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Ideas for 'Does Emp.Knowledge have Foundation?', 'Essays on Active Powers 1: Active power' and 'Logic for Philosophy'

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2 ideas

10. Modality / E. Possible worlds / 3. Transworld Objects / a. Transworld identity

13717

Transworld identity is not a problem in de dicto sentences, which needn't identify an individual [Sider]

10. Modality / E. Possible worlds / 3. Transworld Objects / e. Possible Objects

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Barcan Formula problem: there might have been a ghost, despite nothing existing which could be a ghost [Sider]