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
$$A \cup B =$$
{ logopoeia, melopoeia, memorization, note taking, phanopoeia, reading, testing, time management }
Symmetric Difference
$$A \ominus B =$$
{ logopoeia, melopoeia, memorization, note taking, phanopoeia, reading, testing, time management }
Difference
$$A - B =$$
{ logopoeia, melopoeia, phanopoeia }
Difference
$$B - A =$$
{ memorization, note taking, reading, testing, time management }
Cartesian Product
$$A \times B =$$
{ (logopoeia, memorization),
(logopoeia, note taking),
(logopoeia, reading),
(logopoeia, testing),
(logopoeia, time management),
(melopoeia, memorization),
(melopoeia, note taking),
(melopoeia, reading),
(melopoeia, testing),
(melopoeia, time management),
(phanopoeia, memorization),
(phanopoeia, note taking),
(phanopoeia, reading),
(phanopoeia, testing),
(phanopoeia, time management) }
Ezra Pound's Three Kinds of Poetry