12 ideas
| 3269 | If your life is to be meaningful as part of some large thing, the large thing must be meaningful [Nagel] |
| 11211 | If a sound conclusion comes from two errors that cancel out, the path of the argument must matter [Rumfitt] |
| 11210 | Standardly 'and' and 'but' are held to have the same sense by having the same truth table [Rumfitt] |
| 11212 | The sense of a connective comes from primitively obvious rules of inference [Rumfitt] |
| 3626 | Knowing the attributes is enough to reveal a substance [Descartes] |
| 3630 | Our thinking about external things doesn't disprove the existence of innate ideas [Descartes] |
| 3270 | Justifications come to an end when we want them to [Nagel] |
| 3631 | A blind man may still contain the idea of colour [Descartes] |
| 11214 | We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt] |
| 3268 | If a small brief life is absurd, then so is a long and large one [Nagel] |
| 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] |