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Ideas for 'Principles of Philosophy', 'Definitiones cogitationesque metaphysicae' and 'works'

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2 ideas

8. Modes of Existence / D. Universals / 1. Universals
Five universals: genus, species, difference, property, accident [Descartes]
8. Modes of Existence / D. Universals / 2. Need for Universals
Universals are acceptable if they are needed to make an accepted theory true [Quine, by Jacquette]