Combining Philosophers

Ideas for Anaxarchus, Mark Colyvan and John Heil

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3 ideas

4. Formal Logic / E. Nonclassical Logics / 2. Intuitionist Logic

17926

Rejecting double negation elimination undermines reductio proofs [Colyvan]

17925

Showing a disproof is impossible is not a proof, so don't eliminate double negation [Colyvan]

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

7035	God does not create the world, and then add the classes [Heil]