Set representations C=a,b,c,d,e,f,g, h, i,j, k C={a,b,…,k finite set S={2,4,6,…} infinite set s=:j>0, and j=2k for k>0) s=j: j is nonnegative and even jSet Representations C = { a, b, c, d, e, f, g, h, i, j, k } C = { a, b, …, k } S = { 2, 4, 6, … } S = { j : j > 0, and j = 2k for k>0 } S = { j : j is nonnegative and even } finite set infinite set