Combining Philosophers

All the ideas for H.Putnam/P.Oppenheim, Sidney Morgenbesser and Hugh MacColl

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3 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / b. Empty (Null) Set

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The null class is the class with all the non-existents as its members [MacColl, by Lackey]

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

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

25. Social Practice / D. Justice / 1. Basis of justice

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If everyone is treated with equal injustice, at least that is fair [Morgenbesser]