Union
$$A \cup B =$$
{ angry, bored, familial, friendly, happy, peaceful, playful, practical, self-loving, sexual, universal }
Symmetric Difference
$$A \ominus B =$$
{ angry, bored, familial, friendly, happy, peaceful, playful, practical, self-loving, sexual, universal }
Difference
$$B - A =$$
{ familial, friendly, playful, practical, self-loving, sexual, universal }
Cartesian Product
$$A \times B =$$
{ (angry, familial),
(angry, friendly),
(angry, playful),
(angry, practical),
(angry, self-loving),
(angry, sexual),
(angry, universal),
(bored, familial),
(bored, friendly),
(bored, playful),
(bored, practical),
(bored, self-loving),
(bored, sexual),
(bored, universal),
(happy, familial),
(happy, friendly),
(happy, playful),
(happy, practical),
(happy, self-loving),
(happy, sexual),
(happy, universal),
(peaceful, familial),
(peaceful, friendly),
(peaceful, playful),
(peaceful, practical),
(peaceful, self-loving),
(peaceful, sexual),
(peaceful, universal) }
Contrasting and categorization of emotions