Combining Texts

All the ideas for 'Locke on Essences and Kinds', 'Set Theory and related topics (2nd ed)' and 'That Politics may be reduced to a Science'

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8 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]

9. Objects / D. Essence of Objects / 13. Nominal Essence

15642

If kinds depend only on what can be observed, many underlying essences might produce the same kind [Eagle]

15645

Nominal essence are the observable properties of things [Eagle]

15643

Nominal essence mistakenly gives equal weight to all underlying properties that produce appearances [Eagle]

23. Ethics / C. Virtue Theory / 4. External Goods / d. Friendship

21093

Friendship without community spirit misses out on the main part of virtue [Hume]

24. Political Theory / B. Nature of a State / 3. Constitutions

21091

It would be absurd if even a free constitution did not impose restraints, for the public good [Hume]

24. Political Theory / C. Ruling a State / 2. Leaders / d. Elites

21092

Nobility either share in the power of the whole, or they compose the power of the whole [Hume]

26. Natural Theory / B. Natural Kinds / 4. Source of Kinds

15641

Kinds are fixed by the essential properties of things - the properties that make it that kind of thing [Eagle]