# Frobenius density theorem

As mentioned by @MichaelZieve in his comment re Quadratic residue, Chebotarev's density theorem was preceded by an allegedly much easier theorem of Frobenius (Mike Zieve is certainly not the only one to mention that the Frobenius theorem is much easier than Chebotarev) -- the difference between the two theorems is that Frobenius talks of conjugacy in $S_n,$ while Chebotarev of conjugacy in the Galois group itself. Does anyone know what the "easier" argument is? Is there a good reference?

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I just changed the link, since it pointed neither to the question nor the answer you mention, but to an other answer. –  quid Jul 7 at 19:40
@quid: thanks..! –  Igor Rivin Jul 7 at 21:20