Yes, you can. MathLingua makes no assumptions about what symbols are used to represent different math operations (other than KaTeX is used to render expression

Yes, you can. MathLingua makes no assumptions about what symbols are used to represent different math operations (other than KaTeX is used to render expressions and so you need to symbols KaTeX recognizes). As such you can use whatever visual representation you want for operations and definitions. For a particular math definition, you can also specify multiple different notations for the concept (in this case, MathLingua uses the first one when rendering results). An example of this is the derivative of a function in the “A Detailed Example” section of the docs.