9 ideas
| 19043 | Bivalence applies not just to sentences, but that general terms are true or false of each object [Quine] |
| 8463 | Maths can be reduced to logic and set theory [Quine] |
| 19042 | Terms learned by ostension tend to be vague, because that must be quick and unrefined [Quine] |
| 8461 | The category of objects incorporates the old distinction of substances and their modes [Quine] |
| 9295 | Not only substances have attributes; events, actions, states and qualities can have them [Teichmann] |
| 9293 | Body-spirit interaction ought to result in losses and increases of energy in the material world [Teichmann] |
| 8462 | A hallucination can, like an ague, be identified with its host; the ontology is physical, the idiom mental [Quine] |
| 9294 | No individuating marks distinguish between Souls [Teichmann] |
| 9292 | The Soul has no particular capacity (in the way thinking belongs to the mind) [Teichmann] |