Online research in philosophy

Epistemic contextualism is the view that the truth-conditions for knowledge attributions can vary across contexts as a result of shifting epistemic standards. According to Keith DeRose, the “chief bugaboo of contextualism has been the concern that the contextualist is mistaking variability in the conditions of..

The best grounds for accepting contextualism concerning knowledge attributions are to be found in how knowledge-attributing (and knowledge-denying) sentences are used in ordinary, nonphilosophical talk: What ordinary speakers will count as “knowledge” in some non-philosophical contexts they will deny is such in others. Contextualists typically appeal to pairs of cases that forcefully display the variability in the epistemic standards that govern ordinary usage: A “low standards” case (henceforth, “LOW”) in which a speaker seems quite appropriately and truthfully to ascribe knowledge to a subject will be paired with a “high standards” case (“HIGH”) in which another speaker in a quite different and more demanding context seems with equal propriety and truth to say that the same subject (or a similarly positioned subject) does not know. The contextualist argument based on such cases is driven by the premises that the positive attribution of knowledge in LOW is true, and that the denial of knowledge in HIGH is true. And where the contextualist has constructed HIGH and LOW wisely, those premises are in turn powerfully supported by the two mutually reinforcing strands of evidence that both of the claims intuitively seem true, and that both claims are perfectly appropriate. The resulting argument for contextualism is very powerful indeed, but I am on the offensive making that case in another paper: “The Ordinary Language Basis for Contextualism and the New Invariantism.”.

This paper argues that Epistemic Contextualism, Knowledge Closure, and the Knowledge Account of Assertion are inconsistent. The argument is developed by considering an objection to Contextualism that is unsuccessful. Some Contextualist responses are canvassed and rejected. Finally, it is argued that an analogue of the inconsistency arises for those who accept that justification is closed under known entailment.

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.

I am currently examining the suggestion that assertion and practical reasoning are subject to specifically epistemic norms, and the consequences of this suggestion for the correct account of knowledge. One currently popular view is that knowledge is the epistemic norm of both assertion and practical reasoning (see DeRose, Hawthorne, Stanley and Williamson). If assertion and practical reasoning are governed by the knowledge norm, then one criterion for an account of knowledge is that it should respect the ties between knowledge, assertion and practical reasoning. In this way, the knowledge norm is at the heart of contemporary debate about the correct account of knowledge, e.g. the debate between contextualism and invariantism (see Hawthorne.

Abstract: In responding to the cases that motivate epistemic contextualism, invariantists sometimes use a warranted assertability maneuver (WAM), according to which we mistakenly judge an assertion to be true because we confuse conversational propriety with truth. I argue that no invariantist WAM against Stewart Cohen's Airport Case can succeed. The problem is that such a WAM is inconsistent with the known ways of accounting for the evidence that motivates the knowledge account of assertion.

Contextualists support their view by appeal to cases which show that whether an attribution of knowledge seems correct depends on attributor factors. Contextualists conclude that the truth-conditions of knowledge attributions depend on the attributor's context. Invariantists respond that these cases show only that the warranted assertability-conditions of knowledge attributions depend on the attributor's context. I examine DeRose's recent argument against the possibility of such an invariantist response, an argument which appeals to the knowledge account of assertion and the context-sensitivity of assertion. I argue that DeRose's new argument does not rule out either of the two forms of invariantism, classic and subject-sensitive invariantism. Further, I argue against DeRose that an invariantist can explain the context-sensitivity of assertion.

Keith DeRose has recently argued that the contextual variability of appropriate assertion, together with the knowledge account of assertion, yields a direct argument that ’knows’ is semantically contextsensitive. The argument fails because of an equivocation on the notion of warranted assertability. Once the equivocation is removed, it can be seen that the invariantist can retain the knowledge account of assertion and explain the contextual variability of appropriate assertion by appealing to Williamson’s suggestion that practical and conversational considerations can influence the extent to which adherence to the constitutive norm of assertion matters.

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.

In this paper, I take up an argument advanced by Keith DeRose (Philosophical Review, 111:167–203, 2002) that suggests that the knowledge account of assertion provides the basis of an argument in favor of contextualism. I discuss the knowledge account as the conjunction of two theses—a thesis claiming that knowledge is sufficient to license assertion KA and one claiming that knowledge is necessary to license assertion AK. Adducing evidence from Stalnaker’s account of assertion, from conversational practice, and from arguments often raised in favor of the knowledge account, I suggest that neither the AK nor the KA theses are plausible. That is, I argue that the knowledge account of assertion to which DeRose appeals is in fact not suitable as an account of assertion. Given that DeRose’s argument stands and falls with the knowledge account, I claim that the argument therefore fails.