5 ideas
| 8463 | Maths can be reduced to logic and set theory [Quine] |
| 13127 | Categories can't overlap; they are either disjoint, or inclusive [Sommers, by Westerhoff] |
| 8461 | The category of objects incorporates the old distinction of substances and their modes [Quine] |
| 16705 | Whiteness isn't created in an alteration, because it is just this-being-white [Oresme] |
| 8462 | A hallucination can, like an ague, be identified with its host; the ontology is physical, the idiom mental [Quine] |