I have the following statement (which is false) and I'm trying to understand why, I can't find a concrete example.
If $a$ belongs to $Z_n$ and $a^2 = 1$ then $a=1$ or $a=-1$
Can someone give me a direction?
Guy
I have the following statement (which is false) and I'm trying to understand why, I can't find a concrete example.
If $a$ belongs to $Z_n$ and $a^2 = 1$ then $a=1$ or $a=-1$
Can someone give me a direction?
Guy