Extended Rationality: A Hinge Epistemology provides a novel account of the structure of epistemic justification. Its central claim builds upon Wittgenstein's idea in On Certainty that epistemic justifications hinge on some basic assumptions and that epistemic rationality extends to these very hinges. It exploits these ideas to address major problems in epistemology, such as the nature of perceptual justifications, external world skepticism, epistemic relativism, the epistemic status of basic logical laws, of the Principle of the Uniformity of Nature, of our (...) belief in the existence of the past and of other minds, and the nature of testimonial justification. Along the way, further technical issues, such as the scope of the Principle of Closure of epistemic operators under known entailment, the notion of transmission failure, and the existence of entitlements are addressed in new and illuminating ways. (shrink)

The paper addresses the issue of human diagrammatic reasoning in the context of Euclidean geometry. It develops several philosophical categories which are useful for a description and an analysis of our experience while reasoning with diagrams. In particular, it draws the attention to the role of seeing-as; it analyzes its implications for proofs in Euclidean geometry and ventures the hypothesis that geometrical judgments are analytic and a priori, after all.

I argue that the debate about the reason-giving character of perception, and, derivatively, the contemporary debate about the nature of the conceptual content of perception, is best viewed as a confrontation with refined versions of the following three independently plausible, yet mutually inconsistent, propositions: Perceptual apprehension Some perceptions provide reasons directly Exclusivity Only beliefs provide reasons directly Bifurcation No perception is a belief I begin with an evaluation and refinement of each proposition so as to crystallize the source of the (...) difficulties that dominate our thinking about the reason-giving character of perception. I argue that the contemporary literature is broadly split between those denying Bifurcation and those denying Perceptual apprehension. Though Exclusivity, too, has been target to criticism, its grip on our thinking has all too often been underestimated. As a result, a proper denial or modification of Exclusivity is yet wanting. Overcoming Exclusivity involves a considerable challenge that has not been adequately acknowledged or met—to develop a substantive account of nonconceptual apprehension. Getting a clearer understanding of the nature, the source, and possible resolution of this challenge is the primary aim of this paper. (shrink)

I defend both conceptualists and nonconceptualists against an attack which has been leveled at them by critics such as Byrne (Perception and conceptual content In: Steup M, Sosa E (eds) Contemporary debates in epistemology. Blackwell, Malden, pp 231-250, 2005), Speaks (Philos Rev 114:359–398, 2005), and Crowther (Erkenntnis 65:5–276, 2006). They distinguish a ‘state’ reading and a ‘content’ reading of ‘(non)conceptual’ and argue that many arguments on either side support only the respective state views, not the respective content views. To prepare (...) the ground for my defense, I argue for an understanding of the state view in terms of concept exercise rather than concept possession and provide an overview of versions of conceptualism and nonconceptualism of different strengths. I then argue that conceptualists and nonconceptualists tacitly accept a so-called ‘state-to-content’ principle, show that existing defenses of this principle fail, and provide a new defense of it. It draws on the sources of the nonconceptualism debate, viz. the need to do justice both to the phenomenology of experience and to its epistemological role and to account for the existence of perceptual content and thought content. I argue that epistemological considerations together with considerations from the subject’s perspective support the claim that conceptual thought has conceptual and propositional content, whereas nonconceptual experience has nonconceptual and non-propositional content. (shrink)

This paper deals with the question whether, and to what extent, perceptions can provide a justification for our empirical beliefs. In particular, it addresses the issue of whether they need to be conceptualized by a subject in order to play a justificatory role. It is argued that the conditions under which a subject can have perceptual representational contents and those under which those representational contents can play a justificatory role differ. The upshot is that perception can provide justification only for (...) the beliefs of those creatures who have a conceptual apparatus and are therefore in a position passively to exercise it in perception, even though also creatures devoid of concepts can and often do have perceptual representations. (shrink)

Conceptualist accounts of the representational content of perceptual experiences have it that a subject _S_ can experience no object, property, relation, etc., unless _S_ "i# possesses and "ii# exercises concepts for such object, property, or relation. Perceptual experiences, on such a view, represent the world in a way that is conceptual.

Arguments for attributing non-conceptual content to experience have predominantly been motivated by aspects of the visual perception of empirical properties. In this article, I pursue a different strategy, arguing that a specific class of affective-evaluative experiences have non-conceptual content. The examples drawn on are affective-evaluative experiences of first exposure, in which the subject has a felt valenced intentional attitude towards evaluative properties of the object of their experience, but lacks any powers of conceptual discrimination regarding those evaluative properties. I also (...) show that by accepting this thesis we can explain relevant features of evaluative understanding. (shrink)