9 ideas
| 10845 | To be true a sentence must express a proposition, and not be ambiguous or vague or just expressive [Lewis] |
| 10847 | Truthmakers are about existential grounding, not about truth [Lewis] |
| 10846 | Truthmaker is correspondence, but without the requirement to be one-to-one [Lewis] |
| 23633 | Many truths seem obvious, and point to universal agreement - which is what we find [Reid] |
| 23630 | Only philosophers treat ideas as objects [Reid] |
| 23629 | The ambiguity of words impedes the advancement of knowledge [Reid] |
| 1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
| 23632 | Similar effects come from similar causes, and causes are only what are sufficient for the effects [Reid] |
| 5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |