Question

J =x
J=?

Answer 1

in the Set Builder notation J = x ∈ ℤ; x > 2

one can read is as "J" equals "x", where "x" is an integer and is greater than 2.

well, an integer greater than 2 is, 3, 4, 5, 6, 100000000 and so on, pick any you wish above 2.