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
$$A \cup B =$$
{ deliberative thinking, instinctive reactions, learned reactions, metaphysics, normative science, phenomenology, reflective thinking, self-conscious emotions, self-reflective thinking }
Symmetric Difference
$$A \ominus B =$$
{ deliberative thinking, instinctive reactions, learned reactions, metaphysics, normative science, phenomenology, reflective thinking, self-conscious emotions, self-reflective thinking }
Difference
$$A - B =$$
{ deliberative thinking, instinctive reactions, learned reactions, reflective thinking, self-conscious emotions, self-reflective thinking }
Difference
$$B - A =$$
{ metaphysics, normative science, phenomenology }
Cartesian Product
$$A \times B =$$
{ (deliberative thinking, metaphysics),
(deliberative thinking, normative science),
(deliberative thinking, phenomenology),
(instinctive reactions, metaphysics),
(instinctive reactions, normative science),
(instinctive reactions, phenomenology),
(learned reactions, metaphysics),
(learned reactions, normative science),
(learned reactions, phenomenology),
(reflective thinking, metaphysics),
(reflective thinking, normative science),
(reflective thinking, phenomenology),
(self-conscious emotions, metaphysics),
(self-conscious emotions, normative science),
(self-conscious emotions, phenomenology),
(self-reflective thinking, metaphysics),
(self-reflective thinking, normative science),
(self-reflective thinking, phenomenology) }
Charles Sanders Peirce