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• CommentRowNumber1.
• CommentAuthorUrs
• CommentTimeMay 26th 2014
• (edited May 26th 2014)

I gave root of unity its own entry (it used to redirect to root), copied over the paragraph on properties of roots of unities in fields, and added a paragraph on the arithmetic geometry description via $\mu_n = Spec(\mathbb{Z}[t](t^n-1))$ and across-pointer with Kummer sequence.

• CommentRowNumber2.
• CommentAuthorTobyBartels
• CommentTimeMay 26th 2014

Did you mean to leave all of that copied stuff in root?

• CommentRowNumber3.
• CommentAuthorUrs
• CommentTimeMay 26th 2014

I’ll let you decide. Whatever seems better.

• CommentRowNumber4.
• CommentAuthorTodd_Trimble
• CommentTimeMay 26th 2014

It seems easier just to leave it there, but as long as everything links or redirects to the appropriate place, either way seems fine. I think for example that quadratic reciprocity had a link to root, although it was really to the stuff now in root of unity.