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'Necessary Existents', 'Frege philosophy of mathematics' and '(Nonsolipsistic) Conceptual Role Semantics'
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3 ideas
5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
12595
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We have a theory of logic (implication and inconsistency), but not of inference or reasoning [Harman]
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5. Theory of Logic / A. Overview of Logic / 6. Classical Logic
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In classical logic, logical truths are valid formulas; in higher-order logics they are purely logical [Dummett]
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5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / d. and
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I might accept P and Q as likely, but reject P-and-Q as unlikely [Harman]
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