Combining Texts

Ideas for 'On the Question of Absolute Undecidability', 'Tractatus Logico-Philosophicus' and 'De Re and De Dicto'

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13 ideas

10. Modality / A. Necessity / 3. Types of Necessity
9442 The only necessity is logical necessity [Wittgenstein]
10. Modality / A. Necessity / 4. De re / De dicto modality
14642 Expressing modality about a statement is 'de dicto'; expressing it of property-possession is 'de re' [Plantinga]
14643 'De dicto' true and 'de re' false is possible, and so is 'de dicto' false and 'de re' true [Plantinga]
14649 Can we find an appropriate 'de dicto' paraphrase for any 'de re' proposition? [Plantinga]
10. Modality / D. Knowledge of Modality / 1. A Priori Necessary
23495 The tautologies of logic show the logic of language and the world [Wittgenstein]
10. Modality / D. Knowledge of Modality / 4. Conceivable as Possible / a. Conceivable as possible
23487 What is thinkable is possible [Wittgenstein]
10. Modality / E. Possible worlds / 1. Possible Worlds / a. Possible worlds
23470 Each thing is in a space of possible facts [Wittgenstein]
10. Modality / E. Possible worlds / 2. Nature of Possible Worlds / a. Nature of possible worlds
23507 Unlike the modern view of a set of worlds, Wittgenstein thinks of a structured manifold of them [Wittgenstein, by White,RM]
23469 An imagined world must have something in common with the real world [Wittgenstein]
10. Modality / E. Possible worlds / 3. Transworld Objects / a. Transworld identity
11027 To know an object you must know all its possible occurrences [Wittgenstein]
23465 The 'form' of an object is its possible roles in facts [Wittgenstein]
14651 What Socrates could have been, and could have become, are different? [Plantinga]
10. Modality / E. Possible worlds / 3. Transworld Objects / d. Haecceitism
12869 Two objects may only differ in being different [Wittgenstein]