Sounds reasonable to me.
I'd just like to add that I would argue (if so prevoked :-) that
theories can be false or true or partially true or approximately
true or true but not relevant to the question at hand but they
can't be true at one time or in one culture but false in other
circumstances (unless the theory contains a reference to a
specific time or culture). This is a natural consequence of the
existence of an objective truth.
But then I have to wonder about certain interpretations of
quantum mechanics wherein the act of observing actually changes
what is being observed. It seems to me that this might make the
existence of an objective truth less tenable.
Hmmm... I'm really just thinking aloud... perhaps not a good
idea.
Jason