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  1. Fixed Points in the Hyperintensional Epistemic $\mu$-Calculus and the KK Principle.Timothy Bowen - manuscript
    This essay provides a novel account of iterated epistemic states. The essay argues that states of epistemic determinacy might be secured by countenancing iterated epistemic states on the model of fixed points in the modal $\mu$-calculus. Despite the epistemic indeterminacy witnessed by the invalidation of modal axiom 4 in the sorites paradox -- i.e. the KK principle: $\square$$\phi$ $\rightarrow$ $\square$$\square$$\phi$ -- a hyperintensional epistemic $\mu$-automaton permits fixed points to entrain a principled means by which to iterate epistemic states and account (...)
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  2. Epistemological Disjunctivism and Anti-luminosity Arguments.David de Bruijn - forthcoming - Erkenntnis:1-21.
    Epistemological disjunctivists hold that perceiving subjects have “reflective access” to factive perceptual support for belief. However, little has been done to elaborate the intended notion of reflection, or introspective awareness more generally. Moreover, critics have pointed out that the disjunctivist conception of “reflective access” can seem vulnerable to varieties of Williamson’s anti-luminosity argument. In this paper I defend disjunctivism from this charge, arguing that it holds the resources for a potent defense of the claim that knowledge of perceptual states is (...)
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  3. What Williamson's anti-luminosity argument really is.Carmelo di Primo, Gaston H. U. I. Bon Hoa, Pierre Douzou & Stephen Sligar - forthcoming - Pacific Philosophical Quarterly.
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  4. Transcendental Knowability, Closure, Luminosity and Factivity: Reply to Stephenson.Jan Heylen & Felipe Morales Carbonell - forthcoming - History of Philosophy & Logical Analysis:1-20.
    Stephenson (2022) has argued that Kant’s thesis that all transcendental truths are transcendentally a priori knowable leads to omniscience of all transcendental truths. His arguments depend on luminosity principles and closure principles for transcendental knowability. We will argue that one pair of a luminosity and a closure principle should not be used, because the closure principle is too strong, while the other pair of a luminosity and a closure principle should not be used, because the luminosity principle is too strong. (...)
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  5. Decision Theory without Luminosity.Yoaav Isaacs & Benjamin A. Levinstein - forthcoming - Mind:fzad037.
    Our decision-theoretic states are not luminous. We are imperfectly reliable at identifying our own credences, utilities and available acts, and thus can never be more than imperfectly reliable at identifying the prescriptions of decision theory. The lack of luminosity affords decision theory a remarkable opportunity — to issue guidance on the basis of epistemically inaccessible facts. We show how a decision theory can guarantee action in accordance with contingent truths about which an agent is arbitrarily uncertain. It may seem that (...)
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  6. Privileged access without luminosity.Giovanni Merlo - forthcoming - In Self-knowledge and Knowledge A Priori. Oxford University Press.
    Williamson’s anti-luminosity argument has been thought to be in tension with the doctrine that we enjoy privileged epistemic access to our own mental states. In this paper, I will argue that the tension is only apparent. Friends of privileged access who accept the conclusion of the argument need not give up the claim that our beliefs about our own mental states are mostly or invariably right, nor the view that mental states are epistemically available to us in a way that (...)
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  7. Safety, Closure, and Extended Methods.Simon Goldstein & John Hawthorne - 2024 - Journal of Philosophy 121 (1):26-54.
    Recent research has identified a tension between the Safety principle that knowledge is belief without risk of error, and the Closure principle that knowledge is preserved by competent deduction. Timothy Williamson reconciles Safety and Closure by proposing that when an agent deduces a conclusion from some premises, the agent’s method for believing the conclusion includes their method for believing each premise. We argue that this theory is untenable because it implies problematically easy epistemic access to one’s methods. Several possible solutions (...)
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  8. Updating without evidence.Yoaav Isaacs & Jeffrey Sanford Russell - 2023 - Noûs 57 (3):576-599.
    Sometimes you are unreliable at fulfilling your doxastic plans: for example, if you plan to be fully confident in all truths, probably you will end up being fully confident in some falsehoods by mistake. In some cases, there is information that plays the classical role of evidence—your beliefs are perfectly discriminating with respect to some possible facts about the world—and there is a standard expected‐accuracy‐based justification for planning to conditionalize on this evidence. This planning‐oriented justification extends to some cases where (...)
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  9. Knowing What It's Like.Andrew Y. Lee - 2023 - Philosophical Perspectives 37 (1):187-209.
    David Lewis—famously—never tasted vegemite. Did he have any knowledge of what it's like to taste vegemite? Most say 'no'; I say 'yes'. I argue that knowledge of what it’s like varies along a spectrum from more exact to more approximate, and that phenomenal concepts vary along a spectrum in how precisely they characterize what it’s like to undergo their target experiences. This degreed picture contrasts with the standard all-or-nothing picture, where phenomenal concepts and phenomenal knowledge lack any such degreed structure. (...)
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  10. KK, Knowledge, Knowability.Weng Kin San - 2023 - Mind 132 (527):605-630.
    kk states that knowing entails knowing that one knows, and K¬K states that not knowing entails knowing that one does not know. In light of the arguments against kk and K¬K⁠, one might consider modally qualified variants of those principles. According to weak kk, knowing entails the possibility of knowing that one knows. And according to weakK¬K⁠, not knowing entails the possibility of knowing that one does not know. This paper shows that weak kk and weakK¬K are much stronger than (...)
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  11. The Qualitative Thesis.David Boylan & Ginger Schultheis - 2022 - Journal of Philosophy 119 (4):196-229.
    The Qualitative Thesis says that if you leave open P, then you are sure of if P, then Q just in case you are sure of the corresponding material conditional. We argue the Qualitative Thesis provides compelling reasons to accept a thesis that we call Conditional Locality, which says, roughly, the interpretation of an indicative conditional depends, in part, on the conditional’s local embedding environment. In the first part of the paper, we present an argument—due to Ben Holguín—showing that, without (...)
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  12. Fragile Knowledge.Simon Goldstein - 2022 - Mind 131 (522):487-515.
    This paper explores the principle that knowledge is fragile, in that whenever S knows that S doesn’t know that S knows that p, S thereby fails to know p. Fragility is motivated by the infelicity of dubious assertions, utterances which assert p while acknowledging higher-order ignorance whether p. Fragility is interestingly weaker than KK, the principle that if S knows p, then S knows that S knows p. Existing theories of knowledge which deny KK by accepting a Margin for Error (...)
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  13. Assertion and the “How do you know?” challenge.Eliran Haziza - 2022 - Synthese 200 (3):1-17.
    One of the central arguments for the knowledge norm of assertion appeals to the fact that it is typically legitimate to respond to an assertion with “How do you know?”, intended as a challenge to the assertion. The legitimacy of the challenge is taken as evidence in favor of the idea that permissible assertion requires knowledge. In this paper, I argue that if the legitimacy of “How do you know?” challenges supports a knowledge norm for assertion, it also supports the (...)
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  14. Indicative Conditionals and Epistemic Luminosity.Matt Hewson & James Ravi Kirkpatrick - 2022 - Mind 131 (521):231–258.
    Kevin Dorst has recently pointed out an apparently puzzling consequence of denying epistemic luminosity: given some natural-sounding bridging principles between knowledge, credence, and indicative conditionals, the denial of epistemic luminosity licenses the knowledge and assertability of abominable-sounding conditionals of the form ⌜If I don’t know that ϕ, then ϕ⌝. We provide a general and systematic examination of this datum by testing Dorst’s claim against various semantics for the indicative conditional in the setting of epistemic logic. Our conclusion is that, regardless (...)
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  15. Is ~ K ~ KP a luminous condition?Martin Smith - 2022 - Asian Journal of Philosophy 1 (1):1-10.
    One of the most intriguing claims in Sven Rosenkranz’s Justification as Ignorance is that Timothy Williamson’s celebrated anti-luminosity argument can be resisted when it comes to the condition ~K~KP—the condition that one is in no position to know that one is in no position to know P. In this paper, I critically assess this claim.
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  16. Practical Knowledge without Luminosity.Bob Beddor & Carlotta Pavese - 2021 - Mind 131 (523):917-934.
    According to a rich tradition in philosophy of action, intentional action requires practical knowledge: someone who acts intentionally knows what they are doing while they are doing it. Piñeros Glasscock argues that an anti-luminosity argument, of the sort developed in Williamson, can be readily adapted to provide a reductio of an epistemic condition on intentional action. This paper undertakes a rescue mission on behalf of an epistemic condition on intentional action. We formulate and defend a version of an epistemic condition (...)
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  17. Updating for Externalists.J. Dmitri Gallow - 2021 - Noûs 55 (3):487-516.
    The externalist says that your evidence could fail to tell you what evidence you do or not do have. In that case, it could be rational for you to be uncertain about what your evidence is. This is a kind of uncertainty which orthodox Bayesian epistemology has difficulty modeling. For, if externalism is correct, then the orthodox Bayesian learning norms of conditionalization and reflection are inconsistent with each other. I recommend that an externalist Bayesian reject conditionalization. In its stead, I (...)
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  18. Losing confidence in luminosity.Simon Goldstein & Daniel Waxman - 2021 - Noûs 55 (4):962-991.
    A mental state is luminous if, whenever an agent is in that state, they are in a position to know that they are. Following Timothy Williamson's Knowledge and Its Limits, a wave of recent work has explored whether there are any non‐trivial luminous mental states. A version of Williamson's anti‐luminosity appeals to a safety‐theoretic principle connecting knowledge and confidence: if an agent knows p, then p is true in any nearby scenario where she has a similar level of confidence in (...)
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  19. Assertion, Implicature, and Iterated Knowledge.Eliran Haziza - 2021 - Ergo: An Open Access Journal of Philosophy 8.
    The present paper argues that there is a knowledge norm for conversational implicature: one may conversationally implicate p only if one knows p. Linguistic data about the cancellation behavior of implicatures and the ways they are challenged and criticized by speakers is presented to support the thesis. The knowledge norm for implicature is then used to present a new consideration in favor of the KK thesis. It is argued that if implicature and assertion have knowledge norms, then assertion requires not (...)
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  20. A Conflict between Indexical Credal Transparency and Relevance Confirmation.Joel Pust - 2021 - Philosophy of Science 88 (3):385-397.
    According to the probabilistic relevance account of confirmation, E confirms H relative to background knowledge K just in case P(H/K&E) > P(H/K). This requires an inequality between the rational degree of belief in H determined relative to two bodies of total knowledge which are such that one (K&E) includes the other (K) as a proper part. In this paper, I argue that it is quite plausible that there are no two possible bodies of total knowledge for ideally rational agents meeting (...)
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  21. Transcendental Knowability and A Priori Luminosity.Andrew Stephenson - 2021 - History of Philosophy & Logical Analysis 25 (1):134-162.
    This paper draws out and connects two neglected issues in Kant’s conception of a priori knowledge. Both concern topics that have been important to contemporary epistemology and to formal epistemology in particular: knowability and luminosity. Does Kant commit to some form of knowability principle according to which certain necessary truths are in principle knowable to beings like us? Does Kant commit to some form of luminosity principle according to which, if a subject knows a priori, then they can know that (...)
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  22. Losing Confidence in Luminosity.Simon Goldstein & Daniel Waxman - 2020 - Noûs (4):1-30.
    A mental state is luminous if, whenever an agent is in that state, they are in a position to know that they are. Following Timothy Williamson’s Knowledge and Its Limits, a wave of recent work has explored whether there are any non-trivial luminous mental states. A version of Williamson’s anti-luminosity appeals to a safety- theoretic principle connecting knowledge and confidence: if an agent knows p, then p is true in any nearby scenario where she has a similar level of confidence (...)
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  23. Rosenkranz’s Logic of Justification and Unprovability.Jan Heylen - 2020 - Journal of Philosophical Logic 49 (6):1243-1256.
    Rosenkranz has recently proposed a logic for propositional, non-factive, all-things-considered justification, which is based on a logic for the notion of being in a position to know, 309–338 2018). Starting from three quite weak assumptions in addition to some of the core principles that are already accepted by Rosenkranz, I prove that, if one has positive introspective and modally robust knowledge of the axioms of minimal arithmetic, then one is in a position to know that a sentence is not provable (...)
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  24. Inexact Knowledge 2.0.Sven Rosenkranz & Julien Dutant - 2020 - Inquiry: An Interdisciplinary Journal of Philosophy (8):1-19.
    Many of our sources of knowledge only afford us knowledge that is inexact. When trying to see how tall something is, or to hear how far away something is, or to remember how long something lasted, we may come to know some facts about the approximate size, distance or duration of the thing in question but we don’t come to know exactly what its size, distance or duration is. In some such situations we also have some pointed knowledge of how (...)
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  25. Some Problems with the Anti‐Luminosity‐Argument.Wim Vanrie - 2020 - Pacific Philosophical Quarterly 101 (3):538-559.
    I argue that no successful version of Williamson's anti‐luminosity‐argument has yet been presented, even if Srinivasan's further elaboration and defence is taken into account. There is a version invoking a coarse‐grained safety condition and one invoking a fine‐grained safety condition. A crucial step in the former version implicitly relies on the false premise that sufficient similarity is transitive. I show that some natural attempts to resolve this issue fail. Similar problems arise for the fine‐grained version. Moreover, I argue that Srinivasan's (...)
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  26. Abominable KK Failures.Kevin Dorst - 2019 - Mind 128 (512):1227-1259.
    KK is the thesis that if you can know p, you can know that you can know p. Though it’s unpopular, a flurry of considerations has recently emerged in its favour. Here we add fuel to the fire: standard resources allow us to show that any failure of KK will lead to the knowability and assertability of abominable indicative conditionals of the form ‘If I don’t know it, p’. Such conditionals are manifestly not assertable—a fact that KK defenders can easily (...)
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  27. Indicative conditionals without iterative epistemology.Ben Holguín - 2019 - Noûs 55 (3):560-580.
    This paper argues that two widely accepted principles about the indicative conditional jointly presuppose the falsity of one of the most prominent arguments against epistemological iteration principles. The first principle about the indicative conditional, which has close ties both to the Ramsey test and the “or‐to‐if” inference, says that knowing a material conditional suffices for knowing the corresponding indicative. The second principle says that conditional contradictions cannot be true when their antecedents are epistemically possible. Taken together, these principles entail that (...)
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  28. When Do Introspection Axioms Matter for Multi-Agent Epistemic Reasoning?Wesley H. Holliday, Yifeng Ding & Cedegao Zhang - 2019 - Electronic Proceedings in Theoretical Computer Science 297:121–139.
    The early literature on epistemic logic in philosophy focused on reasoning about the knowledge or belief of a single agent, especially on controversies about "introspection axioms" such as the 4 and 5 axioms. By contrast, the later literature on epistemic logic in computer science and game theory has focused on multi-agent epistemic reasoning, with the single-agent 4 and 5 axioms largely taken for granted. In the relevant multi-agent scenarios, it is often important to reason about what agent A believes about (...)
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  29. The luminosity of love.Predrag Cicovacki - 2018 - Alhambra, California: Sebastian Press / Western American Diocese of the Serbian Orthodox Church.
    We long to love and to be loved. We also fear love because we risk betrayal by those we love, or we betray them. Predrag Cicovacki's charming book, Luminosity of Love, uses the extraordinary love story of the great unconventional Serbian poet Laza Kostić and the vivacious aristocratic young woman, Lenka Dundjerski, as a starting point for a wide-ranging discussion of the nature of love, its importance in the Western philosophical tradition, and its relevance for living a meaningful life in (...)
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  30. Luminosity in the stream of consciousness.David Jenkins - 2018 - Synthese 198 (Suppl 7):1549-1562.
    Williamson’s “anti-luminosity” argument aims to establish that there are no significant luminous conditions. “Far from forming a cognitive home”, luminous conditions are mere “curiosities”. Even supposing Williamson’s argument succeeds in showing that there are no significant luminous states his conclusion has not thereby been established. When it comes to determining what is luminous, mental events and processes are among the best candidates. It is events and processes, after all, which constitute the stream of consciousness. Judgment, for instance, is plausibly self-conscious. (...)
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  31. The Externalist’s Guide to Fishing for Compliments.Bernhard Salow - 2018 - Mind 127 (507):691-728.
    Suppose you’d like to believe that p, whether or not it’s true. What can you do to help? A natural initial thought is that you could engage in Intentionally Biased Inquiry : you could look into whether p, but do so in a way that you expect to predominantly yield evidence in favour of p. This paper hopes to do two things. The first is to argue that this initial thought is mistaken: intentionally biased inquiry is impossible. The second is (...)
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  32. Epistemic Planning, Epistemic Internalism, and Luminosity.Karl Schafer - 2018 - In Conor McHugh, Jonathan Way & Daniel Whiting (eds.), Metaepistemology. Oxford: Oxford University Press.
    In in this paper, I make use of an “doxastic planning model” of epistemic evaluation to argue for a form of epistemic internalism. In doing so, I begin by responding to a recent argument of Schoenfield’s against my previous attempt to develop such an argument. In doing so, I distinguish a variety of ways that argument might be understood, and discuss how both internalists and externalists might make use of the ideas within it. Then I argue that, despite these complexities, (...)
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  33. Luminosity Guaranteed.Wolfgang Barz - 2017 - Pacific Philosophical Quarterly 98 (S1):480-496.
    This article aims to show that Williamson's anti-luminosity argument does not succeed if we presuppose a constitutive connection between the phenomenal and the doxastic. In contrast to other luminists, however, my strategy is not to critically focus on the refined safety condition in terms of degrees of confidence that anti-luminists typically use in this context. Instead, I will argue that, given a certain conception of what Chalmers calls ‘direct phenomenal concepts,’ luminosity is guaranteed even if the refined safety condition in (...)
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  34. Enough is Enough: Austin on Knowing.Guy Longworth - 2017 - In Savas L. Tsohatzidis (ed.), Interpreting J. L. Austin: Critical Essays. Oxford, UK: Cambridge University Press. pp. 186–205.
  35. Luminosity and the KK thesis.Robert Stalnaker - 2015 - In Sanford Goldberg (ed.), Externalism, Self-Knowledge, and Skepticism: New Essays. Cambridge University Press. pp. 19-40.
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  36. Encounters of mind: luminosity and personhood in Indian and Chinese thought.Douglas L. Berger - 2014 - Albany: SUNY Press.
    Discusses the journey of Buddhist ideas on awareness and personhood from India to China. Encounters of Mind explores a crucial step in the philosophical journey of Buddhism from India to China, and what influence this step, once taken, had on Chinese thought in a broader scope. The relationship of concepts of mind, or awareness, to the constitution of personhood in Chinese traditions of reflection was to change profoundly after the Cognition School of Buddhism made its way to China during the (...)
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  37. How to Moore a Gettier: Notes on the Dark Side of Knowledge.Rodrigo Borges - 2014 - Logos and Episteme 5 (2):133-140.
    The Gettier Problem and Moore’s Paradox are related in a way that is unappreciated by philosophers. If one is in a Gettier situation, then one is also in a Moorean situation. The fact that S is in a Gettier situation (the fact that S is “Gettiered”), like the fact that S is in a Moorean situation (the fact that S is “Moored”), cannot (in the logical sense of “cannot”) be known by S while S is in that situation. The paper (...)
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  38. The Many Faces of Closure and Introspection: An Interactive Perspective.Patrick Allo - 2013 - Journal of Philosophical Logic 42 (1):91-124.
    In this paper I present a more refined analysis of the principles of deductive closure and positive introspection. This analysis uses the expressive resources of logics for different types of group knowledge, and discriminates between aspects of closure and computation that are often conflated. The resulting model also yields a more fine-grained distinction between implicit and explicit knowledge, and places Hintikka’s original argument for positive introspection in a new perspective.
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  39. Reason and Experience in Buddhist Epistemology.Christian Coseru - 2013 - In Steven M. Emmanuel (ed.), A Companion to Buddhist Philosophy. West Sussex, UKL: John Wiley & Sons, Inc.. pp. 241–255.
    Among the key factors that play a crucial role in the acquisition of knowledge, Buddhist philosophers list (i) the testimony of sense experience, (ii) introspective awareness (iii) inferences drawn from these directs modes of acquaintance, and (iv) some version of coherentism, so as guarantee that truth claims remains consistent across a diverse philosophical corpus. This paper argues that when Buddhists employ reason, they do so primarily in order to advance a range of empirical and introspective claims. As a result, reasoning, (...)
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  40. Margin for error semantics and signal perception.David Spector - 2013 - Synthese 190 (15):3247-3263.
    A joint modelling of objective worlds and subjective perceptions within two-dimensional semantics eliminates the margin for error principle and solves the epistemic sorites paradox. Two objective knowledge modalities can be defined in two-dimensional frames accounting for subjective perceptions: “necessary knowledge” (NK) and “possible knowledge” (PK), the latter being better suited to the interpretation of knowledge utterances. Two-dimensional semantics can in some cases be reduced to one-dimensional ones, by defining accessibility relations between objective worlds that reflect subjective perceptions: NK and PK (...)
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  41. Are We Luminous?Amia Srinivasan - 2013 - Philosophy and Phenomenological Research 90 (2):294-319.
    Since its appearance over a decade ago, Timothy Williamson's anti-luminosity argument has come under sustained attack. Defenders of the luminous overwhelmingly object to the argument's use of a certain margin-for-error premise. Williamson himself claims that the premise follows easily from a safety condition on knowledge together with his description of the thought experiment. But luminists argue that this is not so: the margin-for-error premise either requires an implausible interpretation of the safety requirement on knowledge, or it requires other equally implausible (...)
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  42. Margins and Errors.Brian Weatherson - 2013 - Inquiry: An Interdisciplinary Journal of Philosophy 56 (1):63-76.
    Recently, Timothy Williamson has argued that considerations about margins of errors can generate a new class of cases where agents have justified true beliefs without knowledge. I think this is a great argument, and it has a number of interesting philosophical conclusions. In this note I’m going to go over the assumptions of Williamson’s argument. I’m going to argue that the assumptions which generate the justification without knowledge are true. I’m then going to go over some of the recent arguments (...)
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  43. Luminosity and determinacy.Elia Zardini - 2013 - Philosophical Studies 165 (3):765-786.
    The paper discusses some ways in which the phenomenon of borderline cases may be thought to bear on the traditional philosophical idea that certain domains of facts are fully open to our view. The discussion focusses on a very influential argument (due to Tim Williamson) to the effect that, roughly, no such domains of luminous facts exist. Many commentators have felt that the vagueness unavoidably inherent in the description of the facts that are best candidates for being luminous plays an (...)
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  44. Discrimination and Self-Knowledge.Patrick Greenough - 2012 - In Declan Smithies & Daniel Stoljar (eds.), Introspection and Consciousness. Oxford University Press.
    In this paper I show that a variety of Cartesian Conceptions of the mental are unworkable. In particular, I offer a much weaker conception of limited discrimination than the one advanced by Williamson (2000) and show that this weaker conception, together with some plausible background assumptions, is not only able to undermine the claim that our core mental states are luminous (roughly: if one is in such a state then one is in a position to know that one is) but (...)
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  45. Mentalism and Epistemic Transparency.Declan Smithies - 2012 - Australasian Journal of Philosophy 90 (4):723-741.
    Questions about the transparency of evidence are central to debates between factive and non-factive versions of mentalism about evidence. If all evidence is transparent, then factive mentalism is false, since no factive mental states are transparent. However, Timothy Williamson has argued that transparency is a myth and that no conditions are transparent except trivial ones. This paper responds by drawing a distinction between doxastic and epistemic notions of transparency. Williamson's argument may show that no conditions are doxastically transparent, but it (...)
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  46. Luminosity and vagueness.Elia Zardini - 2012 - Dialectica 66 (3):375-410.
    The paper discusses some ways in which vagueness and its phenomena may be thought to impose certain limits on our knowledge and, more specifically, may be thought to bear on the traditional philosophical idea that certain domains of facts are luminous, i.e., roughly, fully open to our view. The discussion focuses on a very influential argument to the effect that almost no such interesting domains exist. Many commentators have felt that the vagueness unavoidably inherent in the description of the facts (...)
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  47. The Modern Philosophical Revolution: The Luminosity of Existence. By David Walsh.T. Remington Harkness - 2011 - Heythrop Journal 52 (1):153-154.
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  48. Luminosity, Reliability, and the Sorites.Stewart Cohen - 2010 - Philosophy and Phenomenological Research 81 (3):718-730.
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  49. Skeptics without borders.Kevin Meeker & Ted Poston - 2010 - American Philosophical Quarterly 47 (3):223.
    Timothy Williamson’s anti luminosity argument has received considerable attention. Escaping unnoticed, though, is a strikingly similar argument from David Hume. This paper highlights some of the arresting parallels between Williamson’s reasoning and Hume’s that will allow us to appreciate more deeply the plausibility of Williamson’s reasoning and to understand how, following Hume, we can extend this reasoning to undermine the “luminosity” of simple necessary truths. More broadly the parallels help us to identify a common skeptical predicament underlying both arguments, which (...)
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  50. Luminosity and indiscriminability.Jonathan Vogel - 2010 - Philosophical Perspectives 24 (1):547-572.
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