Full Idea
Noonan suggests that the distinction between abstract and concrete objects should be seen as derivative from a difference between the relations centrally involved in criteria of identity associated with names of objects.
Gist of Idea
The abstract/concrete distinction is in the relations in the identity-criteria of object-names
Source
Bob Hale (Abstract Objects [1987], Ch.3.III)
Book Reference
Hale,Bob: 'Abstract Objects' [Blackwell 1987], p.56
A Reaction
[He cites Noonan 1976, but I've lost it] I don't understand this, but collect it as a lead to something that might be interesting. A careful reading of Hale might reveal what Noonan meant.
Related Ideas
Idea 14002 Possible worlds must be abstract, because two qualitatively identical worlds are just one world [Markosian]
Idea 10519 The abstract/concrete distinction is in the relations in the identity-criteria of object-names [Hale]