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December 26th, 2014, 07:58 PM   #111
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Quote:
 Originally Posted by lemgruber Definily, throug away!
And then if the question is asked to you : How many numbers exist in mathematics ? What will you say ?

 December 26th, 2014, 08:14 PM #112 Senior Member   Joined: Dec 2014 From: Brazil Posts: 203 Thanks: 1 Should infinity be removed from mathematics? If proof the end of russell paradox, we have admit a set selfcause, and this so can possible if exist a perfect set, this implicate a end of infinity, because noneset can be more big. Now, the problem is other, must be a form of perfection of numbers, do you understand, the numbers pass a not infinity, but must be a quantity what going a perfection. how? I don't know. don't be nervous, I say this not for trouble, but learn more about. regards Lucio Marcos Lemgruber and company
December 28th, 2014, 08:40 PM   #113
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Quote:
 Originally Posted by Topsquark As x gets larger and larger the limit I suggested gets closer and closer to 1. But it never quite gets there. So how do you know it's really 1?
(1) Let n = .999999...

Multiply each side of (1) by 10

(2) 10n - 9.999999...

(2) - (1)

(3) 9n = 9.000000...

Divide each side of (3) by 9

(4) n = 1

From (1) and (4)

(5) .999999... = 1

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