6 ideas
21563 | The 'no classes' theory says the propositions just refer to the members [Russell] |
17813 | Löwenheim-Skolem says any theory with a true interpretation has a model in the natural numbers [White,NP] |
21565 | Richard's puzzle uses the notion of 'definition' - but that cannot be defined [Russell] |
21564 | Vicious Circle: what involves ALL must not be one of those ALL [Russell] |
17812 | Finite cardinalities don't need numbers as objects; numerical quantifiers will do [White,NP] |
1556 | By nature people are close to one another, but culture drives them apart [Hippias] |