Let A and B be sets. Below are listed several statements involving set notation. For each case, write a statement in words that says what is written in symbols.
a. A U B
b. A ∩ B
c. A ⊆ B
d. a ∈ A
e. A ∩ B = Ø
a. A U B
b. A ∩ B
c. A ⊆ B
d. a ∈ A
e. A ∩ B = Ø