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Ideas for 'works', 'fragments/reports' and 'Grundlagen der Arithmetik (Foundations)'

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4 ideas

9. Objects / F. Identity among Objects / 1. Concept of Identity

16022

The idea of a criterion of identity was introduced by Frege [Frege, by Noonan]

11100

Frege's algorithm of identity is the law of putting equals for equals [Frege, by Quine]

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

12153

Geach denies Frege's view, that 'being the same F' splits into being the same and being F [Perry on Frege]

9. Objects / F. Identity among Objects / 6. Identity between Objects

9853	Identity between objects is not a consequence of identity, but part of what 'identity' means [Frege, by Dummett]