Combining Texts

Ideas for 'fragments/reports', 'A Subject with No Object' and 'Truth and Truthmakers'

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3 ideas

4. Formal Logic / F. Set Theory ST / 1. Set Theory

18396

The set theory brackets { } assert that the member is a unit [Armstrong]

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

18393

For 'there is a class with no members' we don't need the null set as truthmaker [Armstrong]

4. Formal Logic / F. Set Theory ST / 5. Conceptions of Set / d. Naïve logical sets

9933	The paradoxes are only a problem for Frege; Cantor didn't assume every condition determines a set [Burgess/Rosen]