Combining Texts

All the ideas for 'Set Theory and related topics (2nd ed)', 'A Note on the entscheidungsproblem' and 'Rationality and Goodness'

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

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3 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes

8920	Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]

5. Theory of Logic / K. Features of Logics / 7. Decidability

18758

Validity is provable, but invalidity isn't, because the model is infinite [Church, by McGee]

23. Ethics / C. Virtue Theory / 1. Virtue Theory / d. Virtue theory critique

23692

Good and bad are a matter of actions, not of internal dispositions [Foot]