01-29-2008
| #11 (permalink) | |
 Resident Diabolist   | Re: Arithmatic expression vs. set description connotation of the square root Why doesn't it matter? I mean it should be astated in a definition if it is not unique (would have saved me half an hour), so to me it would have matered very much! But I agree in practictal things it doesn't seem to matter...usually  ---------------- Administrator A COUNTRY WITHOUT AN ARMY IS LIKE A FISH WITHOUT A BIKE!!! I don't believe in god, but I do believe in what others call utopies. | |
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01-29-2008
| #12 (permalink) | ||
 Exhausted Gondolier | Re: Arithmatic expression vs. set description connotation of the square root Quote:
However, because the constructive definition of the unit doesn't distinguish between them, it's true that you could exchange them; this is an automorphism of  and, unlike changing sign in  , not just of the additive group but of the actual field. This automorphism is, of course, complex conjugation.In any case, good question. ---------------- Who's afraid of the Big Black Hole????? Go Black Hole! W the Black Hole!  Hasta que el agujero negro nos traga, siempre! Hypography Forum PITA...... er, Administrator.  | ||
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