Single Idea 10814

[catalogued under 4. Formal Logic / F. Set Theory ST / 3. Types of Set / c. Unit (Singleton) Sets]

Full Idea

Are all singletons exact intrinsic duplicates?

Gist of Idea

Are all singletons exact intrinsic duplicates?

Source

David Lewis (Mathematics is Megethology [1993], p.13)

Book Reference

-: 'Philosophia Mathematica' [-], p.13

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