Ideas from 'Fourfold Root of Princ of Sufficient Reason' by Arthur Schopenhauer [1813], by Theme Structure
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2. Reason / B. Laws of Thought / 2. Sufficient Reason
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21918
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Sufficient Reason can't be proved, because all proof presupposes it [Lewis,PB]
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7. Existence / E. Categories / 1. Categories
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21920
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No need for a priori categories, since sufficient reason shows the interrelations [Lewis,PB]
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10. Modality / A. Necessity / 3. Types of Necessity
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21362
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Necessity is physical, logical, mathematical or moral [Janaway]
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11. Knowledge Aims / C. Knowing Reality / 3. Idealism / a. Idealism
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21361
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For Schopenhauer, material things would not exist without the mind [Janaway]
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11. Knowledge Aims / C. Knowing Reality / 3. Idealism / b. Transcendental idealism
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21919
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Object for a subject and representation are the same thing
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14. Science / D. Explanation / 2. Types of Explanation / a. Types of explanation
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21917
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The four explanations: objects by causes, concepts by ground, maths by spacetime, ethics by motive [Lewis,PB]
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18. Thought / D. Concepts / 2. Origin of Concepts / b. Empirical concepts
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21921
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Concepts are abstracted from perceptions [Lewis,PB]
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20. Action / C. Motives for Action / 3. Acting on Reason / c. Reasons as causes
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21363
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Motivation is causality seen from within
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