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Types of Sets: Finite and Infinite
Sets can be categorized based on the number of elements they contain. A finite set has a limited number of
elements, while an infinite set has an unlimited number of elements.
Finite Set Example: B = {a, b, c} is a finite set because it has exactly 3 elements.
Infinite Set Example: The set of natural numbers N = {1, 2, 3, 4, ...} is an infinite set.
Finite Sets Infinite Sets
Limited number of elements Unlimited number of elements
Can be counted • Cannot be counted •
Has a definite size • No definite size •
Example: {1, 2, 3, 4, 5} • Example: {1, 2, 3, ...} •
