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    Feferman argued that Kreisel's autonomy condition is epis... — Carmelics
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    Challenges→The least upper bound of the ordinal indices appearing in the finitist autonomous progression is the ordinal epsilon_0

    Feferman argued that Kreisel's autonomy condition is epistemically circular: recognizing a progression as finitistically legitimate already presupposes the ordinal comprehension it purports to generate.

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    Key Terms

    Autonomy condition(as Kreisel's specific proposal in mathematical reasoning)
    A rule or requirement that something should be able to stand on its own without needing outside help or assumptions to justify itself.
    Epistemically circular(describing a logical problem with the argument)
    A situation where you're trying to prove something, but your proof assumes the very thing you're trying to prove—like trying to prove a book is true by quoting the book itself.
    Feferman(as a historical figure in logic and philosophy of mathematics)
    Solomon Feferman (1928–2016), a logician and philosopher who studied the foundations of mathematics and how different formal systems relate to each other.
    Finitistically legitimate(as the standard being applied to mathematical methods)
    Acceptable or valid according to finitism, a strict approach to math that only accepts reasoning about things we can actually construct or compute in a finite number of steps.

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    Kreisel(as a historical figure in logic and philosophy of mathematics)
    Georg Kreisel (1923–2015), a mathematical logician who studied how mathematical reasoning works and whether we can be certain about mathematical truths.
    Ordinal comprehension(as the mathematical concept that's supposedly being justified)
    The ability to understand and work with ordinals, which are special numbers mathematicians use to measure the size and structure of infinite collections in an organized way.
    Presupposes(as describing what Plantinga's argument takes for granted)
    Assumes something to be true without proving it—like how an argument might presuppose that logic works, without first arguing that logic is valid.

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    2 topics

    Proof of definition segments1 linkedTruth & Knowledge1 linked

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    The least upper bound of the ordinal indices appearing in the finitist autonomou...

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