Combining Philosophers

Ideas for Paul Audi, Charles Sanders Peirce and Bob Hale

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2 ideas

5. Theory of Logic / A. Overview of Logic / 3. Value of Logic

14780

Only study logic if you think your own reasoning is deficient [Peirce]

5. Theory of Logic / A. Overview of Logic / 7. Second-Order Logic

19296

If second-order variables range over sets, those are just objects; properties and relations aren't sets [Hale]