Union
$$A \cup B =$$
{ be, do, equality, exist, feel, fraternity, liberty, love, say, see, think }
Symmetric Difference
$$A \ominus B =$$
{ be, do, equality, exist, feel, fraternity, liberty, love, say, see, think }
Difference
$$B - A =$$
{ be, do, exist, feel, love, say, see, think }
Cartesian Product
$$A \times B =$$
{ (equality, be),
(equality, do),
(equality, exist),
(equality, feel),
(equality, love),
(equality, say),
(equality, see),
(equality, think),
(fraternity, be),
(fraternity, do),
(fraternity, exist),
(fraternity, feel),
(fraternity, love),
(fraternity, say),
(fraternity, see),
(fraternity, think),
(liberty, be),
(liberty, do),
(liberty, exist),
(liberty, feel),
(liberty, love),
(liberty, say),
(liberty, see),
(liberty, think) }