Combining Texts

All the ideas for 'Locke on Essences and Kinds', 'Logical Foundations of Probability' and 'Proof of an External World'

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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]

11. Knowledge Aims / B. Certain Knowledge / 2. Common Sense Certainty

6349	I can prove a hand exists, by holding one up, pointing to it, and saying 'here is one hand' [Moore,GE]

14. Science / D. Explanation / 1. Explanation / b. Aims of explanation

13048

Good explications are exact, fruitful, simple and similar to the explicandum [Carnap, by Salmon]

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]