Combining Texts

All the ideas for '', 'Ethics: Inventing Right and Wrong' and '64: Gryllus - on Rationality in Animals'

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8 ideas

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
11211 If a sound conclusion comes from two errors that cancel out, the path of the argument must matter [Rumfitt]
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
11210 Standardly 'and' and 'but' are held to have the same sense by having the same truth table [Rumfitt]
11212 The sense of a connective comes from primitively obvious rules of inference [Rumfitt]
19. Language / F. Communication / 3. Denial
11214 We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt]
22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / f. Ethical non-cognitivism
4761 The 'error theory' of morals says there is no moral knowledge, because there are no moral facts [Mackie, by Engel]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / j. Ethics by convention
1477 Being manly and brave is the result of convention, not of human nature [Plutarch]
22. Metaethics / C. The Good / 3. Pleasure / e. Role of pleasure
1478 Animals don't value pleasure, as they cease sexual intercourse after impregnation [Plutarch]
25. Social Practice / F. Life Issues / 5. Sexual Morality
1479 Animals have not been led into homosexuality, because they value pleasure very little [Plutarch]