How do I start off this equation?

Using correct mathematical notation and symbols, express the following in set builder notation: Z = {4, 5, 6, 7, 8, 9, 10, 11}

Z={n∈ℕ : 4≤n≤11}

reads
Z is formed by values of n belonging to the natural numbers such that 4 is less than or equal to n and n less than or equal to 11.