Question

write down the power set of {a, b, c}

Answer 1

{ (a,b) (a,c) (a,a) (b,a) (b,b) (b,c) (c,a) (c,b) (c,c) }
hope it helps...

Answer 2

{a}, {b}, {c}, {a,b}, {a,c}, {b,c} & Phie