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
$$A \cup B =$$
{ define, deliver, develop, discover, grammar, logic, rhetoric }
Symmetric Difference
$$A \ominus B =$$
{ define, deliver, develop, discover, grammar, logic, rhetoric }
Difference
$$A - B =$$
{ define, deliver, develop, discover }
Difference
$$B - A =$$
{ grammar, logic, rhetoric }
Cartesian Product
$$A \times B =$$
{ (define, grammar),
(define, logic),
(define, rhetoric),
(deliver, grammar),
(deliver, logic),
(deliver, rhetoric),
(develop, grammar),
(develop, logic),
(develop, rhetoric),
(discover, grammar),
(discover, logic),
(discover, rhetoric) }