12 ideas
| 21560 | Any linguistic expression may lack meaning when taken out of context [Russell] |
| 21561 | 'The number one is bald' or 'the number one is fond of cream cheese' are meaningless [Russell] |
| 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] |
| 18130 | Axiom of Reducibility: there is always a function of the lowest possible order in a given level [Russell, by Bostock] |
| 11026 | Classical logic is deliberately extensional, in order to model mathematics [Fitting] |
| 11028 | λ-abstraction disambiguates the scope of modal operators [Fitting] |
| 21562 | There is no complexity without relations, so no propositions, and no truth [Russell] |
| 15377 | Definite descriptions pick out different objects in different possible worlds [Fitting] |
| 22232 | Authenticity is taking responsibility for a situation, with all its risks and emotions [Sartre] |