Full Idea
Pure trope theorists must apparently hold that each trope has its identity underivatively, not that it depends for it on or owes it to other entities of any sort.
Gist of Idea
Tropes have existence independently of any entities
Source
E.J. Lowe (An essentialist approach to Truth-making [2009], p.207)
Book Reference
'Truth and Truth-Making', ed/tr. Lowe,E.J./Rami,A. [Acumen 2009], p.207
A Reaction
Lowe defends dependent 'modes' of things, against independent 'tropes'. Good, but he then has to say what the thing is (a modeless 'substance'?), because it can't just be a bundle of modes or tropes.