7 ideas
21548 | The null class is the class with all the non-existents as its members [MacColl, by Lackey] |
17644 | Metaphysical realism is committed to there being one ultimate true theory [Putnam] |
17648 | It is an illusion to think there could be one good scientific theory of reality [Putnam] |
17643 | Shape is essential relative to 'statue', but not essential relative to 'clay' [Putnam] |
17642 | The old view that sense data are independent of mind is quite dotty [Putnam] |
9141 | Abstraction theories build mathematics out of second-order equivalence principles [Cook/Ebert] |
17645 | An alien might think oxygen was the main cause of a forest fire [Putnam] |