Union
$$A \cup B =$$
{ anger, avarice, envy, gluttony, lust, memorization, note taking, pride, reading, sadness, testing, time management }
Symmetric Difference
$$A \ominus B =$$
{ anger, avarice, envy, gluttony, lust, memorization, note taking, pride, reading, sadness, testing, time management }
Cartesian Product
$$A \times B =$$
{ (anger, memorization),
(anger, note taking),
(anger, reading),
(anger, testing),
(anger, time management),
(avarice, memorization),
(avarice, note taking),
(avarice, reading),
(avarice, testing),
(avarice, time management),
(envy, memorization),
(envy, note taking),
(envy, reading),
(envy, testing),
(envy, time management),
(gluttony, memorization),
(gluttony, note taking),
(gluttony, reading),
(gluttony, testing),
(gluttony, time management),
(lust, memorization),
(lust, note taking),
(lust, reading),
(lust, testing),
(lust, time management),
(pride, memorization),
(pride, note taking),
(pride, reading),
(pride, testing),
(pride, time management),
(sadness, memorization),
(sadness, note taking),
(sadness, reading),
(sadness, testing),
(sadness, time management) }
Seven deadly sins