9 ideas
| 11211 | If a sound conclusion comes from two errors that cancel out, the path of the argument must matter [Rumfitt] |
| 5637 | Nowadays logic is seen as the science of extensions, not intensions [Scruton] |
| 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] |
| 15793 | We can take 'ways things might have been' as irreducible elements in our ontology [Stalnaker, by Lycan] |
| 5636 | Cartesian 'ideas' confuse concepts and propositions [Scruton] |
| 11214 | We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt] |
| 5660 | Allegiance is prior to the recognition of individual rights [Scruton] |
| 5653 | A right is a power which is enforced in the name of justice [Scruton] |