Combining Texts

All the ideas for 'fragments/reports', 'Animal Rights talk' and 'Investigations into Logical Deduction'

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5 ideas

5. Theory of Logic / H. Proof Systems / 4. Natural Deduction

13832

Natural deduction shows the heart of reasoning (and sequent calculus is just a tool) [Gentzen, by Hacking]

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]

19. Language / F. Communication / 1. Rhetoric

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

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

25. Social Practice / C. Rights / 1. Basis of Rights

5064	Rights are moral significance, or liberty, or right not to be restrained, or entitlement [Mawson]