Re: Identity constraint questions

Jeni Tennison <jeni@jenitennison.com> writes:

> I think that if you want the same identity constraint to apply for the
> elements in the sequence in the restricted type as apply to the
> elements in the sequence in the base type, then you have to include
> the identity constraint in element declaration for the restricted
> type. If you leave out the identity constraint from the element
> declaration in the restricted type, then I don't think it applies.

We got that wrong, didn't we :-(?

If you take away a constraint, you _add_ to the set of valid
instances!  The subset requirement should run the _other way_!

ht
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  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
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