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Nov 26, 2013 at 10:47 vote accept StefanH
S Sep 8, 2013 at 6:22 history suggested SashaKolpakov CC BY-SA 3.0
edited the misspell $f_n(m)=0$, whenever $m\neq n$
Sep 8, 2013 at 5:57 review Suggested edits
S Sep 8, 2013 at 6:22
Sep 7, 2013 at 23:50 comment added StefanH guess you mean $f_n(n) = 1$ and $f_n(m) = 0$ for $m \ne n$.
Sep 7, 2013 at 17:47 history answered Joseph Van Name CC BY-SA 3.0