Combining Philosophers

Ideas for Rescher,N/Oppenheim,P, Alan Musgrave and Alvin Plantinga

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2 ideas

5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth

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Logical truths may contain non-logical notions, as in 'all men are men' [Musgrave]

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A statement is logically true if it comes out true in all interpretations in all (non-empty) domains [Musgrave]