properties of masses

["John E. Clifford" <pcliffje@crl.com>]

The short word for the relation between the properties of components of a
mass and tose of the mass is "sum," in its broadest (or most ambiguous)
sense.  Sometimes, as in weights, it is an arithmetic sum; other times,
as with the classic "inhabit," it is logical sum ("or," so if one
component has it the mass does); often it is some metaphorical, like the
teamwork cases.  In almost all of these but the arithmetic one, we can
shorthand by using the mass wherever we might use the name or cluster of
names of members and get the right result.
There is, consequently, no way to get from the proeprties of the mass to
those of the components -- at least not specific components.
pc>|83