7 ideas
9987 | An aggregate in which order does not matter I call a 'set' [Bolzano] |
13655 | The Löwenheim-Skolem theorems show that whether all sets are constructible is indeterminate [Putnam, by Shapiro] |
9915 | V = L just says all sets are constructible [Putnam] |
9913 | The Löwenheim-Skolem Theorem is close to an antinomy in philosophy of language [Putnam] |
10856 | A truly infinite quantity does not need to be a variable [Bolzano] |
9914 | It is unfashionable, but most mathematical intuitions come from nature [Putnam] |
5495 | Instances of pain are physical tokens, but the nature of pain is more abstract [Putnam, by Lycan] |