Combining Philosophers

Ideas for William James, Paul O'Grady and Epicurus

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5 ideas

5. Theory of Logic / A. Overview of Logic / 6. Classical Logic

4705	Logical relativism appears if we allow more than one legitimate logical system [O'Grady]

5. Theory of Logic / D. Assumptions for Logic / 1. Bivalence

4700	A third value for truth might be "indeterminate", or a point on a scale between 'true' and 'false' [O'Grady]

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

21668

Epicurus rejected excluded middle, because accepting it for events is fatalistic [Epicurus, by Cicero]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

4704	Wittgenstein reduced Russell's five primitive logical symbols to a mere one [O'Grady]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / e. or

21676

Epicureans say disjunctions can be true whiile the disjuncts are not true [Epicurus, by Cicero]