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
$$A \cup B =$$
{ ego, feeling, id, intuition, sensation, superego, thinking }
Symmetric Difference
$$A \ominus B =$$
{ ego, feeling, id, intuition, sensation, superego, thinking }
Difference
$$A - B =$$
{ ego, id, superego }
Difference
$$B - A =$$
{ feeling, intuition, sensation, thinking }
Cartesian Product
$$A \times B =$$
{ (ego, feeling),
(ego, intuition),
(ego, sensation),
(ego, thinking),
(id, feeling),
(id, intuition),
(id, sensation),
(id, thinking),
(superego, feeling),
(superego, intuition),
(superego, sensation),
(superego, thinking) }