Combining Texts

All the ideas for 'Ethical Studies', 'A Completeness Theorem in Modal Logic' and 'Oxford University Statutes'

expand these ideas     |    start again     |     specify just one area for these texts


6 ideas

1. Philosophy / B. History of Ideas / 4. Early European Thought
There is a five shilling fine for each point of divergence from the thinking of Aristotle [Oxford Univ 1350]
4. Formal Logic / D. Modal Logic ML / 1. Modal Logic
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
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
The variable domain approach to quantified modal logic invalidates the Barcan Formula [Kripke, by Simchen]
The Barcan formulas fail in models with varying domains [Kripke, by Williamson]
22. Metaethics / C. The Good / 2. Happiness / d. Routes to happiness
Happiness is not satisfaction of desires, but fulfilment of values [Bradley, by Scruton]