Write this set in set-builder notation. B = {-2, -1, 0, 1, 2, A A A}?

Question

I need to know how to write this in set-builder notation. The 3 A's are making it difficult and I do not know what they are for.

Answer 1

Here you are with my try:

B = { X / XeZ ∧ Xe[-2,2]} U {X / X is three "A"´s}

"e" represents the sign "belongs to"
"U" represents Union operation.
∧ - represents the connective "and"
Z = integer numbers set


Hope it helps!

Good luck!