Full Idea
Objects like me have a few essential properties, and numerous accidental ones. Abstract objects are a different story. The intrinsic properties of the empty set are mostly essential. The relations of numbers are also mostly essential.
Gist of Idea
Concrete objects have few essential properties, but properties of abstractions are mostly essential
Source
Stephen Yablo (Abstract Objects: a Case Study [2002], 01)
Book Reference
-: 'Nous' [-], p.220