3 Weeks ago, I started learning about Groups. I have so much troubles with it, but I try and try, and most of it I can work out on my own, if I work hard enough (which is really really hard).
But this assignment is just to hard for me. Can someone please help me?
Exact copy of website: "
6.3 Show that the following are equivalent. (A,~) is a normal group. Let x,y in set A.
a) xyx'y = i
b) (xy)^2 = a^2 b^2
c) A is commutative