- #1

- 42

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R = <r> = {nr : n an integer} for some r in R.

r^2 is in R so r^2 = kr for some integer k.

Does k have to divide the order of R?

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- #1

- 42

- 0

R = <r> = {nr : n an integer} for some r in R.

r^2 is in R so r^2 = kr for some integer k.

Does k have to divide the order of R?

- #2

Science Advisor

Gold Member

MHB

- 2,725

- 6

3 generates this ring, and 4= 3

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