Combining Philosophers

All the ideas for Crawford L. Elder, Bob Hale/ Aviv Hoffmann and Seymour Lipschutz

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

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7 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes

8920	Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]

8. Modes of Existence / B. Properties / 1. Nature of Properties

13795

Properties only have identity in the context of their contraries [Elder]

9. Objects / B. Unity of Objects / 3. Unity Problems / c. Statue and clay

13798

Maybe we should give up the statue [Elder]

9. Objects / D. Essence of Objects / 6. Essence as Unifier

13797

The loss of an essential property means the end of an existence [Elder]

9. Objects / D. Essence of Objects / 9. Essence and Properties

13794

Essential properties by nature occur in clusters or packages [Elder]

13796

Essential properties are bound together, and would be lost together [Elder]

10. Modality / A. Necessity / 1. Types of Modality

14528

Maybe modal thought is unavoidable, as a priori recognition of necessary truth-preservation in reasoning [Hale/Hoffmann,A]