Combining Texts

All the ideas for 'Set Theory and related topics (2nd ed)', 'Introduction to 'Properties'' and 'Sociobiology'

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

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6 ideas

2. Reason / B. Laws of Thought / 6. Ockham's Razor

4037	Ockham's Razor is the principle that we need reasons to believe in entities [Mellor/Oliver]

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]

8. Modes of Existence / B. Properties / 6. Categorical Properties

4027	Properties are respects in which particular objects may be alike or differ [Mellor/Oliver]

8. Modes of Existence / B. Properties / 12. Denial of Properties

4029	Nominalists ask why we should postulate properties at all [Mellor/Oliver]

18. Thought / E. Abstraction / 5. Abstracta by Negation

4039	Abstractions lack causes, effects and spatio-temporal locations [Mellor/Oliver]

22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / d. Biological ethics

22187

Genetic behaviours that have enhanced human success include aggression, rape and xenophobia [Wilson,EO, by Okasha]