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J. Michael Dunn [58]John Dunn [26]Jeffrey Dunn [6]Jeff Dunn [5]
James D. G. Dunn [5]J. M. Dunn [4]John C. Dunn [3]J. C. Dunn [2]

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Profile: Jon Michael Dunn (Indiana University)
Profile: Jeff Dunn (DePauw University)
Profile: James Edward Dunn (Nottingham University)
Profile: Jenna Dunn (Edith Cowan University)
Profile: James Dunn (University of Edinburgh)
  1. Kristoffer Ahlstrom-Vij & Jeff Dunn (forthcoming). A Defence of Epistemic Consequentialism. Philosophical Quarterly.
    Epistemic consequentialists maintain that the epistemically right (e.g., the justified) is to be understood in terms of conduciveness to the epistemic good (e.g., true belief). Given the wide variety of epistemological approaches that assume some form of epistemic consequentialism, and the controversies surrounding consequentialism in ethics, it is surprising that epistemic consequentialism remains largely uncontested. However, in a recent paper, Selim Berker has provided arguments that allegedly lead to a ‘rejection’ of epistemic consequentialism. In the present paper, it is shown (...)
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  2. James D. G. Dunn (forthcoming). Book Review: Jesus and the Logic of History. [REVIEW] Interpretation 56 (1):101-102.
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  3. James D. G. Dunn (forthcoming). Book Review: Paul, the Law, and the Covenant. [REVIEW] Interpretation 58 (3):319-321.
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  4. Jeff Dunn (forthcoming). Reliability for Degrees of Belief. Philosophical Studies:1-24.
    We often evaluate belief-forming processes, agents, or entire belief states for reliability. This is normally done with the assumption that beliefs are all-or-nothing. How does such evaluation go when we’re considering beliefs that come in degrees? I consider a natural answer to this question that focuses on the degree of truth-possession had by a set of beliefs. I argue that this natural proposal is inadequate, but for an interesting reason. When we are dealing with all-or-nothing belief, high reliability leads to (...)
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  5. Katalin Bimbó & J. Michael Dunn (2014). Extracting BB′IW Inhabitants of Simple Types From Proofs in the Sequent Calculus {LT_to^{T}} for Implicational Ticket Entailment. Logica Universalis 8 (2):141-164.
    The decidability of the logic of pure ticket entailment means that the problem of inhabitation of simple types by combinators over the base { B, B′, I, W } is decidable too. Type-assignment systems are often formulated as natural deduction systems. However, our decision procedure for this logic, which we presented in earlier papers, relies on two sequent calculi and it does not yield directly a combinator for a theorem of ${T_\to}$ . Here we describe an algorithm to extract an (...)
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  6. Jeffrey Dunn (2014). Inferential Evidence. American Philosophical Quarterly 51 (3):203-213.
    Consider: -/- The Evidence Question: When, and under what conditions does an agent have proposition E as evidence (at t)? -/- Timothy Williamson's (2000) answer to this question is the well-known E = K thesis: -/- E = K: E is a member of S's evidence set at t iff S knows E at t. -/- I will argue that this answer is inconsistent with the version of Bayesianism that Williamson advocates. This is because E = K allows an agent (...)
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  7. Katalin Bimbó & J. Michael Dunn (2013). On the Decidability of Implicational Ticket Entailment. Journal of Symbolic Logic 78 (1):214-236.
    The implicational fragment of the logic of relevant implication, $R_\to$ is known to be decidable. We show that the implicational fragment of the logic of ticket entailment, $T_\to$ is decidable. Our proof is based on the consecution calculus that we introduced specifically to solve this 50-year old open problem. We reduce the decidability problem of $T_\to$ to the decidability problem of $R_\to$. The decidability of $T_\to$ is equivalent to the decidability of the inhabitation problem of implicational types by combinators over (...)
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  8. J. Michael Dunn (2013). A Guide to the Floridi Keys. Metascience 22 (1):93-98.
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  9. J. Michael Dunn (2013). A Guide to the Floridi Keys: Luciano Floridi: The Philosophy of Information. Oxford: Oxford University Press, 2011, Xx+ 405pp,£ 37.50 HB (Essay Review). [REVIEW] Metascience 22 (1):93-98.
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  10. J. Michael Dunn, Lawrence S. Moss & Zhenghan Wang (2013). Editors' Introduction: The Third Life of Quantum Logic: Quantum Logic Inspired by Quantum Computing. [REVIEW] Journal of Philosophical Logic 42 (3):443-459.
  11. Jeff Dunn (2013). A Theory of Knowledge and Belief Change: Formal and Experimental Perspectives, by Masaharu Mizumoto. Australasian Journal of Philosophy 91 (2):413-415.
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  12. Jeff Dunn (2013). A Theory of Knowledge and Belief Change: Formal and Experimental Perspectives, by Masaharu Mizumoto: Japan: Hokkaido University Press, 2011, Pp. V+ 298,¥ 7500 (Hardback). [REVIEW] Australasian Journal of Philosophy 91 (2):413-415.
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  13. Jc Beall, Ross Brady, J. Michael Dunn, A. P. Hazen, Edwin Mares, Robert K. Meyer, Graham Priest, Greg Restall, David Ripley, John Slaney & Richard Sylvan (2012). On the Ternary Relation and Conditionality. Journal of Philosophical Logic 41 (3):595 - 612.
    One of the most dominant approaches to semantics for relevant (and many paraconsistent) logics is the Routley-Meyer semantics involving a ternary relation on points. To some (many?), this ternary relation has seemed like a technical trick devoid of an intuitively appealing philosophical story that connects it up with conditionality in general. In this paper, we respond to this worry by providing three different philosophical accounts of the ternary relation that correspond to three conceptions of conditionality. We close by briefly discussing (...)
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  14. Katalin Bimbó & J. Michael Dunn (2012). New Consecution Calculi for $R^{T}_{\To}$. Notre Dame Journal of Formal Logic 53 (4):491-509.
    The implicational fragment of the logic of relevant implication, $R_{\to}$ is one of the oldest relevance logics and in 1959 was shown by Kripke to be decidable. The proof is based on $LR_{\to}$ , a Gentzen-style calculus. In this paper, we add the truth constant $\mathbf{t}$ to $LR_{\to}$ , but more importantly we show how to reshape the sequent calculus as a consecution calculus containing a binary structural connective, in which permutation is replaced by two structural rules that involve $\mathbf{t}$ (...)
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  15. Katalin Bimbó & J. Michael Dunn (2012). New Consecution Calculi for $R^{T}_{To}$. Notre Dame Journal of Formal Logic 53 (4):491-509.
    The implicational fragment of the logic of relevant implication, $R_{\to}$ is one of the oldest relevance logics and in 1959 was shown by Kripke to be decidable. The proof is based on $LR_{\to}$, a Gentzen-style calculus. In this paper, we add the truth constant $\mathbf{t}$ to $LR_{\to}$, but more importantly we show how to reshape the sequent calculus as a consecution calculus containing a binary structural connective, in which permutation is replaced by two structural rules that involve $\mathbf{t}$. This calculus, (...)
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  16. Jeff Dunn (2012). Virtual Worlds and Moral Evaluation. Ethics and Information Technology 14 (4):255-265.
    Consider the multi-user virtual worlds of online games such as EVE and World of Warcraft, or the multi-user virtual world of Second Life. Suppose a player performs an action in one of these worlds, via his or her virtual character, which would be wrong, if the virtual world were real. What is the moral status of this virtual action? In this paper I consider arguments for and against the Asymmetry Thesis: the thesis that such virtual actions are never wrong. I (...)
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  17. Jeffrey Dunn (2012). Evidential Externalism. Philosophical Studies 158 (3):435-455.
    Consider the Evidence Question: When and under what conditions is proposition P evidence for some agent S? Silins (Philos Perspect 19:375–404, 2005) has recently offered a partial answer to the Evidence Question. In particular, Silins argues for Evidential Internalism (EI), which holds that necessarily, if A and B are internal twins, then A and B have the same evidence. In this paper I consider Silins’s argument, and offer two response on behalf of Evidential Externalism (EE), which is the denial of (...)
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  18. Jeffrey Dunn (2012). Reliabilism: Holistic or Simple? Episteme 9 (3):225-233.
    Simple versions of Reliabilism about justification say that S's believing that p is justified if and only if the belief was produced by a belief-forming process that is reliable above some high threshold. Alvin Goldman, in Epistemology and Cognition, argues for a more complex version of the view according to which it is total epistemic systems that are assessed for reliability, rather than individual processes. Why prefer this more complex version of Reliabilism? Two reasons suggest themselves. First, it seems that (...)
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  19. Jeffrey Dunn (2011). Fried Eggs, Thermodynamics, and the Special Sciences. British Journal for the Philosophy of Science 62 (1):71-98.
    David Lewis ([1986b]) gives an attractive and familiar account of counterfactual dependence in the standard context. This account has recently been subject to a counterexample from Adam Elga ([2000]). In this article, I formulate a Lewisian response to Elga’s counterexample. The strategy is to add an extra criterion to Lewis’s similarity metric, which determines the comparative similarity of worlds. This extra criterion instructs us to take special science laws into consideration as well as fundamental laws. I argue that the Second (...)
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  20. John Dunn (2011). Seeing in and Through Time. In Alexandra Lianeri (ed.), The Western Time of Ancient History: Historiographical Encounters with the Greek and Roman Pasts. Cambridge University Press. 307.
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  21. J. Michael Dunn (2010). Contradictory Information: Too Much of a Good Thing. [REVIEW] Journal of Philosophical Logic 39 (4):425 - 452.
    Both I and Belnap, motivated the "Belnap-Dunn 4-valued Logic" by talk of the reasoner being simply "told true" (T) and simply "told false" (F), which leaves the options of being neither "told true" nor "told false" (N), and being both "told true" and "told false" (B). Belnap motivated these notions by consideration of unstructured databases that allow for negative information as well as positive information (even when they conflict). We now experience this on a daily basis with the Web. But (...)
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  22. Jeffrey Dunn (2010). Bayesian Epistemology and Having Evidence. Dissertation, University of Massachusetts, Amherst
    Bayesian Epistemology is a general framework for thinking about agents who have beliefs that come in degrees. Theories in this framework give accounts of rational belief and rational belief change, which share two key features: (i) rational belief states are represented with probability functions, and (ii) rational belief change results from the acquisition of evidence. This dissertation focuses specifically on the second feature. I pose the Evidence Question: What is it to have evidence? Before addressing this question we must have (...)
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  23. John Dunn (2010). Tracking Democracy. Political Theory 38 (1):106 - 110.
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  24. John Dunn (2010). The Significance of Hobbes's Conception of Power. Critical Review of International Social and Political Philosophy 13 (2):417-433.
    Hobbes held distinctive views about the role of power in organizing and directing human life and posing the central problems of politics. His English vocabulary (unlike his Latin vocabulary) conflates conceptions of force, instrumental capacity, right and entitlement in a single term. It remains controversial how far he changed his conception of human nature over the last four decades of his intellectual life from a more to a less egoistic version, and how far, if he did, any such change modified (...)
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  25. Metaphysics Theta & John Dunn (2010). Abbott, Edwin Abbott. 2010. Flatland. Cambridge: Cambridge University Press. Ix+ 294 Pp. Altman, Andrew. 2009. A Liberal Theory of International Justice. Oxford: Oxford University Press. 233 Pp. Bailer-Jones, Daniela. 2009. Scientific Models in Philosophy of Science. Pittsburgh. [REVIEW] Philosophical Review 119 (3).
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  26. Katalin Bimbó & J. Michael Dunn (2009). Symmetric Generalized Galois Logics. Logica Universalis 3 (1):125-152.
    Symmetric generalized Galois logics (i.e., symmetric gGl s) are distributive gGl s that include weak distributivity laws between some operations such as fusion and fission. Motivations for considering distribution between such operations include the provability of cut for binary consequence relations, abstract algebraic considerations and modeling linguistic phenomena in categorial grammars. We represent symmetric gGl s by models on topological relational structures. On the other hand, topological relational structures are realized by structures of symmetric gGl s. We generalize the weak (...)
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  27. Katalin Bimbó, J. Michael Dunn & Roger D. Maddux (2009). Relevance Logics and Relation Algebras. Review of Symbolic Logic 2 (1):102-131.
    Relevance logics are known to be sound and complete for relational semantics with a ternary accessibility relation. This paper investigates the problem of adequacy with respect to special kinds of dynamic semantics (i.e., proper relation algebras and relevant families of relations). We prove several soundness results here. We also prove the completeness of a certain positive fragment of R as well as of the first-degree fragment of relevance logics. These results show that some core ideas are shared between relevance logics (...)
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  28. Richard Bourke, Raymond Geuss & John Dunn (eds.) (2009). Political Judgement: Essays for John Dunn. Cambridge University Press.
    This book by leading international scholars in the fields of history, philosophy and politics restores the subject to a place at the very centre of political theory and practice.
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  29. James Dg Dunn (2008). The New Perspective on Paul. Hts Theological Studies 64 (4):1956-1958.
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  30. Jeffrey Dunn (2008). The Obscure Act of Perception. Philosophical Studies 139 (3):367-393.
    Finding disjunctivist versions of direct realism unexplanatory, Mark Johnston [(2004). Philosophical Studies, 120, 113–183] offers a non-disjunctive version of direct realism in its place and gives a defense of this view from the problem of hallucination. I will attempt to clarify the view that he presents and then argue that, once clarified, it either does not escape the problem of hallucination or does not look much like direct realism.
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  31. John O'Toole Julie Dunn (2008). Learning in Dramatic and Virtual Worlds: What Do Students Say About Complementarity and Future Directions? Journal of Aesthetic Education 42 (4):pp. 89-104.
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  32. Ben R. Newell & John C. Dunn (2008). Dimensions in Data: Testing Psychological Models Using State-Trace Analysis. Trends in Cognitive Sciences 12 (8):285-290.
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  33. John O'Toole & Julie Dunn (2008). Learning in Dramatic and Virtual Worlds: What Do Students Say About Complementarity and Future Directions? Journal of Aesthetic Education 42 (4):89-104.
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  34. Katalin Bimbó & J. ~Michael Dunn (2005). Relational Semantics for Kleene Logic and Action Logic. Notre Dame Journal of Formal Logic 46 (4):461-490.
    Kleene algebras and action logic were proposed to be solutions to the finite axiomatization problem of the algebra of regular sets (of strings). They are treated here as nonclassical logics—with Hilbert-style axiomatizations and semantics. We also provide intuitive accounts in terms of information states of the semantics which provide further insights into the formalisms. The three types of "Kripke-style'' semantics which we define develop insights from gaggle theory, and from our four-valued and generalized Kripke semantics for the minimal substructural logic. (...)
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  35. J. Michael Dunn, Mai Gehrke & Alessandra Palmigiano (2005). Canonical Extensions and Relational Completeness of Some Substructural Logics. Journal of Symbolic Logic 70 (3):713 - 740.
    In this paper we introduce canonical extensions of partially ordered sets and monotone maps and a corresponding discrete duality. We then use these to give a uniform treatment of completeness of relational semantics for various substructural logics with implication as the residual(s) of fusion.
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  36. J. Michael Dunn, Tobias J. Hagge, Lawrence S. Moss & Zhenghan Wang (2005). Quantum Logic as Motivated by Quantum Computing. Journal of Symbolic Logic 70 (2):353 - 359.
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  37. J. Michael Dunn & Chunlai Zhou (2005). Negation in the Context of Gaggle Theory. Studia Logica 80 (2-3):235 - 264.
    We study an application of gaggle theory to unary negative modal operators. First we treat negation as impossibility and get a minimal logic system Ki that has a perp semantics. Dunn's kite of different negations can be dealt with in the extensions of this basic logic Ki. Next we treat negation as “unnecessity” and use a characteristic semantics for different negations in a kite which is dual to Dunn's original one. Ku is the minimal logic that has a (...)
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  38. John Dunn & Tony Wrigley (2005). Thomas Peter Ruffell Laslett, 1915-2001. Proceedings of the British Academy 130:109-129.
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  39. James Dg Dunn (2004). CH Dodd and New Testament Studies. Bulletin of the John Rylands Library 86 (3):55-75.
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  40. John Dunn (2004). The Limits of Lockean Rights in Property. International Studies in Philosophy 36 (1):304-305.
  41. John Dunn (2003). Locke: A Very Short Introduction. Oxford University Press.
    John Locke (1632-1704) one of the greatest English philosophers of the late seventeenth and early eighteenth century, argued in his masterpiece, An Essay Concerning Human Understanding, that our knowledge is founded in experience and reaches us principally through our senses; but its message has been curiously misunderstood. In this book John Dunn shows how Locke arrived at his theory of knowledge, and how his exposition of the liberal values of toleration and responsible government formed the backbone of enlightened European thought (...)
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  42. Jonathan Dunn (2003). Have We Changed Our View of the Unconscious in Contemporary Clinical Work? Journal of the American Psychoanalytic Association 51 (3):941-955.
  43. J. Michael Dunn (2001). Algebraic Methods in Philosophical Logic. Oxford University Press.
    This comprehensive text demonstrates how various notions of logic can be viewed as notions of universal algebra.
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  44. J. Michael Dunn & Katalin Bimb� (2001). Four-Valued Logic. Notre Dame Journal of Formal Logic 42 (3):171-192.
    Four-valued semantics proved useful in many contexts from relevance logics to reasoning about computers. We extend this approach further. A sequent calculus is defined with logical connectives conjunction and disjunction that do not distribute over each other. We give a sound and complete semantics for this system and formulate the same logic as a tableaux system. Intensional conjunction (fusion) and its residuals (implications) can be added to the sequent calculus straightforwardly. We extend a simplified version of the earlier semantics for (...)
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  45. Yaroslav Shramko, J. Michael Dunn & Tatsutoshi Takenaka (2001). The Trilaticce of Constructive Truth Values. Journal of Logic and Computation 11 (1):761--788.
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  46. J. Michael Dunn (2000). Partiality and its Dual. Studia Logica 66 (1):5-40.
    This paper explores allowing truth value assignments to be undetermined or "partial" (no truth values) and overdetermined or "inconsistent" (both truth values), thus returning to an investigation of the four-valued semantics that I initiated in the sixties. I examine some natural consequence relations and show how they are related to existing logics, including ukasiewicz's three-valued logic, Kleene's three-valued logic, Anderson and Belnap's (first-degree) relevant entailments, Priest's "Logic of Paradox", and the first-degree fragment of the Dunn-McCall system "R-mingle". None of these (...)
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  47. John Dunn (1998). Implicit Memory and Amnesia. In K. Kirsner & G. Speelman (eds.), Implicit and Explicit Mental Processes. Lawrence Erlbaum. 99--117.
  48. R. K. Meyer, K. Bimbó & J. M. Dunn (1998). Dual Combinators Bite the Dust. Bulletin of Symbolic Logic 4:463-464.
     
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  49. J. Michael Dunn (1997). A Logical Framework for the Notion of Natural Property. In John Earman & John Norton (eds.), The Cosmos of Science. University of Pittsburgh Press. 6--458.
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  50. James D. G. Dunn (1997). He Will Come Again. Interpretation 51 (1):42-56.
    Biblical descriptions of Christ's second coming are diverse and metaphorical. To read them literally is to diminish the resilient power of Christian hope, which is centered in the revelation of Christ already given.
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