From: Ian Hickson <ian@hixie.ch>

Date: Wed, 4 Oct 2006 00:38:44 +0000 (UTC)

To: Paul Topping <pault@dessci.com>

Cc: David Carlisle <davidc@nag.co.uk>, www-math@w3.org, dev-tech-mathml@lists.mozilla.org

Message-ID: <Pine.LNX.4.62.0610040036350.25753@dhalsim.dreamhost.com>

Date: Wed, 4 Oct 2006 00:38:44 +0000 (UTC)

To: Paul Topping <pault@dessci.com>

Cc: David Carlisle <davidc@nag.co.uk>, www-math@w3.org, dev-tech-mathml@lists.mozilla.org

Message-ID: <Pine.LNX.4.62.0610040036350.25753@dhalsim.dreamhost.com>

On Tue, 3 Oct 2006, Paul Topping wrote: > > The type of the XML island must be declared somehow or it would > certainly be making more tag soup. As has been stated by other posters, > you either have to duplicate MathML (or some subset of it) in HTML5 or > you have to connect it to the MathML definition. The way one references > an XML definition is by declaring its namespace. One could define that > namespace implicitly in HTML5 by stating in the HTML5 spec that <math> > means MathML 2.0 or whatever. Of course, this locks MathML to one > specific version -- not a good thing. The proposal that I understand Roger intends to experiment with is making any tag in a particular list of tags be added to the DOM as a node not in the XHTML namespace but in the MathML namespace. The MathML namespace doesn't change between versions, since MathML is backwards compatible across versions. Thus there is no "lock-in" problem, just like there is no problem of HTML content being "locked" to a particular version of HTML. -- Ian Hickson U+1047E )\._.,--....,'``. fL http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'Received on Wednesday, 4 October 2006 00:39:06 UTC

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