Combining Philosophers

Ideas for Engelbretsen,G/Sayward,C, Alexander and A.George / D.J.Velleman

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2 ideas

5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle

10111

Asserting Excluded Middle is a hallmark of realism about the natural world [George/Velleman]

5. Theory of Logic / D. Assumptions for Logic / 4. Identity in Logic

13851

Unlike most other signs, = cannot be eliminated [Engelbretsen/Sayward]