6 ideas
16974 | The nature of each logical concept is given by a collection of inference rules [Correia] |
8698 | Modal structuralism says mathematics studies possible structures, which may or may not be actualised [Hellman, by Friend] |
9557 | Statements of pure mathematics are elliptical for a sort of modal conditional [Hellman, by Chihara] |
10263 | Modal structuralism can only judge possibility by 'possible' models [Shapiro on Hellman] |
16973 | Explain logical necessity by logical consequence, or the other way around? [Correia] |
19216 | Propositions (such as 'that dog is barking') only exist if their items exist [Williamson] |