display all the ideas for this combination of texts
3 ideas
13717 | Transworld identity is not a problem in de dicto sentences, which needn't identify an individual [Sider] |
5039 | If non-existents are possible, their existence would replace what now exists, which cannot therefore be necessary [Leibniz] |
13719 | Barcan Formula problem: there might have been a ghost, despite nothing existing which could be a ghost [Sider] |