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June 11th, 2014, 11:15 AM   #1
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If f is a permutation of the set of pozitive integers.
What does it mean :$\displaystyle (f(n))_{n\epsilon N}$
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June 11th, 2014, 12:28 PM   #2
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Originally Posted by Roli View Post
What does it mean :$\displaystyle (f(n))_{n\epsilon N}$
Probably the infinite sequence $(f(1),f(2),f(3),\dots)$ (if $\Bbb N$ starts with 1).
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