Ideas from 'A Completeness Theorem in Modal Logic' by Saul A. Kripke [1959], by Theme Structure
green numbers give full details |
back to texts
|
expand these ideas
4. Formal Logic / D. Modal Logic ML / 1. Modal Logic
10163
|
Propositional modal logic has been proved to be complete [Feferman/Feferman]
|
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / a. Systems of modal logic
10760
|
With possible worlds, S4 and S5 are sound and complete, but S1-S3 are not even sound [Rossberg]
|
4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula
16189
|
The variable domain approach to quantified modal logic invalidates the Barcan Formula [Simchen]
|
15132
|
The Barcan formulas fail in models with varying domains [Williamson]
|