10 ideas
| 12172 | Objects of amusement do not have to be real [Scruton] |
| 12169 | Since only men laugh, it seems to be an attribute of reason [Scruton] |
| 12170 | Amusement rests on superiority, or relief, or incongruity [Scruton] |
| 12173 | The central object of amusement is the human [Scruton] |
| 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] |
| 13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
| 12174 | Only rational beings are attentive without motive or concern [Scruton] |
| 11214 | We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt] |