Combining Philosophers

Ideas for H.Putnam/P.Oppenheim, Berys Gaut and Peter Geach

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4 ideas

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]

9. Objects / F. Identity among Objects / 9. Sameness

11910

Being 'the same' is meaningless, unless we specify 'the same X' [Geach]