4 ideas
10190 | From the axiomatic point of view, mathematics is a storehouse of abstract structures [Bourbaki] |
9548 | A mathematical object exists if there is no contradiction in its definition [Waterfield] |
15201 | That Queen Anne is dead is a 'general fact', not a fact about Queen Anne [Prior,AN] |
22899 | 'Thank goodness that's over' is not like 'thank goodness that happened on Friday' [Prior,AN] |