Set

• A set is an unordered collection of distinct objects, called elements or members of the set.
• Set - It use capital letters to identify a set like A, B, C, etc.
• A set can be finite or infinite.
• Use ellipses (…) to represent general pattern elements and infinite elements.
• A finite set refers to a set that contains a specific, or countable number of elements.
• An infinite set refers to a set that has an uncountable or infinitely large number of elements.
• Types of Infinite Set:

  • Countable Infinite
  • Uncountable Infinite
• Countable Infinite The set of natural numbers (N), integers (Z) and rational numbers (Q).
• Uncountable infinite The set of real numbers (R). The set of irrational numbers.