Ideas from 'Abstract Entities' by Chris Swoyer [2008], by Theme Structure

[found in 'Contemporary Debates in Metaphysics' (ed/tr Sider/Hawthorne/Zimmerman) [Blackwell 2008,978-1-4051-1229-1]].

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7. Existence / A. Nature of Existence / 1. Nature of Existence
Ontologists seek existence and identity conditions, and modal and epistemic status for a thing
7. Existence / A. Nature of Existence / 4. Abstract Existence
Some abstract things have a beginning and end, so may exist in time (though not space)
8. Modes of Existence / B. Properties / 1. Nature of Properties
Can properties exemplify other properties?
9. Objects / A. Existence of Objects / 5. Simples
Quantum field theory suggests that there are, fundamentally, no individual things