11 ideas
| 2626 | A philosopher is outside any community of ideas [Wittgenstein] |
| 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] |
| 7557 | To solve Zeno's paradox, reject the axiom that the whole has more terms than the parts [Russell] |
| 6569 | 'This sentence is false' sends us in a looping search for its proposition [Wittgenstein, by Fogelin] |
| 10059 | In mathematic we are ignorant of both subject-matter and truth [Russell] |
| 7556 | A collection is infinite if you can remove some terms without diminishing its number [Russell] |
| 7554 | Self-evidence is often a mere will-o'-the-wisp [Russell] |
| 3790 | Causes of beliefs are irrelevant to their contents [Wittgenstein] |
| 11214 | We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt] |