Discrete Mathematics, Mathematics, Mathematics Education, Study Guide, Computer Science.
set of all points on a line. The number 0 corresponds to a middle point, called the origin. Set Builder Notation Given that R denotes the set of all real numbers, Z the set of all integers, and the set of all positive integers, describe the following set {x ∈ℝ|-2<x<5} Solution: x ∈ℝis the open