Full Idea
Not every meaningful predicate expresses an existing property; thus 'is non-self-exemplifying' cannot refer to a property, because the property would contradict the predicate.
Gist of Idea
'Is non-self-exemplifying' is a predicate which cannot denote a property (as it would be a contradiction)
Source
E.J. Lowe (A Survey of Metaphysics [2002], p.100)
Book Reference
Lowe,E.J.: 'A Survey of Metaphysics' [OUP 2002], p.100
A Reaction
Needs thought. The example is based on Russell's so-called Barber's Paradox. If it can't be a property, can it be a predicate?