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'A Structural Account of Mathematics', 'Against the Ethicists (one book)' and 'Ordinary Objects'
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3 ideas
5. Theory of Logic / B. Logical Consequence / 6. Entailment
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Analytical entailments arise from combinations of meanings and inference rules [Thomasson]
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5. Theory of Logic / E. Structures of Logic / 6. Relations in Logic
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The mathematics of relations is entirely covered by ordered pairs [Chihara]
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5. Theory of Logic / K. Features of Logics / 2. Consistency
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Sentences are consistent if they can all be true; for Frege it is that no contradiction can be deduced [Chihara]
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