Combining Texts
Ideas for
'Wisdom', 'The Passions of the Soul' and 'The Principles of Mathematics'
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5 ideas
4. Formal Logic / F. Set Theory ST / 3. Types of Set / b. Empty (Null) Set
14113
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The null class is a fiction [Russell]
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4. Formal Logic / F. Set Theory ST / 5. Conceptions of Set / d. Naïve logical sets
15894
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Russell invented the naïve set theory usually attributed to Cantor [Russell, by Lavine]
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4. Formal Logic / F. Set Theory ST / 6. Ordering in Sets
14126
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Order rests on 'between' and 'separation' [Russell]
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14127
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Order depends on transitive asymmetrical relations [Russell]
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4. Formal Logic / G. Formal Mereology / 1. Mereology
14121
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The part-whole relation is ultimate and indefinable [Russell]
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