[whatwg] Mathematics in HTML5

[White Lynx]

Anne van Kesteren wrote:
> So WHATWG doesn't really care about DTDs. (There are two people  
> involved with that though for validating.) 
This is important issue, because requirement to keep DTD accurate imposes certain
constraints on markup (for example DTD fails to catch errors like 
<a href="#top"><span><a href="#bottom">link</a></span></a>)
therefore it is better to know in advance whether normative DTD is required
or not (Relax NG could be more suitable as it admits more accurate content models then DTD).

> What's needed for a  specification is error handling, how it interoperates with existing  
> HTML, etc.
All efforts will be made to keep markup clean and consistent, to avoid conflicts between 
presentational HTML elements and math oriented elements and to specify allowed 
nesting of elements properly.


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