Combining Texts

Ideas for 'fragments/reports', 'The Possibility of Metaphysics' and 'The Trouble with Being Born'

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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 / E. Structures of Logic / 2. Logical Connectives / c. not

23066

Negation doesn't arise from reasoning, but from deep instincts [Cioran]

5. Theory of Logic / G. Quantification / 3. Objectual Quantification

8312	It is better if the existential quantifier refers to 'something', rather than a 'thing' which needs individuation [Lowe]