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    AGM revision theory, extended by Gardenförs and Makinson'... — Carmelics
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    Challenges→Epistemic logic can express the interaction between knowledge and belief in ways that AGM and non-monotonic logic cannot

    AGM revision theory, extended by Gardenförs and Makinson's epistemic entrenchment framework, distinguishes between firmly held beliefs and defeasible ones, approximating knowledge/belief stratification.

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    Key Terms

    AGM revision theory(as used in epistemology)
    A formal system for understanding how we should logically change our beliefs when we encounter new information that contradicts what we already thought we knew.
    Defeasible beliefs(as used in epistemology)
    Beliefs that can be overturned or proven wrong with sufficient evidence or reasoning—the opposite of beliefs you'd never give up.
    Epistemic entrenchment(as used in epistemology)
    A ranking system for your beliefs based on how central they are to your thinking—some beliefs are foundational to everything else you believe, while others are easier to give up.
    Firmly held beliefs(as used in belief revision)
    Beliefs that are so fundamental to how you understand the world that you'd only abandon them if almost everything else you believe fell apart first.

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    Gardenförs(as a key figure in belief revision theory)
    Peter Gardenförs is a Swedish philosopher who made major contributions to understanding how beliefs change and how knowledge is organized in our minds.
    Knowledge/belief stratification(as used in epistemology)
    The idea that our beliefs aren't all equally important or reliable; they form layers or levels based on how central they are to what we know.
    Makinson(as a key figure in belief revision theory)
    David Makinson is a logician and philosopher who worked with others to develop formal rules for how we should rationally update our beliefs.
    knowledge(Distinguished from mere true belief, which may be the product of indoctrination and need not exercise deliberative capacities.)
    Justified true belief — true belief that has been arrived at through the exercise of deliberative capacities, including comparison of and deliberation among alternatives.

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    Truth & Knowledge1 linkedConsciousness & Mind1 linked

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