Online research in philosophy

This paper shows how to reconcile epistemic invariantism with the knowledge account of assertion. My basic proposal is that we can comfortably combine invariantism with the knowledge account of assertion by endorsing contextualism about speech acts. My demonstration takes place against the backdrop of recent contextualist attempts to usurp the knowledge account of assertion, most notably Keith DeRose’s influential argument that the knowledge account of assertion spells doom for invariantism and enables contextualism’s ascendancy. The paper’s plan: Section 1 explains contextualism and invariantism. Section 2 recounts a common influential objection to contextualism, to wit, that its proponents confuse warranted assertability with truth. Section 3 reviews DeRose’s response to this objection, wherein he argues that contextualism’s opponent, in leveling this objection, is hoist with his own petard. Sections 4 – 6 develop resources for crafting a version of invariantism that escapes DeRose’s argument. Section 7 introduces us to this freshly equipped version of invariantism, which can be wedded to the knowledge account of assertion. Sections 8 – 11 entertain and respond to objections. Section 12 concludes our discussion by suggesting how our new invariantist could respond to the radical skeptic, in a way that rivals the anti-skeptical contextualist’s response.

I argue that DeRose's attributor contextualism cannot straightforwardly preserve the widespread view that, when a subject believes q solely on the basis of competent deduction from p, knowledge of q requires knowledge of p. I present a novel challenge to the compatibility of this widespread view with DeRose's contextualism, then argue that the tension can be resolved in only one of two ways: if DeRose rejects the widespread view or if DeRose accepts the existence of a range of contextualism-specific Gettier-style cases.

This paper uses the knowledge account of assertion (KAA) in defense of epistemological contextualism. Part 1 explores the main problem afflicting contextualism, what I call the "Generality Objection." Part 2 presents and defends both KAA and a powerful new positive argument that it provides for contextualism. Part 3 uses KAA to answer the Generality Objection, and also casts other shadows over the prospects for anti-contextualism.

Contribution to a symposium on Keith DeRose's The Case for Contextualism, Volume 1.

Contextualism is supposed to explain why the following argument for skepticism seems plausible: (1) I don’t know that I am not a bodiless brain-in-a-vat (BIV); (2) If I know I have hands, then I know I am not a bodiless BIV; (3) Therefore, I do not know I have hands. Keith DeRose claims that (1) and (2) are “initially plausible.” I claim that (1) is initially plausible only because of an implicit argument that stands behind it; it is not intuitively plausible. The argument DeRose offers is based on the requirement of sensitivity, that is, on the idea that if you know something then you would not believe it if it were false. I criticize the sensitivity requirement thereby undercutting its support for (1) and the skeptical data that contextualism is meant to explain. While skepticism is not a plausible ground for contextualism, I argue that certain pragmatic considerations are. It’s plausible to think that to know something more evidence is required when more is at stake. The best way to handle skepticism is to criticize the arguments for it. We should not adopt contextualism as a means of accommodating skepticism even if there are other pragmatic reasons for being a contextualist about knowledge.

Attributer contextualists maintain that the verb 'knows' is context-sensitive in the sense that the truth conditions of a sentence of the form "S knows that p" can be dependent upon the ascriber's context. One natural objection against attributer contextualism is that it confuses the impropriety of certain assertions which ascribe knowledge to agents with the falsity of those assertions. In an influential article, Keith DeRose has defended attributer contextualism against this charge by proposing constraints on what he calls "warranted assertibility manoeuvres" of this sort. This paper argues that, contra DeRose, the warranted assertibility manoeuvre directed at attributer contextualism is able to meet the constraints that DeRose lays down.

Abstract: Contextualism in epistemology has been proposed both as a way to avoid skepticism and as an explanation for the variability found in our use of "knows." When we turn to contextualism to perform these two functions, we should ensure that the version we endorse is well suited for these tasks. I compare two versions of epistemic contextualism: attributor contextualism (from Keith DeRose) and methodological contextualism (from Michael Williams). I argue that methodological contextualism is superior both in its response to skepticism and in its mechanism for changing contexts. However, methodological contextualism still faces two challenges: explaining why we are solidly committed to some contexts, and explaining why knowledge within a context is valuable. I propose virtue contextualism as a useful extension of methodological contextualism, focusing on the way that our virtues depend on our social roles. My proposed virtue contextualism retains the benefits of methodological contextualism while explaining both our commitment to particular contexts and the value of knowledge held within those contexts.

In The Case for Contextualism Keith DeRose offers a sustained state-of-the-art exposition and defense of the contextualist position, presenting and advancing ...

(No abstract is available for this citation).