Combining Texts

All the ideas for 'reports', 'A Completeness Theorem in Modal Logic' and 'Implications'

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7 ideas

1. Philosophy / H. Continental Philosophy / 6. Deconstruction

8210	Deconstructing philosophy gives the history of concepts, and the repressions behind them [Derrida]

8211	The movement of 'différance' is the root of all the oppositional concepts in our language [Derrida]

4. Formal Logic / D. Modal Logic ML / 1. Modal Logic

10163

Propositional modal logic has been proved to be complete [Kripke, by 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 [Kripke, by Rossberg]

4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula

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]

10. Modality / A. Necessity / 8. Transcendental Necessity

3016	Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius]