Union
$$A \cup B =$$
{ agape, eros, hearing, philios, sight, smell, storge, taste, touch }
Symmetric Difference
$$A \ominus B =$$
{ agape, eros, hearing, philios, sight, smell, storge, taste, touch }
Difference
$$A - B =$$
{ agape, eros, philios, storge }
Difference
$$B - A =$$
{ hearing, sight, smell, taste, touch }
Cartesian Product
$$A \times B =$$
{ (agape, hearing),
(agape, sight),
(agape, smell),
(agape, taste),
(agape, touch),
(eros, hearing),
(eros, sight),
(eros, smell),
(eros, taste),
(eros, touch),
(philios, hearing),
(philios, sight),
(philios, smell),
(philios, taste),
(philios, touch),
(storge, hearing),
(storge, sight),
(storge, smell),
(storge, taste),
(storge, touch) }
The Four Loves