Combining Texts

All the ideas for 'The Union of Body and Soul', 'reports' and 'Symbolic Reasoning'

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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]

10. Modality / A. Necessity / 8. Transcendental Necessity

3016	Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius]

26. Natural Theory / C. Causation / 9. General Causation / d. Causal necessity

2594	A true cause must involve a necessary connection between cause and effect [Malebranche]