>Number (multitude)
and magnitude are the generic kinds of quantity. As
continous and discontinous >quantity,
both are necessary in SO. Quantities with their relationships make
the subject of mathematics. >For
more, see the Quantity article, http://en.wikipedia.org/wiki/Quantity
Those objects that are “primitive”
in RDBs include numbers, Booleans, strings, and so forth. Although
mathematicians are concerned with numbers and their relationships, business
databases are not. They simply want to record quantities in individual
columns. For that reason, I think an FO should not dwell on numbers other than
to declare integers, reals, and datetimes as numbers and Booleans as truth
values. There is no gain in expanding business oriented RDBs to include number
theory beyond that.
Deeper concepts about numbers could be in
the next ontology down from the UHLO. That way number theorist mathematicians
could still work with RDBs, even though they tend to eschew them at this point
in time.
JMHO,
-Rich
Sincerely,
Rich Cooper
EnglishLogicKernel.com
Rich AT EnglishLogicKernel DOT com