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] |
| 8508 | A 'trope' is an abstract particular, the occurrence of an essence [Williams,DC] |
| 8509 | A world is completely constituted by its tropes and their connections [Williams,DC] |
| 8510 | 'Socrates is wise' means a concurrence sum contains a member of a similarity set [Williams,DC] |
| 15377 | Definite descriptions pick out different objects in different possible worlds [Fitting] |
| 2602 | What experience could prove 'If a=c and b=c then a=b'? [Descartes] |
| 2601 | Qualia must be innate, because physical motions do not contain them [Descartes] |
| 2600 | The mind's innate ideas are part of its capacity for thought [Descartes] |