15 ideas
10163 | Propositional modal logic has been proved to be complete [Kripke, by Feferman/Feferman] |
10760 | With possible worlds, S4 and S5 are sound and complete, but S1-S3 are not even sound [Kripke, by Rossberg] |
16189 | The variable domain approach to quantified modal logic invalidates the Barcan Formula [Kripke, by Simchen] |
15132 | The Barcan formulas fail in models with varying domains [Kripke, by Williamson] |
23664 | Powers are quite distinct and simple, and so cannot be defined [Reid] |
23669 | Thinkers say that matter has intrinsic powers, but is also passive and acted upon [Reid] |
23666 | It is obvious that there could not be a power without a subject which possesses it [Reid] |
1556 | By nature people are close to one another, but culture drives them apart [Hippias] |
23665 | Consciousness is the power of mind to know itself, and minds are grounded in powers [Reid] |
23668 | Our own nature attributes free determinations to our own will [Reid] |
20051 | Reid said that agent causation is a unique type of causation [Reid, by Stout,R] |
8383 | Day and night are constantly conjoined, but they don't cause one another [Reid, by Crane] |
23667 | Regular events don't imply a cause, without an innate conviction of universal causation [Reid] |
23670 | Scientists don't know the cause of magnetism, and only discover its regulations [Reid] |
23671 | Laws are rules for effects, but these need a cause; rules of navigation don't navigate [Reid] |