Combining Texts

All the ideas for 'Identity in Substances and True Propositions', 'Symbolic Reasoning' and 'Second Commentary on 'Isagoge''

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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]

7. Existence / C. Structure of Existence / 6. Fundamentals / c. Monads

19405

Substances are in harmony, because they each express the one reality in themselves [Leibniz]

8. Modes of Existence / D. Universals / 5. Universals as Concepts

15035

If universals are not separate, we can isolate them by abstraction [Boethius, by Panaccio]