Question

Which of the following sets is equal to {1, 2, 3, ...}?

{x | x R, x > 1}
{x | x R, x ≥ 1}
{x | x N, x ≥ 1}

Answer 1

Well you can eliminate 1 right away since you know it's less than and = to 1.

Answer 2

So which one do you think it is now from b or c :P

Answer 3

I think B

Answer 4

I think you're right ^.^