Combining Texts
Ideas for
'What is the Source of Knowledge of Modal Truths?', 'On the Notion of Cause' and 'Significance of the Kripkean Nec A Posteriori'
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9 ideas
10. Modality / A. Necessity / 2. Nature of Necessity
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'Necessary' is a predicate of a propositional function, saying it is true for all values of its argument [Russell]
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10. Modality / A. Necessity / 3. Types of Necessity
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Logical necessities, based on laws of logic, are a proper sub-class of metaphysical necessities [Lowe]
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10. Modality / A. Necessity / 5. Metaphysical Necessity
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'Metaphysical' necessity is absolute and objective - the strongest kind of necessity [Lowe]
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10. Modality / B. Possibility / 2. Epistemic possibility
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'Epistemic' necessity is better called 'certainty' [Lowe]
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10. Modality / C. Sources of Modality / 3. Necessity by Convention
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A key achievement of Kripke is showing that important modalities are not linguistic in source [Soames]
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10. Modality / C. Sources of Modality / 6. Necessity from Essence
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If an essence implies p, then p is an essential truth, and hence metaphysically necessary [Lowe]
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16544
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Metaphysical necessity is either an essential truth, or rests on essential truths [Lowe]
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10. Modality / E. Possible worlds / 1. Possible Worlds / e. Against possible worlds
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We could give up possible worlds if we based necessity on essences [Lowe]
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10. Modality / E. Possible worlds / 2. Nature of Possible Worlds / a. Nature of possible worlds
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Kripkean possible worlds are abstract maximal states in which the real world could have been [Soames]
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