Here is a rather nice video that explains just how bad maths notation is at describing maths operations without a mountain of implicit assumptions about what each expression means: https://m.youtube.com/watch?v=iqlxsSrd-M4
This does not answer my question. For the third time, we are talking about writing a document, not doing maths. At this point I just think you're being obtuse
If you aren't doing maths when you're writing or reading a maths document I have no idea what you're doing, but you sure as hell aren't reading it in any sense a mathematician would recognise.
