7 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] |
14961 | Clearly a pipe can survive being taken apart [Cartwright,R] |
14962 | Bodies don't becomes scattered by losing small or minor parts [Cartwright,R] |
14470 | Explanatory exclusion: there cannot be two separate complete explanations of a single event [Kim] |