0.999 = 1
0.999 = 1
Out of context: Reply #11
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http://en.wikipedia.org/wiki/0.9…
"the notations "0.999..." and "1" represent the same real number. The equality has long been accepted by professional mathematicians and taught in textbooks. Various proofs of this identity have been formulated with varying rigour, preferred development of the real numbers, background assumptions, historical context, and target audience."