Question

If N = {all real numbers} and subset S = {multiples of 2 greater than zero}, what is S′

Answer 1

S' is the compliment of S. The elements of S' are just every element not in S.

Answer 2

Here's an example:
If set A = {Even numbers}
A' = {Numbers not even} = {odd numbers}

Answer 3

@SmoothMath Even the negative numbers, rational numbers(fractions,decimals) etc.

Answer 4

Well, it actually depends on the universe we're discussing. If A is being considered as a subset of the real numbers, then yes. If A is being considered as a subset of the natural numbers, then A' would simply be {odd numbers}

Answer 5

If A is a subset of B
A' = elements of B not in A