| 13387 | Our conceptual scheme becomes more powerful when we posit abstract objects [Quine] |
| 16980 | We need a logical use of 'object' as predicate-worthy, and an 'ontological' use [Strawson,P] |
| 18950 | Physics is full of non-physical entities, such as space-vectors [Putnam] |
| 10555 | If we can intuitively apprehend abstract objects, this makes them observable and causally active [Dummett] |
| 18067 | Abstract objects were a bad way of explaining the structure in mathematics [Kitcher] |