12 ideas
| 19463 | Induction assumes some uniformity in nature, or that in some respects the future is like the past [Ayer] |
| 3626 | Knowing the attributes is enough to reveal a substance [Descartes] |
| 19461 | Knowing I exist reveals nothing at all about my nature [Ayer] |
| 19459 | To say 'I am not thinking' must be false, but it might have been true, so it isn't self-contradictory [Ayer] |
| 19460 | 'I know I exist' has no counterevidence, so it may be meaningless [Ayer] |
| 3630 | Our thinking about external things doesn't disprove the existence of innate ideas [Descartes] |
| 19464 | We only discard a hypothesis after one failure if it appears likely to keep on failing [Ayer] |
| 19462 | Induction passes from particular facts to other particulars, or to general laws, non-deductively [Ayer] |
| 3631 | A blind man may still contain the idea of colour [Descartes] |
| 3640 | Possible existence is a perfection in the idea of a triangle [Descartes] |
| 3639 | Necessary existence is a property which is uniquely part of God's essence [Descartes] |
| 7607 | Nagarjuna and others pronounced the world of experience to be an illusion [Nagarjuna, by Armstrong,K] |