Combining Texts
Ideas for
'Mathematical Methods in Philosophy', 'works' and 'A Powers Theory of Modality'
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14 ideas
10. Modality / A. Necessity / 10. Impossibility
14377
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Possibilities are manifestations of some power, and impossibilies rest on no powers [Jacobs]
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10. Modality / B. Possibility / 1. Possibility
14376
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States of affairs are only possible if some substance could initiate a causal chain to get there [Jacobs]
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10. Modality / B. Possibility / 9. Counterfactuals
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Counterfactuals invite us to consider the powers picked out by the antecedent [Jacobs]
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10. Modality / C. Sources of Modality / 1. Sources of Necessity
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Possible worlds are just not suitable truthmakers for modality [Jacobs]
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10. Modality / C. Sources of Modality / 5. Modality from Actuality
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All modality is in the properties and relations of the actual world [Jacobs]
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10. Modality / C. Sources of Modality / 6. Necessity from Essence
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We can base counterfactuals on powers, not possible worlds, and hence define necessity [Jacobs]
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10. Modality / E. Possible worlds / 1. Possible Worlds / a. Possible worlds
18745
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A Tarskian model can be seen as a possible state of affairs [Horsten/Pettigrew]
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18747
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The 'spheres model' was added to possible worlds, to cope with counterfactuals [Horsten/Pettigrew]
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10. Modality / E. Possible worlds / 1. Possible Worlds / b. Impossible worlds
18748
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Epistemic logic introduced impossible worlds [Horsten/Pettigrew]
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10. Modality / E. Possible worlds / 1. Possible Worlds / c. Possible worlds realism
12465
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Concrete worlds, unlike fictions, at least offer evidence of how the actual world could be [Jacobs]
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10. Modality / E. Possible worlds / 1. Possible Worlds / e. Against possible worlds
12464
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If some book described a possibe life for you, that isn't what makes such a life possible [Jacobs]
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12469
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Possible worlds semantics gives little insight into modality [Jacobs]
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18746
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Possible worlds models contain sets of possible worlds; this is a large metaphysical commitment [Horsten/Pettigrew]
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18750
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Using possible worlds for knowledge and morality may be a step too far [Horsten/Pettigrew]
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