Re: show that Q/Z has a unique subgroup of order n for each positive integer n.



On 29-10-2007 23:33, freeride14@xxxxxxxxxxx wrote:

Show that Q/Z has a unique subgroup of order n for each positive
integer n.

how do you prove this?

For each integer _n_, which are the elements of Q/Z of order _n_?

Best regards,

Jose Carlos Santos
.