19 ideas
21704 | 'Impredictative' definitions fix a class in terms of the greater class to which it belongs [Linsky,B] |
21705 | Reducibility says any impredicative function has an appropriate predicative replacement [Linsky,B] |
21727 | Definite descriptions theory eliminates the King of France, but not the Queen of England [Linsky,B] |
21719 | Extensionalism means what is true of a function is true of coextensive functions [Linsky,B] |
21723 | The task of logicism was to define by logic the concepts 'number', 'successor' and '0' [Linsky,B] |
21721 | Higher types are needed to distinguished intensional phenomena which are coextensive [Linsky,B] |
21703 | Types are 'ramified' when there are further differences between the type of quantifier and its range [Linsky,B] |
21714 | The ramified theory subdivides each type, according to the range of the variables [Linsky,B] |
21713 | Did logicism fail, when Russell added three nonlogical axioms, to save mathematics? [Linsky,B] |
21715 | For those who abandon logicism, standard set theory is a rival option [Linsky,B] |
21729 | Construct properties as sets of objects, or say an object must be in the set to have the property [Linsky,B] |
5960 | When the soul is intelligent and harmonious, it is part of god and derives from god [Plutarch] |
3654 | The pineal gland links soul to body, and unites the two symmetrical sides of the body [Descartes, by PG] |
4015 | For Descartes passions are God-given preservers of the mind-body union [Descartes, by Taylor,C] |
4313 | Are there a few primary passions (say, joy, sadness and desire)? [Descartes, by Cottingham] |
23989 | There are six primitive passions: wonder, love, hatred, desire, joy and sadness [Descartes, by Goldie] |
20037 | Merely willing to walk leads to our walking [Descartes] |
16763 | We don't die because the soul departs; the soul departs because the organs cease functioning [Descartes] |
4016 | Descartes makes strength of will the central virtue [Descartes, by Taylor,C] |