Combining Texts
Ideas for
'Two Kinds of Possibility', 'The Problem of Counterfactual Conditionals' and 'The Rationality of Science'
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6 ideas
10. Modality / A. Necessity / 1. Types of Modality
12205
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There are two families of modal notions, metaphysical and epistemic, of equal strength [Edgington]
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10. Modality / A. Necessity / 5. Metaphysical Necessity
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Metaphysical possibility is discovered empirically, and is contrained by nature [Edgington]
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10. Modality / A. Necessity / 6. Logical Necessity
12206
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Broadly logical necessity (i.e. not necessarily formal logical necessity) is an epistemic notion [Edgington]
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12208
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An argument is only valid if it is epistemically (a priori) necessary [Edgington]
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10. Modality / B. Possibility / 9. Counterfactuals
12191
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Counterfactuals are true if logical or natural laws imply the consequence [Goodman, by McFetridge]
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10. Modality / C. Sources of Modality / 1. Sources of Necessity
3867
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De re necessity arises from the way the world is [Newton-Smith]
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