- #1
PsychonautQQ
- 784
- 10
Homework Statement
Groups G and H are both groups in Z_7 (integer modulo), the mapping Is given by ø(g) = 2g
is ø: G-->H a homomorphism?
The Attempt at a Solution
My textbook says yes, I can't understand why.
ø(g1g2) = 2(g1g2) does not equal 2g1*2g2 = ø(g1)ø(g2)
something missing here?