Unformatted text preview: Z given by { ( a,b )  n divides ab } . a. Prove that â‰¡ n is an equivalence relation on Z . b. Determine the equivalence class of a âˆˆ Z . c. By looking at a few cases with small values of n , make a guess as to how many equivalence classes there are....
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 Fall '09
 RyanDaileda
 Math, Equivalence relation, equivalence class, Congruence relation, Partition of a set

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