A set is the mathematical model for a collection of different things; a set contains elements or members, which can be mathematical objects of any kind: numbers, symbols, points in space, lines, other geometrical shapes, variables, or even other #sets. The #set with no element is the empty set; a set with a single element is a singleton. A set may have a finite number of elements or be an infinite set. Two sets are equal if they have precisely the same elements. Sets are ubiquitous in modern mathematics.

⭐️ Table of Contents ⭐️
⌨️ (0:00) What is sets
⌨️ 3:58) Sets union intersection
⌨️ (8:26) Set expression Venn diagram

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