This is not to say that Forms cannot
instantiate other Forms, just that they do not merge into a single Form when they do.
If one were to put this in modern terminology, one would say that a form is a principle of structure; that an apprehending agency is an entity that has a higher-order form or structure which as such is indeterminate with respect to a range of more specific or lower-order states that it can
instantiate; and that to apprehend something is to have this range of states particularized to a specific state by acquiring the form of what is apprehended.
Vayrynen's most recent proposal is that moral principles could be (hedged) generalizations of the following (schematic) form: (HP) Any x that is G is M, provided that x
instantiates the designated normative basis of G's contribution to M.
It indicates or
instantiates a theater in real space and real time.
Kind Transubstantiation: It would be possible for an object to
instantiate the same substance kinds it actually
instantiates, even if all its causal powers were different.
It is interesting to notice that MFC is better than WR in terms of page faults, and this is due to the fact that WR
instantiates the first variable in the whole space.
Their accounts fail to deal satisfactorily with the facts that (1) typically, an item that
instantiates one natural kind
instantiates several -- "the higher-level natural kinds problem"; and (2) natural kinds often occur in nature in impure form -- "the composition problem".
Peter Forrest argues that universals can exist even if no particular
instantiates them: reference is made to uninstantiated universals in scientific explanations which appeal to the non-actual states of physical systems.