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Prove that every element of a susbet is of finite order.

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Let G= , x*y be the fractional part of x+y .(i.e:x*y=x+y-[x+y] where
[a] is the greatest integer less than or equal than a).
Show that all the elements of the subset of all rational elements of this group are of finite order.

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Let G= , x*y be the fractional part of x+y .(i.e:x*y=x+y-[x+y] where
[a] is the greatest integer less than or equal than ...

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It is proven that every element of a susbet is of finite order. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.

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