[MathML3-last-call] dir listed twice for math element in schema

Note:  this is a (real life) example of a bug report for MathML last call.
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next few days.  As we've been working through implementations, generating
tests, etc., we've accumulated some bug reports.

Onto the report...

The math element explicitly lists "dir" as an attribute.  However, the math
element also accepts everything accepted by mstyle.  Because mstyle also
lists 'dir', 'dir' is effectively listed twice in the schema for the math
element.  I think the explicit listing on the math element should be
removed.

Neil Soiffer
Senior Scientist
Design Science, Inc.
www.dessci.com
~ Makers of MathType, MathFlow, MathPlayer, MathDaisy, WebEQ, Equation
Editor ~