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  3. 4 4 points it can be shown that congruence mod...

Question: 4 4 points it can be shown that congruence mod...

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4. (4 points.) It can be shown that congruence mod 5 is an equivalence relation.4 One equivalence classe for this relation is the set . 12,-7,-2,3,8, 13, 18,...). This equivalence class can be denoted as 3] or as I-12]; that is, 3 I-12]- -12,-7,-2,3, 8, 13,18,...). Of course there are infinitely many other names for it as well; if a is any element of the set, then (al is a standard way to denote the equivalence class. Give the rest of the equivalence classes, presenting each one as Ive presented this one-that is, giving it by roster and with TWO square-bracket names for it.
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