display all the ideas for this combination of texts
2 ideas
| 7576 | The Identity of Indiscernibles is true of concepts with identical properties, but not of particulars [Kant, by Jolley] |
| Full Idea: Kant said that the principle of the Identity of Indiscernibles is true only at the level of concepts; two concepts having identical properties are the same concept; the principle is not true at the level of particulars given in sensory experience. | |
| From: report of Immanuel Kant (Critique of Pure Reason [1781]) by Nicholas Jolley - Leibniz Ch.8 | |
| A reaction: Good. I would think that should be the last word on that particular subject. ...Suppose, though, that two people had identical concepts with identical properties, but believed that the extensions (application to particulars) were different? |
| 14509 | If we ignore differences between water drops, we still distinguish them by their location [Kant] |
| Full Idea: In the case of two drops of water one can completely abstract from all inner difference (of quality and quantity), and it is enough that they be intuited in different places at the same time in order for them to be held to be numerically different. | |
| From: Immanuel Kant (Critique of Pure Reason [1781], B319/A263) | |
| A reaction: Adams points out that this is the same idea as Max Black's famous two spheres thought experiment. We assume that all the water drops are distinct from one another, even if we are unable to perceive the fact. Best explanation. |