Union
$$A \cup B =$$
{ accomodator, angry, assimilator, bored, converger, diverger, happy, peaceful }
Symmetric Difference
$$A \ominus B =$$
{ accomodator, angry, assimilator, bored, converger, diverger, happy, peaceful }
Difference
$$A - B =$$
{ angry, bored, happy, peaceful }
Difference
$$B - A =$$
{ accomodator, assimilator, converger, diverger }
Cartesian Product
$$A \times B =$$
{ (angry, accomodator),
(angry, assimilator),
(angry, converger),
(angry, diverger),
(bored, accomodator),
(bored, assimilator),
(bored, converger),
(bored, diverger),
(happy, accomodator),
(happy, assimilator),
(happy, converger),
(happy, diverger),
(peaceful, accomodator),
(peaceful, assimilator),
(peaceful, converger),
(peaceful, diverger) }
Contrasting and categorization of emotions