Quote:
Originally Posted by AirKuhl
Well sure, pull a limit function out in a polite conversation....
Ok then, if it's a limit then graphically, what we're talking about is a linear asymptotic function where the line you are approaching is "1", right? But by definition, your curve can never touch the line, thus you just proved that 0.9 repeating can never equal 1. 
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ooooo quite an argument. if u plot value vs n (y axis is 0.999999manydigits, x axis is number of reps), yes the curve will never touch 1 for any finite x. this should be pretty obvious since 0.9(a gajillion digits) still isn't 1. however 0.9(gajillion digits) isn't 0.9(infinite digits).