Joshua Anderson
Virginia State University
In the literature on assertion, there is a common assumption that having the knowledge that p is a sufficient condition for having the epistemic right to assert that p – call this the Knowledge is Sufficient for Assertion Principle, or KSA. Jennifer Lackey has challenged KSA based on several counterexamples that all, roughly, involve isolated secondhand knowledge. In this article, I argue that Lackey’s counterexamples fail to be convincing because her intuition that the agent in her counterexamples both has knowledge and do not have the epistemic right to assert is wrong. The article will progress as follows: In section 1, I present Lackey’s argument. In section 2, I suggest some more general reasons for doubting that the agent in her counterexamples actually has knowledge. I then show that from a virtue theoretic and Edward Craig’s practical explication of knowledge perspectives the agent in Lackey’s counterexamples does not know. Since the agent in Lackey’s counterexamples does not have knowledge, she has failed to convincingly prove that KSA is false. In section 3, I conclude by suggesting that, at most, what Lackey’s counterexamples demonstrate is a problem with a simplistic evidentialist and/or process reliabilist epistemology.
Keywords Assertion  Jennifer Lackey  secondhand knowledge  virtue epistemology
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DOI 10.31820/ejap.16.1.2
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References found in this work BETA

What is Justified Belief?Alvin Goldman - 1979 - In George Pappas (ed.), Justification and Knowledge. Boston: D. Reidel. pp. 1-25.
Knowledge and Action.John Hawthorne & Jason Stanley - 2008 - Journal of Philosophy 105 (10):571-590.
Knowledge and Lotteries.John Hawthorne - 2005 - Philosophical Quarterly 55 (219):353-356.

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