Now that the theoretical framework inside which the present work is set has been spelled out we are in a position to formulate and attempt to solve two very fundamental problems for trope theory. Tropes, it is assumed, must be able at least to fulfil their basic function as truth-makers. But the existence of singular tropes does not seem sufficient to provide for the truth of every kind of atomic proposition. Tropes are particular, but in some cases the truth-makers required to account for truth appear to be universal. Tropes are abstract, but in some cases the truth-makers required to account for truth appear to be concrete.