Union
$$A \cup B =$$
{ Assess, Execute, Plan, Re-evaluate, Stop, archery, calligraphy, chariotry, mathematics, music, rites }
Symmetric Difference
$$A \ominus B =$$
{ Assess, Execute, Plan, Re-evaluate, Stop, archery, calligraphy, chariotry, mathematics, music, rites }
Cartesian Product
$$A \times B =$$
{ (archery, Assess),
(archery, Execute),
(archery, Plan),
(archery, Re-evaluate),
(archery, Stop),
(calligraphy, Assess),
(calligraphy, Execute),
(calligraphy, Plan),
(calligraphy, Re-evaluate),
(calligraphy, Stop),
(chariotry, Assess),
(chariotry, Execute),
(chariotry, Plan),
(chariotry, Re-evaluate),
(chariotry, Stop),
(mathematics, Assess),
(mathematics, Execute),
(mathematics, Plan),
(mathematics, Re-evaluate),
(mathematics, Stop),
(music, Assess),
(music, Execute),
(music, Plan),
(music, Re-evaluate),
(music, Stop),
(rites, Assess),
(rites, Execute),
(rites, Plan),
(rites, Re-evaluate),
(rites, Stop) }
Six Arts