Equality
$$A \neq B$$
A is not equal to B
Subset
$$A \not\subseteq B$$
A is not a subset of or equal to B
Superset
$$A \not\supseteq B$$
A is not a superset of or equal to B
Intersection
$$A \cap B =$$
{ }
Union
$$A \cup B =$$
{ Anthropology, Economics, Geography, Political science, Psychology, Sociology, yang, yin }
Symmetric Difference
$$A \ominus B =$$
{ Anthropology, Economics, Geography, Political science, Psychology, Sociology, yang, yin }
Difference
$$A - B =$$
{ yang, yin }
Difference
$$B - A =$$
{ Anthropology, Economics, Geography, Political science, Psychology, Sociology }
Cartesian Product
$$A \times B =$$
{ (yang, Anthropology),
(yang, Economics),
(yang, Geography),
(yang, Political science),
(yang, Psychology),
(yang, Sociology),
(yin, Anthropology),
(yin, Economics),
(yin, Geography),
(yin, Political science),
(yin, Psychology),
(yin, Sociology) }
Yin and yang