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All the ideas for 'Essays on Intellectual Powers: Conception', 'Philosophy' and 'Principles of Theoretical Logic'

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7 ideas

4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC

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The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki]

9. Objects / D. Essence of Objects / 4. Essence as Definition

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Objects have an essential constitution, producing its qualities, which we are too ignorant to define [Reid]

10. Modality / D. Knowledge of Modality / 4. Conceivable as Possible / b. Conceivable but impossible

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Impossibilites are easily conceived in mathematics and geometry [Reid, by Molnar]

11. Knowledge Aims / A. Knowledge / 7. Knowledge First

23888

Knowledge is beyond question, as an unavoidable component of thinking [Weil]

19. Language / B. Reference / 1. Reference theories

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Reference is by name, or a term-plus-circumstance, or ostensively, or by description [Reid]

19. Language / B. Reference / 3. Direct Reference / c. Social reference

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A word's meaning is the thing conceived, as fixed by linguistic experts [Reid]

21. Aesthetics / B. Nature of Art / 1. Defining Art

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Art (like philosophy) establishes a relation between world and self, and between oneself and others [Weil]