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
$$A \cup B =$$
{ Inheritance, cell division, interphase, resting, selection, time, variation }
Symmetric Difference
$$A \ominus B =$$
{ Inheritance, cell division, interphase, resting, selection, time, variation }
Difference
$$A - B =$$
{ Inheritance, selection, time, variation }
Difference
$$B - A =$$
{ cell division, interphase, resting }
Cartesian Product
$$A \times B =$$
{ (Inheritance, cell division),
(Inheritance, interphase),
(Inheritance, resting),
(selection, cell division),
(selection, interphase),
(selection, resting),
(time, cell division),
(time, interphase),
(time, resting),
(variation, cell division),
(variation, interphase),
(variation, resting) }
Cell cycle