Ideas from 'Defeasibility Theory' by Thomas Grundmann [2011], by Theme Structure

[found in 'Routledge Companion to Epistemology' (ed/tr Bernecker,S/Pritchard,D) [Routledge 2014,978-0-415-72269-8]].

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11. Knowledge Aims / B. Certain Knowledge / 4. Fallibilism
Indefeasibility does not imply infallibility
13. Knowledge Criteria / A. Justification Problems / 1. Justification / c. Defeasibility
Defeasibility theory needs to exclude defeaters which are true but misleading
Can a defeater itself be defeated?
Simple reliabilism can't cope with defeaters of reliably produced beliefs
You can 'rebut' previous beliefs, 'undercut' the power of evidence, or 'reason-defeat' the truth
Knowledge requires that there are no facts which would defeat its justification
13. Knowledge Criteria / B. Internal Justification / 4. Foundationalism / b. Basic beliefs
'Moderate' foundationalism has basic justification which is defeasible