display all the ideas for this combination of philosophers
3 ideas
9611 | 'Abstract' nowadays means outside space and time, not concrete, not physical [Brown,JR] |
9569 | The origin of geometry started in sensation, then moved to calculation, and then to reason [Proclus] |
9609 | The older sense of 'abstract' is where 'redness' or 'group' is abstracted from particulars [Brown,JR] |