12 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] |
| 16664 | Everything that exists is either a substance or an accident [Albert of Saxony] |
| 16703 | God could make a successive thing so that previous parts cease to exist [Albert of Saxony] |
| 16699 | Successive entities just need parts to succeed one another, without their existence [Albert of Saxony] |
| 15377 | Definite descriptions pick out different objects in different possible worlds [Fitting] |
| 20653 | Six reduction levels: groups, lives, cells, molecules, atoms, particles [Putnam/Oppenheim, by Watson] |
| 16570 | Elements are found last in dismantling bodies, and first in generating them [Albert of Saxony] |