Question

state the reason for the following(i) {1, 2, 3, ...., 10} ≠ {x : x ∈ N and 1 < x < 10} (ii) {2, 4, 6, 8, 10} ≠ {x : x = 2n 1 and x ∈ N} (iii) {5, 15, 30, 45} ≠ {x : x is a multiple of 15} (iv) {2, 3, 5, 7, 9} ≠ {x : x is a prime number