ce of this (I believe) is that modal logic is not required.

REPRESENTATION

KIF is a language, so is EXPRESS. Languages inevitably have capabilities and
limitations. 

GH&gt;	My gut feel is that you are here distinguishing between ideal and
real languages. 

A viewpoint can be mapped onto the constructs of a language, in more than
one way. It then becomes important to consider how you intend to undertake
the mapping. There are advantages in doing so in a consistent manner, and in
being aware of what it is 