Combining Texts

All the ideas for 'Set Theory and related topics (2nd ed)', 'Identity and Reference' and '64: Gryllus - on Rationality in Animals'

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

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5 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]

18. Thought / B. Mechanics of Thought / 5. Mental Files

16362

An identity statement aims at getting the hearer to merge two mental files [Lockwood]

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]