Re: (dsssl) Hypothetical question on namespaces

Subject: Re: (dsssl) Hypothetical question on namespaces
From: David Carlisle <davidc@xxxxxxxxx>
Date: Fri, 5 Oct 2001 09:31:33 +0100
> #t = subset?(SGML XML) 
>    and 
> #t = subset(XML XMLnamespace)
>     but
> #f = subset(SGML XMLnamespace)

your second premise is wrong (backwards in fact). If the subset?
relation is defined by X is a subset of Y if every X-application is a
Y-application then
XML is a subset of XML as given a suitable SGML declaration, every SGML
parser is an XML parser

but XML namespaces is an extra layer of processing, so it is not true
that every XML application is an XMLnamespace application. Rather it is
the other way round. Every XMLnamepace application is an XML one.


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