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] |
8824 | No one has defended translational phenomenalism since Ayer in 1940 [Ayer, by Kim] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
15251 | The attribution of necessity to causation is either primitive animism, or confusion with logical necessity [Ayer] |