15 ideas
| 9208 | Philosophers with a new concept are like children with a new toy [Fine,K] |
| 19404 | Necessities rest on contradiction, and contingencies on sufficient reason [Leibniz] |
| 19426 | 'Nominal' definitions just list distinguishing characteristics [Leibniz] |
| 9210 | Possible objects are abstract; actual concrete objects are possible; so abstract/concrete are compatible [Fine,K] |
| 9211 | A non-standard realism, with no privileged standpoint, might challenge its absoluteness or coherence [Fine,K] |
| 9202 | Objects, as well as sentences, can have logical form [Fine,K] |
| 9206 | We must distinguish between the identity or essence of an object, and its necessary features [Fine,K] |
| 9205 | The three basic types of necessity are metaphysical, natural and normative [Fine,K] |
| 9209 | Metaphysical necessity may be 'whatever the circumstance', or 'regardless of circumstances' [Fine,K] |
| 9200 | Empiricists suspect modal notions: either it happens or it doesn't; it is just regularities. [Fine,K] |
| 19424 | Knowledge needs clarity, distinctness, and adequacy, and it should be intuitive [Leibniz] |
| 19427 | True ideas represent what is possible; false ideas represent contradictions [Leibniz] |
| 9207 | If sentence content is all worlds where it is true, all necessary truths have the same content! [Fine,K] |
| 19425 | In the schools the Four Causes are just lumped together in a very obscure way [Leibniz] |
| 19403 | Each of the infinite possible worlds has its own laws, and the individuals contain those laws [Leibniz] |