Combining Texts

All the ideas for 'Aristotle and Descartes on Matter', 'Aesthetics: problems in the philosophy of criticism' and 'Principles of Theoretical Logic'

expand these ideas     |    start again     |     specify just one area for these texts

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3 ideas

4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC

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The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki]

21. Aesthetics / C. Artistic Issues / 6. Value of Art

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Art leads to mental health, and mental clarity [Beardsley,M, by Carroll,N]

26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / b. Prime matter

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Prime matter is nothing when it is at rest [Leibniz]