Elements that can be included along with data characters inside the content model of the <inline-formula> element
<!ENTITY % inline-formula-elements "| %emphasis.class; | %inline-display.class; | %inline-math.class; | %math.class; | %phrase-content.class; | %subsup.class;" >
| bold | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | strike | underline | underline-start | underline-end | alternatives | inline-graphic | private-char | chem-struct | inline-formula | tex-math | mml:math | named-content | styled-content | sub | sup
math3.ent