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(Getting back to this after some traveling.)

bshapiro> Is there some way a function reference to a
bshapiro> function in the <listOfFunctionDefintions> can
bshapiro> be added to either of these methods to make the
bshapiro> model both self-contained and non-duplicitous?
bshapiro> The positional arguments of the <csymbol>
bshapiro> approach fit in with this scheme perfectly.

Bruce,

Thanks for your thoughts on this. In fact, I do believe it
could be done using user-defined functions too. The reason
I hadn't pursued it in that proposal is I know a number of
tools don't support user-defined functions, and so making
the scheme rely on user-defined functions would have added
another level of requirements on implementations.

However, your point about duplicating definitions is a good
one. It's probably worth adding this as a 3rd option to a
2nd revision of the proposal. (I spotted a significant
error yesterday in the current proposal and so have to issue
an update anyway. I'll add it then, assuming there don't
end up being any technical hurdles.)

MH