display all the ideas for this combination of texts
3 ideas
19087 | The meaning or purport of a symbol is all the rational conduct it would lead to [Peirce] |
9583 | Psychological logicians are concerned with sense of words, but mathematicians study the reference [Frege] |
9584 | Identity baffles psychologists, since A and B must be presented differently to identify them [Frege] |