Combining Philosophers

All the ideas for H.Putnam/P.Oppenheim, Proclus and Peter Unger

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8 ideas

7. Existence / D. Theories of Reality / 10. Vagueness / d. Vagueness as linguistic

9052	Vague predicates lack application; there are no borderline cases; vague F is not F [Unger, by Keefe/Smith]

9. Objects / A. Existence of Objects / 5. Simples

16070

There are no objects with proper parts; there are only mereological simples [Unger, by Wasserman]

13. Knowledge Criteria / C. External Justification / 6. Contextual Justification / b. Invariantism

8724	The meaning of 'know' does not change from courtroom to living room [Unger]

13. Knowledge Criteria / D. Scepticism / 1. Scepticism

8722	No one knows anything, and no one is ever justified or reasonable [Unger]

13. Knowledge Criteria / D. Scepticism / 4. Demon Scepticism

8723	An evil scientist may give you a momentary life, with totally false memories [Unger]

14. Science / D. Explanation / 2. Types of Explanation / g. Causal explanations

13165

Geometrical proofs do not show causes, as when we prove a triangle contains two right angles [Proclus]

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]

18. Thought / E. Abstraction / 1. Abstract Thought

9569	The origin of geometry started in sensation, then moved to calculation, and then to reason [Proclus]