What is a null set in mathematics? – TechTarget Definition
21-110: Sets
Sets Definition: A set is an unordered collection of objects, called elements or members of the set. A set is said to contain its elements. We write a. - ppt download
Definition and Representation A set is a well-defined collection of objects; The objects are called elements or members of the set; A set can be represented. - ppt download
Universal Set (video lessons, examples, solutions)
Elements of a Set | Definition & Examples - Video & Lesson Transcript | Study.com