Full Idea
The new kind of abstract objects are not creations of the human mind. ...The existence of such objects depends upon whether or not the relevant equivalence relation holds among the entities of the presupposed kind.
Gist of Idea
Abstracted objects are not mental creations, but depend on equivalence between given entities
Source
B Hale / C Wright (Intro to 'The Reason's Proper Study' [2001], 3.2)
Book Reference
Hale,B/Wright,C: 'The Reason's Proper Study' [OUP 2003], p.17
A Reaction
It seems odd that we no longer have any choice about what abstract objects we use, and that we can't evade them if the objects exist, and can't have them if the objects don't exist - and presumably destruction of the objects kills the concept?