Preso da http://www.gnu.org/gnu/gnu-linux-faq.html#why:

There are other ways to express "combination". If you think that a plus-sign is clearer, please use that. In French, a dash is clear: "GNU-Linux". In Spanish, we sometimes say "GNU con Linux".

^_^

2005/10/22, Sergio Bevilacqua <chrome@yoda.ing.unibs.it>:

On Sat, 2005-10-22 at 12:52 +0200, Danilo Bazzani wrote:
> Perchè non GNU+Linux ?
> Ciao, Danilo
>
nei documenti ufficiali è sempre riportato GNU/Linux. la forma GNU+Linux
non la usa nessuno, e personalmente non so nemmeno se è corretta

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--
~-- Free Software Foundation Member #3844 ---~
~--------------------------------------------------------------~
    Free software is a matter of liberty not price.
    You should think of "free" as in "free speech".
~------------------------------------------------------------------------------------------~
    Linux is the kernel, one of the essential major components of the
    system. The system as a whole is more or less the GNU system,
    with Linux added. When you're talking about this combination, please
    call it ``GNU/Linux''. ~ Richard Stallman
     http://www.gnu.org/gnu/why-gnu-linux.html
~------------------------------------------------------------------------------------------~