display all the ideas for this combination of texts
4 ideas
5164 | A statement is meaningful if observation statements can be deduced from it [Ayer] |
5165 | Directly verifiable statements must entail at least one new observation statement [Ayer] |
5166 | The principle of verification is not an empirical hypothesis, but a definition [Ayer] |
9640 | A term can have not only a sense and a reference, but also a 'computational role' [Brown,JR] |