Combining Texts

Ideas for 'Unconscious Cerebral Initiative', 'First-Order Logic' and 'A Structural Account of Mathematics'

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2 ideas

5. Theory of Logic / K. Features of Logics / 2. Consistency

9552	Sentences are consistent if they can all be true; for Frege it is that no contradiction can be deduced [Chihara]

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

10287

If a first-order theory entails a sentence, there is a finite subset of the theory which entails it [Hodges,W]