The group (Q*,o) where x o y = xy/7 G1 closure hold G2 Idenitiy - I have found the identity to be 7 I just need to prove G3 inversers and am not sure how to do this. Can anyone help? Many thanks. Arron
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We have ( is the unit), so . Thus, .
Originally Posted by emakarov . Thus, . What? doesn't it? -Dan
The OP has already established that the unit is 7.
No. The OP said that e=7 in his original post.
(Ahem!) Missed that. Thanks. -Dan
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