Combining Texts

Ideas for 'On the Question of Absolute Undecidability', 'Letters to Antoine Arnauld' and 'The Evolution of Logic'

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2 ideas

5. Theory of Logic / K. Features of Logics / 5. Incompleteness

17894

We have no argument to show a statement is absolutely undecidable [Koellner]

5. Theory of Logic / K. Features of Logics / 6. Compactness

13496

First-order logic is 'compact': consequences of a set are consequences of a finite subset [Hart,WD]