Combining Texts

All the ideas for 'Locke on Essences and Kinds', 'Quantum: Einstein and Bohr' and 'Meaning and Necessity'

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6 ideas

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]

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Nominal essence are the observable properties of things [Eagle]

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

14. Science / D. Explanation / 2. Types of Explanation / k. Explanations by essence

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Bohr explained the periodic table and chemical properties of elements, using the quantum atom [Kumar]

19. Language / C. Assigning Meanings / 8. Possible Worlds Semantics

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The intension of a sentence is the set of all possible worlds in which it is true [Carnap, by Kaplan]

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

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