For the system shown in Figure P5.13, find the poles of

Basic Structures: Sets, Functions, Sequences, & Sums Introduction • Sets are one of the basic building blocks for the types of objects considered in discrete mathematics. • Important for counting. • Programming languages have set operations. • Set theory is an important branch of mathematics. • Many different systems of axioms have been used to develop set theory. • Here we are not concerned with a formal set of axioms for set theory. Instead, we will use what is called naïve set theory. Sets • A set is an unordered collection of objects. • the students in this class • the chairs in this room • The objects in a set are called the elements, or members of the set. A set is said to contain its elements. • The notation a ∈ A denotes that a is an