 The second concern is that taking the disjuncts identified with determinates to be genuinely resembling, as is needed in order to answer Armstrong’s concern and to provide an alternative basis for the contrast flagged in Non-disjunctive specification, will open the door to looking for a source of the supposed commonality, which source might well end up being an irreducible determinable. Here again the question of how best to treat the inexact resemblance between determinates is pressing.