Combining Texts

Ideas for 'fragments/reports', 'Laws of Nature' and 'Philosophy of Science'

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4 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

15891

Traditional quantifiers combine ordinary language generality and ontology assumptions [Harré]

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

15878

Some quantifiers, such as 'any', rule out any notion of order within their range [Harré]