# Introduction to Sets

Learn about tabular notations, set-builder notations, the cardinality of a set, the significance of the empty set, and the application of various useful sets.

The idea of a set is to represent, refer to, and use a collection of objects by treating the set as a single entity, which means a single mathematical object. The objects in such a collection are said to be its **elements** or **members**. If a collection of distinct elements is **set**.

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