Talk:Sum of Euler Phi Function over Divisors
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The bit `As each of the integers $1, 2, \ldots, n$ lies in exactly one of the $S_{d_j}$, it follows that:` is not at all clear, and needs its own paragraph, perhaps even a lemma.
- You're right, it is a bit handwavey. Needs to be rewritten.
- BTW please sign your posts on chat pages. --prime mover (talk) 06:55, 7 October 2014 (UTC)
- This ought to suffice. — Lord_Farin (talk) 16:57, 7 October 2014 (UTC)
I added the "strange but true" when I first posted it up, as it has always been a result that has amused me. --prime mover (talk) 17:37, 7 October 2014 (UTC)