Combining Philosophers

Ideas for Rescher,N/Oppenheim,P, Peter van Inwagen and Alfred Tarski

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3 ideas

4. Formal Logic / B. Propositional Logic PL / 3. Truth Tables

19195

Truth tables give prior conditions for logic, but are outside the system, and not definitions [Tarski]

4. Formal Logic / F. Set Theory ST / 8. Critique of Set Theory

8972	What in the real world could ground the distinction between the sets {A,{A,B}} and {B,{A,B}}? [Inwagen]

4. Formal Logic / G. Formal Mereology / 1. Mereology

10662

Mereology is 'nihilistic' (just atoms) or 'universal' (no restrictions on what is 'whole') [Inwagen, by Varzi]