11 ideas
21697 | The Struthionic Fallacy is that of burying one's head in the sand [Quine] |
15375 | If terms change their designations in different states, they are functions from states to objects [Fitting] |
15376 | Intensional logic adds a second type of quantification, over intensional objects, or individual concepts [Fitting] |
15378 | Awareness logic adds the restriction of an awareness function to epistemic logic [Fitting] |
15379 | Justication logics make explicit the reasons for mathematical truth in proofs [Fitting] |
11026 | Classical logic is deliberately extensional, in order to model mathematics [Fitting] |
21698 | All relations, apart from ancestrals, can be reduced to simpler logic [Quine] |
11028 | λ-abstraction disambiguates the scope of modal operators [Fitting] |
21696 | Nominalism rejects both attributes and classes (where extensionalism accepts the classes) [Quine] |
18435 | Resemblance Nominalists say that resemblance explains properties (not the other way round) [Rodriquez-Pereyra] |
15377 | Definite descriptions pick out different objects in different possible worlds [Fitting] |