I need help EQUIVALENT RELATIONS!!!
Extracted text: 17. Equivalence relations 1. Let X = {a, b, c, d, e, f} and R be the relation on X defined by R= {(a, a), (a, b), (a, e), (b, a), (b, b), (b, e), (c, c), (c, f), (d, d), (e, a), (e, b), (e, e), (ƒ, c), (f, f)}. Is R an equivalence relation? If so, draw a digraph and give the equivalence classes. If not, give an example, showing why.