attributeGroup base
version
namespace http://www.w3.org/1998/Math/MathML3
attributes
Name Type Use Default Fixed annotation
base required
source <xsd:attributeGroup name="base">
<xsd:attribute name="base" use="required">
</xsd:attribute>
</xsd:attributeGroup>


attribute base/@base
source <xsd:attribute name="base" use="required"/>