12 ideas
17884 | Mathematical set theory has many plausible stopping points, such as finitism, and predicativism [Koellner] |
17893 | 'Reflection principles' say the whole truth about sets can't be captured [Koellner] |
17894 | We have no argument to show a statement is absolutely undecidable [Koellner] |
17890 | There are at least eleven types of large cardinal, of increasing logical strength [Koellner] |
17887 | PA is consistent as far as we can accept, and we expand axioms to overcome limitations [Koellner] |
17891 | Arithmetical undecidability is always settled at the next stage up [Koellner] |
3291 | Emergent properties appear at high levels of complexity, but aren't explainable by the lower levels [Nagel] |
20440 | Art is a referential activity, hence indefinable, but it has a set of symptoms [Goodman] |
20439 | Artistic symbols are judged by the fruitfulness of their classifications [Goodman, by Giovannelli] |
20438 | A performance is only an instance of a work if there is not a single error [Goodman] |
20437 | A copy only becomes an 'instance' of an artwork if there is a system of notation [Goodman] |
3290 | Given the nature of heat and of water, it is literally impossible for water not to boil at the right heat [Nagel] |