Combining Philosophers

Ideas for Melvin Fitting, Beth Lord and Paul O'Grady

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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 / A. Overview of Logic / 8. Logic of Mathematics

11026

Classical logic is deliberately extensional, in order to model mathematics [Fitting]

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 / F. Referring in Logic / 3. Property (λ-) Abstraction

11028

λ-abstraction disambiguates the scope of modal operators [Fitting]