Exercise
What is the order of
G
1
×
G
2
?
|
G
1
| · |
G
2
|
|
G
1
| + |
G
2
|
|
G
1
|
|
G
2
|
Of course!
No.
No.
|G1| · |G2|
|G1| + |G2|
|G1||G2|
|G1| · |G2|
|G1| + |G2|
|G1||G2|