Universals (or abstracta) exist in the mind of God. They are instantiated in concreta. They are necessary but are dependent upon God. So they really exist (realism) but not independent of God.

See Greg Welty's Paper for a helpful discussion.

__________________
^Brian Lanier^
Member: Redeemer Presbyterian Church (OPC)
Santa Maria, CA
Attending: First Presbyterian Church (OPC)
Sunnyvale, CA
http://www.lanier-perspective.blogspot.com