page1935 Rings Matthias Lorentzen...mattegrisenforlag.com
Look at the picture beneath, then
scroll down to the question and click the correct Answer button.
Question
Consider the subgroup
S = {`0 , alpha , alpha^2 , alpha + alpha^2`} of `ZZ_2(alpha)`.
Which of the following statements is correct:
A) S is isomorphic to `ZZ_4` and has exactly one
element of order 4.
B) S is isomorphic to `ZZ_2 times ZZ_2` and all
non-zero elements have order 2.
?
