Frank wrote --

>  > I didn't explain clearly. What we have now is that
>  >
>  > (a) For people with GUI interface like Scientific Word, the software has
>  > to deal with the ambiguity as best it can.
> and what I am saying is that they can't, really, deal with it. they have to
> provide a math markup and there is no way to identify something as "this
> should be math" automatically. so there is no real solution to the problem
> that people by mistake leave the needed markup out.

YEs and in fact this applies to a lot of the clever stuff that SW does
to help the author.  It works 99% of the time ... magnificent for
a Windows application:-).