GCSE Maths (Edexcel)
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Set Notation
- A set is a collection of numbers or items
- Curly brackets are used to show a rule or collection of values that describes a set
- Sets can be represented by algebraic symbols for convenience
- Sets can be formed based on various rules or criteria
- Sets can also be formed with random values that don't follow a rule
- The notation "���" means "is a member of a set"
- A universal set is the set of all values being considered in a certain context
- Subsets can be formed within a universal set
- The complement of a set is the set of all values from the universal set that are not in the original set
- The notation "A'" represents the complement of set A
- The union of two sets is the set of values that belong to either set
- The notation "A ��� B" represents the union of sets A and B
- The intersection of two sets is the set of values that belong to both sets
- The notation "A ��� B" represents the intersection of sets A and B
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