4 ideas
17699 | Variables are auxiliary notions, and not part of the 'eternal' essence of logic [Schönfinkel] |
10990 | Conditionals are truth-functional, but unassertable in tricky cases? [Grice, by Read] |
19216 | Propositions (such as 'that dog is barking') only exist if their items exist [Williamson] |
10991 | Key conversational maxims are 'quality' (assert truth) and 'quantity' (leave nothing out) [Grice, by Read] |