Combining Texts

All the ideas for 'fragments/reports', 'Review: Meinong 'Uber die Stellung...'' and 'Investigations into Logical Deduction'

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3 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]

9. Objects / A. Existence of Objects / 4. Impossible objects

21547

On Meinong's principles 'the existent round square' has to exist [Russell]

21. Aesthetics / C. Artistic Issues / 7. Art and Morality

468	Musical performance can reveal a range of virtues [Damon of Ath.]