Combining Philosophers
Ideas for Donald Davidson, Gary Gutting and John P. Burgess
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6 ideas
10. Modality / A. Necessity / 4. De re / De dicto modality
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De re modality seems to apply to objects a concept intended for sentences [Burgess]
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10. Modality / A. Necessity / 6. Logical Necessity
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General consensus is S5 for logical modality of validity, and S4 for proof [Burgess]
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Logical necessity has two sides - validity and demonstrability - which coincide in classical logic [Burgess]
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10. Modality / B. Possibility / 6. Probability
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Probability can be constrained by axioms, but that leaves open its truth nature [Davidson]
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10. Modality / B. Possibility / 8. Conditionals / a. Conditionals
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Three conditionals theories: Materialism (material conditional), Idealism (true=assertable), Nihilism (no truth) [Burgess]
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It is doubtful whether the negation of a conditional has any clear meaning [Burgess]
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