display all the ideas for this combination of philosophers
2 ideas
| 20779 | Demonstration derives what is less clear from what is clear [Stoic school, by Diog. Laertius] |
| Full Idea: Demonstration is an argument which by means of things more clearly grasped concludes to something that is less clearly grasped. | |
| From: report of Stoic school (fragments/reports [c.200 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 07.45 | |
| A reaction: In Aristotle demonstration seems to concern physical sciences, but this stoic account makes it sound like pure logic proof. This is why all logic tends to start from atomic sentences, because they are clearest. |
| 5629 | If a proposition implies any false consequences, then it is false [Kant] |
| Full Idea: If only a single false consequence can be derived from a proposition, then this proposition is false. | |
| From: Immanuel Kant (Critique of Pure Reason [1781], B819/A791) | |
| A reaction: Seems right. Of course, it might imply entirely true consequences, and still be false. This idea has to be one of the foundations (sic) of coherentism about truth and justification. |