13 ideas
| 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] |
| 8447 | In 'Etna is higher than Vesuvius' the whole of Etna, including all the lava, can't be the reference [Frege] |
| 8448 | Any object can have many different names, each with a distinct sense [Frege] |
| 6402 | In 1927, Russell analysed force and matter in terms of events [Russell, by Grayling] |
| 14732 | A perceived physical object is events grouped around a centre [Russell] |
| 14733 | An object produces the same percepts with or without a substance, so that is irrelevant to science [Russell] |
| 6418 | Russell rejected phenomenalism because it couldn't account for causal relations [Russell, by Grayling] |
| 8446 | We understand new propositions by constructing their sense from the words [Frege] |
| 8449 | Senses can't be subjective, because propositions would be private, and disagreement impossible [Frege] |
| 11214 | We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt] |
| 21706 | At first matter is basic and known by sense-data; later Russell says matter is constructed [Russell, by Linsky,B] |