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Coliva, Annalisa. Extended Rationality: A Hinge Epistemology
2015, Basingstoke: Palgrave Macmillan.
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Added by: Jie Gao
Publisher's Note: 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.

Comment: In this interesting book, Annalisa Coliva develops an account of the structure of justification inspired by Wittgenstein's epistemology (Ch.1-3), argues a constitutivism about epistemic rationality (Ch.4) and reveals its significance for many contemporary problems (Ch.5). Ch.1 involves a overview of three dominant views of perceptual warrants: liberalism, conservativism and moderatism, so it could be a useful reading material for teachings on epistemic justification and perceptual warrant. Ch.4 can be used as a further reading for topics on epistemic rationality, Wittgenstein's epistemology and external world skepticism.

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Lackey, Jennfer. Testimonial knowledge and transmission
1999, Philosophical Quarterly 50 (197): 471-490.
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Added by: Jie Gao
Abstract: We often talk about knowledge being transmitted via testimony. This suggests a picture of testimony with striking similarities to memory. For instance, it is often assumed that neither is a generative source of knowledge: while the former transmits knowledge from one speaker to another, the latter preserves beliefs from one time to another. These considerations give rise to a stronger and a weaker thesis regarding the transmission of testimonial knowledge. The stronger thesis is that each speaker in a chain of testimonial transmission must know that p in order to pass this knowledge to a hearer. The weaker thesis is that at least the first speaker must know that p in order for any hearer in the chain to come to know that p via testimony. I argue that both theses are false, and hence testimony, unlike memory, can be a generative source of knowledge.

Comment: This is a very good introductory paper on testimonial knowledge and debates between reductivists and non-reductivists. Note that it requires preliminary knowledge on JTB theory.

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