Combining Philosophers

All the ideas for H.Putnam/P.Oppenheim, Hecato and W Kneale / M Kneale

expand these ideas     |    start again     |     specify just one area for these philosophers

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3 ideas

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / f. Axiom of Infinity V

10051

The axiom of infinity is not a truth of logic, and its adoption is an abandonment of logicism [Kneale,W and M]

14. Science / D. Explanation / 2. Types of Explanation / j. Explanations by reduction

20653

Six reduction levels: groups, lives, cells, molecules, atoms, particles [Putnam/Oppenheim, by Watson]

23. Ethics / C. Virtue Theory / 3. Virtues / a. Virtues

6004	The cardinal virtues are theoretical (based on knowledge), and others are 'non-theoretical' [Hecato, by Dorandi]