Combining Philosophers
Ideas for H.Putnam/P.Oppenheim, George Boolos and A.George / D.J.Velleman
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2 ideas
5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle
10111
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Asserting Excluded Middle is a hallmark of realism about the natural world [George/Velleman]
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5. Theory of Logic / D. Assumptions for Logic / 4. Identity in Logic
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Identity is clearly a logical concept, and greatly enhances predicate calculus [Boolos]
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