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Ideas for 'On the Question of Absolute Undecidability', 'The Myth of Sisyphus' and 'Philosophical Logic: Intro to Advanced Topics'

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5. Theory of Logic / K. Features of Logics / 5. Incompleteness
We have no argument to show a statement is absolutely undecidable [Koellner]
Axioms are ω-incomplete if the instances are all derivable, but the universal quantification isn't [Engelbretsen/Sayward]