Combining Texts

All the ideas for 'Exigency to Exist in Essences', 'Whitehead and the Rise of Modern Logic' and 'Quaestiones de anima'

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6 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]

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]

7. Existence / A. Nature of Existence / 5. Reason for Existence

19400

Possibles demand existence, so as many of them as possible must actually exist [Leibniz]

19401

God's sufficient reason for choosing reality is in the fitness or perfection of possibilities [Leibniz]

9. Objects / C. Structure of Objects / 2. Hylomorphism / d. Form as unifier

16766

One thing needs a single thing to unite it; if there were two forms, something must unite them [Aquinas]

10. Modality / E. Possible worlds / 1. Possible Worlds / a. Possible worlds

19402

The actual universe is the richest composite of what is possible [Leibniz]