Combining Texts

Ideas for 'Structures and Structuralism in Phil of Maths', 'Intro to 'Creating the Kingdom of Ends'' and 'Putnam's Paradox'

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2 ideas

5. Theory of Logic / G. Quantification / 5. Second-Order Quantification

10175

Three types of variable in second-order logic, for objects, functions, and predicates/sets [Reck/Price]

5. Theory of Logic / J. Model Theory in Logic / 2. Isomorphisms

14212

A consistent theory just needs one model; isomorphic versions will do too, and large domains provide those [Lewis]