4 Equivalence Set S Partitions S Disjoint Subsets Called Equivalence Classess Span S Consi Q37094427

4. An equivalence on a set S partitions S into disjoint subsets called equivalence classess that span S. Consider the mod 7 equivalence on the integers Z. (a) (5 pts) How many equivalence classes are created by congruence mod 77 (b) It is common to name an equivalence class by

OR

 

OR