15 ideas
19695 | The devil was wise as an angel, and lost no knowledge when he rebelled [Whitcomb] |
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] |
13437 | A CAR and its major PART can become identical, yet seem to have different properties [Gallois] |
16233 | Gallois hoped to clarify identity through time, but seems to make talk of it impossible [Hawley on Gallois] |
16025 | If things change they become different - but then no one thing undergoes the change! [Gallois] |
16026 | 4D: time is space-like; a thing is its history; past and future are real; or things extend in time [Gallois] |
14755 | Gallois is committed to identity with respect to times, and denial of simple identity [Gallois, by Sider] |
16231 | Occasional Identity: two objects can be identical at one time, and different at others [Gallois, by Hawley] |
16027 | If two things are equal, each side involves a necessity, so the equality is necessary [Gallois] |
15377 | Definite descriptions pick out different objects in different possible worlds [Fitting] |