Combining Texts

All the ideas for 'The Sign of Four', 'Sociobiology' and 'Reference and Generality (3rd ed)'

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7 ideas

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]

14. Science / C. Induction / 1. Induction

22200

If you eliminate the impossible, the truth will remain, even if it is weird [Conan Doyle]

22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / d. Biological ethics

22187

Genetic behaviours that have enhanced human success include aggression, rape and xenophobia [Wilson,EO, by Okasha]