Combining Texts

All the ideas for 'Mahaprajnaparamitashastra', 'The Meditations (To Himself)' and 'A Completeness Theorem in Modal Logic'

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11 ideas

1. Philosophy / A. Wisdom / 2. Wise People

3067	A philosopher should have principles ready for understanding, like a surgeon with instruments [Aurelius]

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]

7. Existence / B. Change in Existence / 1. Nature of Change

3072	Everything is changing, including yourself and the whole universe [Aurelius]

22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / k. Ethics from nature

3066	Nothing is evil which is according to nature [Aurelius]

22. Metaethics / C. The Good / 3. Pleasure / c. Value of pleasure

3071	Justice has no virtue opposed to it, but pleasure has temperance opposed to it [Aurelius]

23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / b. Living naturally

3069	The art of life is more like the wrestler's than the dancer's [Aurelius]

23. Ethics / C. Virtue Theory / 3. Virtues / a. Virtues

7903	The six perfections are giving, morality, patience, vigour, meditation, and wisdom [Nagarjuna]

24. Political Theory / A. Basis of a State / 1. A People / a. Human distinctiveness

3065	Humans are naturally made for co-operation [Aurelius]