Combining Texts

All the ideas for 'works', 'Modes of Extension: comment on Fine' and 'Reference and Generality (3rd ed)'

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

---

8 ideas

5. Theory of Logic / G. Quantification / 2. Domain of Quantification

17743

De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki]

6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / d. Counting via concepts

12154

Are 'word token' and 'word type' different sorts of countable objects, or two ways of counting? [Geach, by Perry]

9. Objects / A. Existence of Objects / 6. Nihilism about Objects

8969	We should abandon absolute identity, confining it to within some category [Geach, by Hawthorne]

9. Objects / F. Identity among Objects / 3. Relative Identity

16075

Denial of absolute identity has drastic implications for logic, semantics and set theory [Wasserman on Geach]

12152

Identity is relative. One must not say things are 'the same', but 'the same A as' [Geach]

9. Objects / F. Identity among Objects / 8. Leibniz's Law

16073

Leibniz's Law is incomplete, since it includes a non-relativized identity predicate [Geach, by Wasserman]

18. Thought / E. Abstraction / 7. Abstracta by Equivalence

18883

Any equivalence relation among similar things allows the creation of an abstractum [Simons]

18884

Abstraction is usually seen as producing universals and numbers, but it can do more [Simons]