9 ideas
21548 | The null class is the class with all the non-existents as its members [MacColl, by Lackey] |
15567 | Some events involve no change; they must, because causal histories involve unchanges [Lewis] |
15561 | The events that suit semantics may not be the events that suit causation [Lewis] |
15565 | Events have inbuilt essences, as necessary conditions for their occurrence [Lewis] |
15566 | Events are classes, and so there is a mereology of their parts [Lewis] |
15564 | An event is a property of a unique space-time region [Lewis] |
15563 | Properties are very abundant (unlike universals), and are used for semantics and higher-order variables [Lewis] |
9807 | In pursuing truth, anything less certain than mathematics is a waste of time [Descartes] |
15562 | Causation is a general relation derived from instances of causal dependence [Lewis] |