Wasell
Posts:
8
Registered:
9/29/10


Re: proof for .9999999=1
Posted:
Dec 27, 2010 11:46 AM


On Sun, 26 Dec 2010 08:14:02 EST, in article <1383820098.60421.1293369272072.JavaMail.root@gallium.mathforum.org>, jay kirschbaum wrote: > > This discussion is pretty old but I am looking for more proofs beyond the convincing one I learned in high school  > > If .333333.... = 1/3 > and .333333.... x 3 = .9999999...... > and 1/3 X 3 = 1 > then .99999..... = 1
For a general discussion and a few informal proofs, see: <http://en.wikipedia.org/wiki/0.999...>
For an indisputable formal proof, see: <http://us.metamath.org/mpegif/0.999....html>
 Wasell
"You're at the bottom of the class. Lots of verbiage but the mathematics escapes you."  James S. Harris

