Combining Philosophers

Ideas for Oswald Veblen, Hugh MacColl and Stephen Read

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2 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]

4. Formal Logic / F. Set Theory ST / 5. Conceptions of Set / c. Logical sets

11020

Realisms like the full Comprehension Principle, that all good concepts determine sets [Read]