Full Idea
A completely bare substratum seems not just incoherent but also unable to carry out the function for which it is intended - to be a substratum.
Gist of Idea
A substratum can't be 'bare', because it has a job to do
Source
Robert Pasnau (Metaphysical Themes 1274-1671 [2011], 03.3)
Book Reference
Pasnau,Robert: 'Metaphysical Themes 1274-1671' [OUP 2011], p.49