ABSTRACT
A×B: The Cartesian product of sets A and B, with elements (a,b) where a ∈ A and b ∈ B. This is really defined properly in Chapter 2.
|A|: The number of elements in a set A.
disjoint sets: Sets with no elements in common.
A×B: The Cartesian product of sets A and B, with elements (a,b) where a ∈ A and b ∈ B. This is really defined properly in Chapter 2.
|A|: The number of elements in a set A.
disjoint sets: Sets with no elements in common.