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Ideas for 'On the Question of Absolute Undecidability', 'What are Sets and What are they For?' and 'Logical Consequence'

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5. Theory of Logic / K. Features of Logics / 3. Soundness
Soundness theorems are uninformative, because they rely on soundness in their proofs [McGee]
5. Theory of Logic / K. Features of Logics / 5. Incompleteness
We have no argument to show a statement is absolutely undecidable [Koellner]