![]() | On the Purity of the Art of Logic: The Shorter and the Longer Treatises Paul Vincent Spade is professor of philosophy and an associate member of the department of history and philosophy of science at Indiana University. |
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![]() | On the Purity of the Art of Logic: The Shorter and the Longer Treatises Paul Vincent Spade is professor of philosophy and an associate member of the department of history and philosophy of science at Indiana University. |