Exercise
Which of the following maps is a morphism of groups?
f : Sn -> Sn,
f(x) = (1, 2)x(1, 2)
f : Sn -> Sn,
f(x) = (1, 2, 3)x(1, 2, 3)
f : Sn -> Sn,
f(x) = (1, 2)x
Yes.
No, what is the image of the identity?
No, what is the image of the identity?