Union
$$A \cup B =$$
{ anal, anger, avarice, envy, genital, gluttony, latency, lust, oral, phallic, pride, sadness }
Symmetric Difference
$$A \ominus B =$$
{ anal, anger, avarice, envy, genital, gluttony, latency, lust, oral, phallic, pride, sadness }
Cartesian Product
$$A \times B =$$
{ (anger, anal),
(anger, genital),
(anger, latency),
(anger, oral),
(anger, phallic),
(avarice, anal),
(avarice, genital),
(avarice, latency),
(avarice, oral),
(avarice, phallic),
(envy, anal),
(envy, genital),
(envy, latency),
(envy, oral),
(envy, phallic),
(gluttony, anal),
(gluttony, genital),
(gluttony, latency),
(gluttony, oral),
(gluttony, phallic),
(lust, anal),
(lust, genital),
(lust, latency),
(lust, oral),
(lust, phallic),
(pride, anal),
(pride, genital),
(pride, latency),
(pride, oral),
(pride, phallic),
(sadness, anal),
(sadness, genital),
(sadness, latency),
(sadness, oral),
(sadness, phallic) }
Psychosexual development