Combining Texts

Ideas for 'The Evolution of Logic', 'The Blue and Brown Notebooks' and 'Russell's Mathematical Logic'

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2 ideas

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]

5. Theory of Logic / K. Features of Logics / 8. Enumerability

10038

A logical system needs a syntactical survey of all possible expressions [Gödel]