a book symposium for L. A. Paul (2014) Transformative Experience (OUP).
    Download  
     
    Export citation  
     
    Bookmark   14 citations  
  3. What is Justified Credence?Richard Pettigrew - manuscript
    In this paper, we seek a reliabilist account of justified credence. Reliabilism about justified beliefs comes in two varieties: process reliabilism (Goldman, 1979, 2008) and indicator reliabilism (Alston, 1988, 2005). Existing accounts of reliabilism about justified credence comes in the same two varieties: Jeff Dunn (2015) proposes a version of process reliabilism, while Weng Hong Tang (2016) offers a version of indicator reliabilism. As we will see, both face the same objection. If they are right about what justification is, it (...)
    Download  
     
    Export citation  
     
    Bookmark  
  4. Choosing for Changing Selves.Richard Pettigrew - manuscript
    *This is the first draft of this book* -/- What you value and the extent to which you value it changes over the course of your life. A person might currently greatly value pursuing philosophy, and value spending time in nature much less; but, having watched their parents as they have grown older, and noting that they are very much like their parents, that person might have good reason to think that they will value the pursuit of philosophy much less (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  5. On the Accuracy of Group Credences.Richard Pettigrew - manuscript
    to appear in Szabó Gendler, T. & J. Hawthorne (eds.) Oxford Studies in Epistemology volume 6 -/- We often ask for the opinion of a group of individuals. How strongly does the scientific community believe that the rate at which sea levels are rising increased over the last 200 years? How likely does the UK Treasury think it is that there will be a recession if the country leaves the European Union? What are these group credences that such questions request? (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  6. Epistemic Utility Theory and the Normativity of Logic.Richard Pettigrew - manuscript
    How does logic relate to rational belief? Is logic normative for belief, as some say? What, if anything, do facts about logical consequence tell us about norms of doxastic rationality? In this paper, we consider a range of putative logic-rationality bridge principles. These purport to relate facts about logical consequence to norms that govern the rationality of our beliefs and credences. To investigate these principles, we deploy a novel approach, namely, epistemic utility theory. That is, we assume that doxastic attitudes (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  7. Veritism, Epistemic Risk, and the Swamping Problem.Richard Pettigrew - manuscript
    Veritism says that the fundamental source of epistemic value for a doxastic state is the extent to which it represents the world correctly—that is, its fundamental epistemic value is determined entirely by its truth or falsity. The Swamping Problem says that Veritism is incompatible with two pre-theoretic beliefs about epistemic value (Zagzebski, 2003; Kvanvig, 2003): -/- (I) a true justified belief is more (epistemically) valuable than a true unjustified belief; -/- (II) a false justified belief is more (epistemically) valuable than (...)
    Download  
    Translate
     
     
    Export citation  
     
    Bookmark  
  8.  81
    On the Expected Utility Objection to the Dutch Book Argument for Probabilism.Richard Pettigrew - manuscript
    The Dutch Book Argument for Probabilism assumes Ramsey's Thesis (RT), which purports to determine the prices an agent is rationally required to pay for a bet. Recently, a new objection to Ramsey's Thesis has emerged (Hedden 2013, Wronski & Godziszewski 2017, Wronski 2018)--I call this the Expected Utility Objection. According to this objection, it is Maximise Subjective Expected Utility (MSEU) that determines the prices an agent is required to pay for a bet, and this often disagrees with Ramsey's Thesis. I (...)
    Download  
     
    Export citation  
     
    Bookmark  
  9. Transformative Experience and the Knowledge Norms for Action: Moss on Paul’s Challenge to Decision Theory.Richard Pettigrew - manuscript
    to appear in Lambert, E. and J. Schwenkler (eds.) Transformative Experience (OUP) -/- L. A. Paul (2014, 2015) argues that the possibility of epistemically transformative experiences poses serious and novel problems for the orthodox theory of rational choice, namely, expected utility theory — I call her argument the Utility Ignorance Objection. In a pair of earlier papers, I responded to Paul’s challenge (Pettigrew 2015, 2016), and a number of other philosophers have responded in similar ways (Dougherty, et al. 2015, Harman (...)
    Download  
     
    Export citation  
     
    Bookmark  
  10. What We Talk About When We Talk About Numbers.Richard Pettigrew - manuscript
    In this paper, I describe and motivate a new species of mathematical structuralism, which I call Instrumental Nominalism about Set-Theoretic Structuralism. As the name suggests, this approach takes standard Set-Theoretic Structuralism of the sort championed by Bourbaki and removes its ontological commitments by taking an instrumental nominalist approach to that ontology of the sort described by Joseph Melia and Gideon Rosen. I argue that this avoids all of the problems that plague other versions of structuralism.
    Download  
     
    Export citation  
     
    Bookmark  
  11.  53
    The Open Handbook of Formal Epistemology.Richard Pettigrew & Jonathan Weisberg (eds.) - 2019 - PhilPapers Foundation.
    In formal epistemology, we use mathematical methods to explore the questions of epistemology and rational choice. What can we know? What should we believe and how strongly? How should we act based on our beliefs and values? We begin by modelling phenomena like knowledge, belief, and desire using mathematical machinery, just as a biologist might model the fluctuations of a pair of competing populations, or a physicist might model the turbulence of a fluid passing through a small aperture. Then, we (...)
    Download  
     
    Export citation  
     
    Bookmark