On 9 December 2012 01:36, Raul Miller <rauldmil...@gmail.com> wrote:
> That sounds like the approach of an orthodoxy rather than of a
> scientific research community.

Then let the 'scientific research community' produce at least one
study of the kind you said you don't know to exist.  Until then what
you call orthodoxy I consider plain common sense.

> If that is a valid representation of your point of view

Of course not, but don't let this bother you.

> For that matter, contrast:
>
> 2dx+3dy
>
> with
>
> 2dm+3km

I don't see your point, and even the relevance to algebraic notation.

> x0 + x1 + x2
> e0 + e1 + e3
> 2x0 + 2x1 + 2x2
> 2e0 + 2e1 + 2e3
>
> The resolution to these issues, of course, is to be very careful what
> we write (for example, if the class uses scientific notation we avoid
> using e as a variable in a context where it might be confusing).

So what?  Symbols are always interpreted in a context.
What is the point of your example?
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