Combining Texts

All the ideas for 'Symbolic Reasoning', 'Isagoge ('Introduction')' and 'Semantics, Conceptual Role'

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

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3 ideas

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

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

8. Modes of Existence / D. Universals / 1. Universals

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Are genera and species real or conceptual? bodies or incorporeal? in sensibles or separate from them? [Porphyry]

19. Language / A. Nature of Meaning / 7. Meaning Holism / c. Meaning by Role

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The meaning of a representation is its role in thought, perception or decisions [Block]