A. Tell whether the following statements are well-defined or not.
1. A collection of all large numbers.
2. A collection of all multiples of 5.
3. A collection of front liners in Taguig City and Pateros.
4. A collection of honest students in your class.
5. A collection of all factors of 18.
B. Identify the following. Write if each pair of sets is equal or
equivalent sets.
6. A = {t, e, n}
B = {n, e, t}
7. C = {m, a, t, h}
D = {g, e, o, m}
8. E = { 1, 2, 3, 4}
F = { 5, 10, 15, 20 }
9. N = {r, e, a, d}
E = { d, e, a, r}
10.X = {b, I, u
Y = (1, 4, 3