4 ideas
9987 | An aggregate in which order does not matter I call a 'set' [Bolzano] |
10856 | A truly infinite quantity does not need to be a variable [Bolzano] |
3214 | The models we use in reasoning may be more like perceptions than like language [Johnson-Laird] |
19399 | Prime matter is nothing when it is at rest [Leibniz] |