namespaceURI="http://www.w3.org/1998/Math/MathML"
attrsNullNamespace
-alttext
-background
-close
-color
-columnspan
definitionURL
-denomalign
encoding
-fontfamily
-fontsize
-fontstyle
-fontweight
-linethickness
-mathbackground
-mathcolor
-mathsize
-mathvariant
-numalign
-open
-rowspan
-separators
-stretchy