A set of polygons in an Euler diagram This set equals the one above since they have the same elements. In mathematics, a set is a collection of different things [1][2][3][4]; the things are called … Sets are defined as a collection of distinct elements. The elements of a set share a common characteristic among them. Learn about sets definition, representation, types, symbols, formulas, and … Jul 19, 2024 · What is a set in maths. Learn its theory, types of notations with symbols, Venn diagrams and examples. Forget everything you know about numbers. In fact, forget you even know what a number is. This is where mathematics starts. Set in math is a collection of well-defined objects. Learn about different forms and types of sets to solve related problems using Venn diagrams and formulas. Cantor introduced the concept of sets. He had defined a set as a collection of definite and distinguishable objects selected by the means of certain rules or description. Usually, sets are represented in curly braces {}, for example, A = {1,2,3,4} is a set.