Combining Philosophers

Ideas for Dicaearchus, Ramon and Bob Hale

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2 ideas

5. Theory of Logic / A. Overview of Logic / 2. History of Logic

19369

Lull's combinatorial art would articulate all the basic concepts, then show how they combine [Lull, by Arthur,R]

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]