Combining Texts

All the ideas for 'fragments/reports', 'Logic [1897]' and 'The Logical Basis of Metaphysics'

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5 ideas

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

18801

Classical negation is circular, if it relies on knowing negation-conditions from truth-conditions [Dummett]

7. Existence / A. Nature of Existence / 3. Being / d. Non-being

18933

Not-Being obviously doesn't exist, and the five modes of Being are all impossible [Gorgias, by Diog. Laertius]

13. Knowledge Criteria / C. External Justification / 2. Causal Justification

11052

Psychological logic can't distinguish justification from causes of a belief [Frege]

19. Language / F. Communication / 1. Rhetoric

9866	Gorgias says rhetoric is the best of arts, because it enslaves without using force [Gorgias, by Plato]

5864	Destroy seriousness with laughter, and laughter with seriousness [Gorgias]