15 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] |
| 21642 | If quantification is all substitutional, there is no ontology [Quine] |
| 1633 | Absolute ontological questions are meaningless, because the answers are circular definitions [Quine] |
| 18964 | Ontology is relative to both a background theory and a translation manual [Quine] |
| 18965 | We know what things are by distinguishing them, so identity is part of ontology [Quine] |
| 15377 | Definite descriptions pick out different objects in different possible worlds [Fitting] |
| 1634 | Two things are relative - the background theory, and translating the object theory into the background theory [Quine] |
| 20363 | Leaves are unequal, but we form the concept 'leaf' by discarding their individual differences [Nietzsche] |
| 8470 | Reference is inscrutable, because we cannot choose between theories of numbers [Quine, by Orenstein] |
| 18963 | Indeterminacy translating 'rabbit' depends on translating individuation terms [Quine] |