Combining Philosophers

Ideas for Hermarchus, Keith Campbell and Paul O'Grady

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4 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 / 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 / 6. Relations in Logic

8525	Relations need terms, so they must be second-order entities based on first-order tropes [Campbell,K]