Combining Texts

Ideas for 'fragments/reports', 'fragments/reports' and 'Truthmakers and Converse Barcan Formula'

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5 ideas

5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens

8078	Modus ponens is one of five inference rules identified by the Stoics [Chrysippus, by Devlin]

5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle

6023	Every proposition is either true or false [Chrysippus, by Cicero]

5. Theory of Logic / G. Quantification / 1. Quantification

18492

Not all quantification is either objectual or substitutional [Williamson]

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

15136

Substitutional quantification is metaphysical neutral, and equivalent to a disjunction of instances [Williamson]

5. Theory of Logic / G. Quantification / 7. Unorthodox Quantification

15138

Not all quantification is objectual or substitutional [Williamson]