Question

If P = {positive integers} and subset T = {positive integers divisible by 3}, what is T′?

Answer 1

And How T' is defined?

Answer 2

@ivandelgado Are you there? Do you have the complete directives?
Thanks!

Answer 3

i think T' is the set of elements in P but not in T

Answer 4

{1, 2, 3, 4, …}

Answer 5

so T' = { x: x = positive integers not divisible by 3}