{x|x ∈ N, 1 ≤ x < 4} = _____?

{x|x ∈ N, 1 ≤ x < 4} = _____?

Explanation

The given set:

{x|x ∈ N, 1 ≤ x < 4}

Can be read as:

The set of all natural numbers x such that 1 ≤ x < 4

This includes the numbers 1, 2, and 3, but excludes 4.