23 ideas
18806 | Frege thought traditional categories had psychological and linguistic impurities [Frege, by Rumfitt] |
4975 | A thought can be split in many ways, so that different parts appear as subject or predicate [Frege] |
8490 | First-level functions have objects as arguments; second-level functions take functions as arguments [Frege] |
8492 | Relations are functions with two arguments [Frege] |
9949 | There is the concept, the object falling under it, and the extension (a set, which is also an object) [Frege, by George/Velleman] |
8487 | Arithmetic is a development of logic, so arithmetical symbolism must expand into logical symbolism [Frege] |
18899 | Frege takes the existence of horses to be part of their concept [Frege, by Sommers] |
18995 | Frege mistakenly takes existence to be a property of concepts, instead of being about things [Frege, by Yablo] |
4028 | Frege allows either too few properties (as extensions) or too many (as predicates) [Mellor/Oliver on Frege] |
10317 | It is unclear whether Frege included qualities among his abstract objects [Frege, by Hale] |
8489 | The concept 'object' is too simple for analysis; unlike a function, it is an expression with no empty place [Frege] |
10535 | Frege's 'objects' are both the referents of proper names, and what predicates are true or false of [Frege, by Dummett] |
9947 | Concepts are the ontological counterparts of predicative expressions [Frege, by George/Velleman] |
10319 | An assertion about the concept 'horse' must indirectly speak of an object [Frege, by Hale] |
8488 | A concept is a function whose value is always a truth-value [Frege] |
9839 | Frege equated the concepts under which an object falls with its properties [Frege, by Dummett] |
9948 | Unlike objects, concepts are inherently incomplete [Frege, by George/Velleman] |
4973 | As I understand it, a concept is the meaning of a grammatical predicate [Frege] |
9167 | Frege felt that meanings must be public, so they are abstractions rather than mental entities [Frege, by Putnam] |
4972 | I may regard a thought about Phosphorus as true, and the same thought about Hesperus as false [Frege] |
4974 | For all the multiplicity of languages, mankind has a common stock of thoughts [Frege] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
8491 | The Ontological Argument fallaciously treats existence as a first-level concept [Frege] |