1: Sets Last updated Save as PDF Page ID 129477 OpenStax OpenStax 1.0: Introduction 1.1: Basic Set Concepts 1.1.0: Exercises 1.2: Subsets 1.2.0: Exercises 1.3: Understanding Venn Diagrams 1.3.0: Exercises 1.4: Set Operations with Two Sets 1.4.0: Exercises 1.5: Set Operations with Three Sets 1.5.0: Exercises 1.6: Chapter Summary 1.6.0: Key Terms 1.6.1: Key Concepts 1.6.2: Videos 1.6.3: Formula Review 1.6.4: Projects 1.6.5: Chapter Review 1.6.6: Chapter Test Thumbnail: Inclusion/exclusion for three sets. (CC BY-SA 3.0; unknown via Wikipedia ).