4 ideas
9987 | An aggregate in which order does not matter I call a 'set' [Bolzano] |
10245 | One geometry cannot be more true than another [Poincaré] |
10856 | A truly infinite quantity does not need to be a variable [Bolzano] |
22601 | Laissez-faire individualism doesn't work, especially in troublesome times [Keynes] |