Combining Texts

All the ideas for 'A Problem about Substitutional Quantification?st1=Saul A. Kripke', 'Letters to Thomas Burnett' and 'Whitehead and the Rise of Modern Logic'

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5 ideas

5. Theory of Logic / A. Overview of Logic / 7. Second-Order Logic

13639

Quine says higher-order items are intensional, and lack a clearly defined identity relation [Quine, by Shapiro]

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

10792

The substitutional quantifier is not in competition with the standard interpretation [Kripke, by Marcus (Barcan)]

6. Mathematics / C. Sources of Mathematics / 6. Logicism / b. Type theory

21557

Russell confused use and mention, and reduced classes to properties, not to language [Quine, by Lackey]

9. Objects / B. Unity of Objects / 2. Substance / a. Substance

13197

The notion of substance is one of the keys to true philosophy [Leibniz]

26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / c. Essence and laws

13198

Gravity is within matter because of its structure, and it can be explained. [Leibniz]