Combining Philosophers

Ideas for H.Putnam/P.Oppenheim, Theodore Sider and J Baggini / PS Fosl

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5 ideas

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

4640	If identity is based on 'true of X' instead of 'property of X' we get the Masked Man fallacy ('I know X but not Y') [Baggini /Fosl, by PG]

9. Objects / F. Identity among Objects / 4. Type Identity

4647	'I have the same car as you' is fine; 'I have the same fiancée as you' is not so good [Baggini /Fosl]

9. Objects / F. Identity among Objects / 7. Indiscernible Objects

13702

The identity of indiscernibles is necessarily true, if being a member of some set counts as a property [Sider]

4639	Leibniz's Law is about the properties of objects; the Identity of Indiscernibles is about perception of objects [Baggini /Fosl]

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

14754

If you say Leibniz's Law doesn't apply to 'timebound' properties, you are no longer discussing identity [Sider]