 domain and we shouldn't assume that rules
written for one facet of the domain will be reusable for reasoning about
another facet of the domain.  If you give me a set of rules designed to reason
about automobile purchasing it's possible that it may not be very useful for
reasoning about automobile repair.  I may have to write new rules for
reasoning
about automobile repair.  This claims seems to be true and noncontroversial
but
is there more to it than this?


&gt;
&gt; In short (well, I guess I should s