Combining Texts

All the ideas for 'Locke on Essences and Kinds', 'Ontological Ground of Alethic Modality' and 'Aristotle and Descartes on Matter'

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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]

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]

10. Modality / E. Possible worlds / 1. Possible Worlds / e. Against possible worlds

9220	Lewis must specify that all possibilities are in his worlds, making the whole thing circular [Shalkowski, by Sider]

26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / b. Prime matter

19399

Prime matter is nothing when it is at rest [Leibniz]

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]