Jesper Kallestrup

Kripke's argument against the identity theory in the philosophy of mind runs as follows. Suppose some psychophysical identity statement S is true. Then S would seem to be contingent at least in the sense that S seems possibly false. And given that seeming contingency entails genuine contingency when it comes to such statements S is contingent. But S is necessary if true. So S is false. This entry considers responses to each of the three premises. It turns out that each response does not fully withstand scrutiny, and so Kripke's conclusion is hard to resist. Section 1 lays out Kripke's argument, and Sections 2 to 4 then discuss responses to each of the three premises respectively.

Machery et al. claim that analytic philosophers of language are committed to a method of cases according to which theories of reference are assessed by consulting semantic intuitions about actual and possible cases. Since empirical evidence suggests that such intuitions vary both within and across cultures, these experimental semanticists conclude that the traditional attempt at pursuing such theories is misguided. Against the backdrop of Kripke’s anti-descriptivist arguments, this paper offers a novel response to the challenge posed by Machery et al., arguing that they either misplace or exaggerate the role played by. The lesson is that while semantic intuitions carry evidential weight in evaluating certain subjunctive conditionals reflecting counterfactual possibilities, they neither play an epistemic role in determining the actual reference of proper names, nor in evaluating certain indicative conditionals reflecting so-called counteractual possibilities. Moreover, once an asymmetry is acknowledged in Machery et al’s vignette between the narrator and the subject’s suppositions about the actual world, a corresponding ambiguity can account for the alleged culturally determined variation in semantic intuitions

The philosophical case for extended cognition is often made with reference to ‘extended-memory cases’ (e.g. Clark & Chalmers 1998); though, unfortunately, proponents of the hypothesis of extended cognition (HEC) as well as their adversaries have failed to appreciate the kinds of epistemological problems extended-memory cases pose for mainstream thinking in the epistemology of memory. It is time to give these problems a closer look. Our plan is as follows: in §1, we argue that an epistemological theory remains compatible with HEC only if its epistemic assessments do not violate what we call ‘the epistemic parity principle’. In §2, we show how the constraint of respecting the epistemic parity principle stands in what appears to be a prima facie intractable tension with mainstream thinking about cases of propositional memory. We then outline and evaluate in §3 several lines of response.

Process reliabilists hold that in order for a belief to be justified, it must result from a reliable cognitive process. They also hold that a belief can be basically justified: justified in this manner without having any justification to believe that belief is reliably produced. Fumerton (1995), Vogel (2000), and Cohen (2002) have objected that such basic justification leads to implausible easy justification by means of either epistemic closure principles or so-called track record arguments. I argue that once we carefully distinguish closure principles from transmission principles, and epistemic consequences from epistemic preconditions, neither version of this objection succeeds.