Combining Texts
Ideas for
'On the Question of Absolute Undecidability', 'Tractatus Logico-Philosophicus' and 'Necessity and Non-Existence'
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13 ideas
10. Modality / A. Necessity / 3. Types of Necessity
9442
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The only necessity is logical necessity [Wittgenstein]
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10. Modality / A. Necessity / 8. Transcendental Necessity
15064
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Proper necessary truths hold whatever the circumstances; transcendent truths regardless of circumstances [Fine,K]
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10. Modality / C. Sources of Modality / 6. Necessity from Essence
15070
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It is the nature of Socrates to be a man, so necessarily he is a man [Fine,K]
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10. Modality / D. Knowledge of Modality / 1. A Priori Necessary
23495
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The tautologies of logic show the logic of language and the world [Wittgenstein]
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10. Modality / D. Knowledge of Modality / 4. Conceivable as Possible / a. Conceivable as possible
23487
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What is thinkable is possible [Wittgenstein]
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10. Modality / E. Possible worlds / 1. Possible Worlds / a. Possible worlds
23470
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Each thing is in a space of possible facts [Wittgenstein]
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10. Modality / E. Possible worlds / 2. Nature of Possible Worlds / a. Nature of possible worlds
15069
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Possible worlds may be more limited, to how things might actually turn out [Fine,K]
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15068
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The actual world is a totality of facts, so we also think of possible worlds as totalities [Fine,K]
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23507
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Unlike the modern view of a set of worlds, Wittgenstein thinks of a structured manifold of them [Wittgenstein, by White,RM]
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23469
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An imagined world must have something in common with the real world [Wittgenstein]
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10. Modality / E. Possible worlds / 3. Transworld Objects / a. Transworld identity
11027
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To know an object you must know all its possible occurrences [Wittgenstein]
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23465
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The 'form' of an object is its possible roles in facts [Wittgenstein]
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10. Modality / E. Possible worlds / 3. Transworld Objects / d. Haecceitism
12869
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Two objects may only differ in being different [Wittgenstein]
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