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Re: Binary Relations, draft 1

At 23:13 1998-11-17 +0100, Hans Aberg wrote:

>The traditional typographical explanation, or rule, that names such as
>"sin", "cos" should be typeset upright is that these are functions. But
>this does not explain why the "f" in f(x) should be typeset as a variable,
>when it clearly is a function. 

I think the reason (if any) to make the distinction of setting these upright
is that they are mulitletter combinations rather than that they are functions.
This helps distinquish `sin' from the product of s, i, and n.

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