Combining Texts

All the ideas for 'fragments/reports', 'Symbolic Reasoning' and 'Classes and Attributes'

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3 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / b. Empty (Null) Set

21548

The null class is the class with all the non-existents as its members [MacColl, by Lackey]

8. Modes of Existence / B. Properties / 11. Properties as Sets

9783	While no two classes coincide in membership, there are distinct but coextensive attributes [Cartwright,R]

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

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