On Jan 29, 2009, at 11:13 PM, John F. Sowa wrote: (01)
> Ed,
>
> I just want to point out an important class of common triads.
>
>> Examination of the dependencies in a ternary or quaternary
>> relationship often reveals an intermediate object that has
>> semantics and should actually be called out in creating
>> a strong ontology for the domain in question.
>
> All the basic arithmetic operators, + - * /, take two inputs
> and generate one output. Trying to represent simple arithmetic
> expressions with only dyadic relations creates very awkward,
> unnatural and unreadable statements.
> (02)
Agreed, but the main problem there is treating these as relations at
all. They are functions. In passing defense of the unary/binary OWL,
no sane person would suggest using OWL properties to represent
arithmetic functions. (03)
Pat (04)
> There are many other examples, but these are the most obvious.
>
> John
>
>
>
>
>
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> (05)
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