John Cowan wrote:
>  
>  james anderson scripsit:
>  
>  > The declarations need appear in only those places analogous to those in which they would
 have to appear within the document entity.
>  > Where they are declared as default values, these are the only declarations which are nec
essary.
>  
>  But people are free to use unnecessary declarations, and sometimes do.
>  Trying to figure out, indeed, just where necessary declarations must
>  appear (unless you punt and put them all on the root element) is quite
>  difficult for unaided human brains in complex cases.

Is it more of a conceptual challenge to add an attribute declaration to the internal subset 
than it is to add a global namespace
declaration to the internal subset? The only difference is that the attribute declaration rq
uires that one must determine the
"root" element. I would have thought one needed to make that decision in order to encode the
 internal subset.

>  
>  > I agree, that it is gratuitous to require that xmlns:* attributes be declared for an ele
ment to be valid. On the other hand,
>  > where they are declared, they must be reported as default values.
>  
>  Then let us not permit their declaration at all!
>  

With which goal?

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