Combining Texts

All the ideas for 'Reals by Abstraction', 'On the Basis of Morality' and 'Lecture on Applicability of Mathematics'

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5 ideas

6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / g. Real numbers
The real numbers may be introduced by abstraction as ratios of quantities [Hale, by Hale/Wright]
6. Mathematics / C. Sources of Mathematics / 4. Mathematical Empiricism / b. Indispensability of mathematics
It is spooky the way mathematics anticipates physics [Weinberg]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / b. Rational ethics
Reason can be vicious, and great crimes have to be rational [Schopenhauer]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / e. Human nature
Man's three basic ethical incentives are egoism, malice and compassion [Schopenhauer]
25. Social Practice / F. Life Issues / 6. Animal Rights
Philosophy treats animals as exploitable things, ignoring the significance of their lives [Schopenhauer]