9 ideas
| 9086 | The idea of abstract objects is not ontological; it comes from the epistemological idea of abstraction [Plantinga] |
| 9087 | Theists may see abstract objects as really divine thoughts [Plantinga] |
| 9085 | If propositions are concrete they don't have to exist, and so they can't be necessary truths [Plantinga] |
| 9084 | Propositions can't just be in brains, because 'there are no human beings' might be true [Plantinga] |
| 13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
| 21730 | A 'field' is a property with a magnitude, distributed across all of space and time [Baggott] |
| 21731 | Fields can be 'scalar', or 'vector', or 'tensor', or 'spinor' [Baggott] |
| 21732 | The current standard model requires 61 particles [Baggott] |
| 20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |