Combining Philosophers

All the ideas for H.Putnam/P.Oppenheim, Oliver,A/Smiley,T and Ned Markosian

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24 ideas

1. Philosophy / G. Scientific Philosophy / 3. Scientism
14001 People who use science to make philosophical points don't realise how philosophical science is [Markosian]
3. Truth / B. Truthmakers / 9. Making Past Truths
13991 Presentism has the problem that if Socrates ceases to exist, so do propositions about him [Markosian]
4. Formal Logic / F. Set Theory ST / 3. Types of Set / b. Empty (Null) Set
14239 The empty set is usually derived from Separation, but it also seems to need Infinity [Oliver/Smiley]
14240 The empty set is something, not nothing! [Oliver/Smiley]
14241 We don't need the empty set to express non-existence, as there are other ways to do that [Oliver/Smiley]
14242 Maybe we can treat the empty set symbol as just meaning an empty term [Oliver/Smiley]
4. Formal Logic / F. Set Theory ST / 3. Types of Set / c. Unit (Singleton) Sets
14243 The unit set may be needed to express intersections that leave a single member [Oliver/Smiley]
5. Theory of Logic / G. Quantification / 6. Plural Quantification
14234 If you only refer to objects one at a time, you need sets in order to refer to a plurality [Oliver/Smiley]
14237 We can use plural language to refer to the set theory domain, to avoid calling it a 'set' [Oliver/Smiley]
5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth
14245 Logical truths are true no matter what exists - but predicate calculus insists that something exists [Oliver/Smiley]
6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / g. Applying mathematics
14246 If mathematics purely concerned mathematical objects, there would be no applied mathematics [Oliver/Smiley]
6. Mathematics / B. Foundations for Mathematics / 6. Mathematics as Set Theory / a. Mathematics is set theory
14247 Sets might either represent the numbers, or be the numbers, or replace the numbers [Oliver/Smiley]
10. Modality / E. Possible worlds / 2. Nature of Possible Worlds / a. Nature of possible worlds
14002 Possible worlds must be abstract, because two qualitatively identical worlds are just one world [Markosian]
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]
19. Language / A. Nature of Meaning / 4. Meaning as Truth-Conditions
14000 'Grabby' truth conditions first select their object, unlike 'searchy' truth conditions [Markosian]
27. Natural Reality / D. Time / 1. Nature of Time / h. Presentism
13990 Presentism is the view that only present objects exist [Markosian]
13992 Presentism says if objects don't exist now, we can't have attitudes to them or relations with them [Markosian]
13994 Presentism seems to entail that we cannot talk about other times [Markosian]
13995 Serious Presentism says things must exist to have relations and properties; Unrestricted version denies this [Markosian]
13996 Maybe Presentists can refer to the haecceity of a thing, after the thing itself disappears [Markosian]
13997 Maybe Presentists can paraphrase singular propositions about the past [Markosian]
13993 Special Relativity denies the absolute present which Presentism needs [Markosian]
27. Natural Reality / D. Time / 2. Passage of Time / k. Temporal truths
13998 Objects in the past, like Socrates, are more like imaginary objects than like remote spatial objects [Markosian]
13999 People are mistaken when they think 'Socrates was a philosopher' says something [Markosian]