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Ideas for 'The Poetics', 'Is Hume's Principle analytic?' and 'Replies on 'Limits of Abstraction''

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4 ideas

18. Thought / E. Abstraction / 7. Abstracta by Equivalence
Abstraction-theoretic imperialists think Fregean abstracts can represent every mathematical object [Fine,K]
We can combine ZF sets with abstracts as urelements [Fine,K]
We can create objects from conditions, rather than from concepts [Fine,K]
An 'abstraction principle' says two things are identical if they are 'equivalent' in some respect [Boolos]