13 ideas
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] |
11028 | λ-abstraction disambiguates the scope of modal operators [Fitting] |
12295 | 3-D says things are stretched in space but not in time, and entire at a time but not at a location [Fine,K] |
12298 | Genuine motion, rather than variation of position, requires the 'entire presence' of the object [Fine,K] |
12296 | 4-D says things are stretched in space and in time, and not entire at a time or at a location [Fine,K] |
18882 | You can ask when the wedding was, but not (usually) when the bride was [Fine,K, by Simons] |
12297 | Three-dimensionalist can accept temporal parts, as things enduring only for an instant [Fine,K] |
15377 | Definite descriptions pick out different objects in different possible worlds [Fitting] |
22200 | If you eliminate the impossible, the truth will remain, even if it is weird [Conan Doyle] |