Combining Texts
Ideas for
'Necessary Existents', 'The Principles of Mathematics' and 'Intro to 2nd ed of Principia Mathematica'
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5 ideas
7. Existence / A. Nature of Existence / 3. Being / a. Nature of Being
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Being is what belongs to every possible object of thought [Russell]
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7. Existence / A. Nature of Existence / 3. Being / b. Being and existence
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Many things have being (as topics of propositions), but may not have actual existence [Russell]
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7. Existence / A. Nature of Existence / 6. Criterion for Existence
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What exists has causal relations, but non-existent things may also have them [Russell]
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7. Existence / C. Structure of Existence / 6. Fundamentals / d. Logical atoms
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Given all true atomic propositions, in theory every other truth can thereby be deduced [Russell]
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7. Existence / E. Categories / 3. Proposed Categories
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Four classes of terms: instants, points, terms at instants only, and terms at instants and points [Russell]
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