Re: MathML problems with Mozilla Firefox

Mozilla has a modified version of the DTD so not all the entity names
are defined, and of course for some symbols you may need non standard
fonts, but I'd have expected those to wrok.
Mozilla should (so long as you have specified a MathML (or MathML+XHTML)
DTD use teh DTd in $MOZILLAHOME/res/dtd/mathml.dtd which defines for
example
<!ENTITY InvisibleComma '&#x200B;'> and
<!ENTITY ZeroWidthSpace '&#x200B;'> 
ie defines both of these to be the unicode zero width spaace.

If you haven't specified a <!DOCTYPE then any use of any entity
reference other than teh five pre-declared XML entities makes the
document not well formed and an error will be flagged by any XML parser.

David

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