Fixed typo
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		| @ -74,7 +74,7 @@ The set of all units in $\mathbb{Z}_n$ is written $\mathbb{Z}_n^\times$ \\ | ||||
| Read this as \say{$\mathbb{Z}$ mod $n$ cross} | ||||
|  | ||||
| \problem{} | ||||
| What are the elements of $\mathbb{Z}_5^\times$? | ||||
| What are the elements of $\mathbb{Z}_5)^\times$? | ||||
|  | ||||
| \begin{solution} | ||||
| 	$\{1, 2, 3, 4\}$ | ||||
|  | ||||
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