#2A
The idea of a set
#2B
Set language and notation
Questions may be set involving these ideas in the abstract or derived from practical situations
#2C
Union and intersection of sets
Understand sets defined in algebraic terms
#2D
Number of elements in a set
Use the notation \(\text{n}(A)\)
#2E
Complementary sets
Use the notation \(A'\)
#2F
Subsets
#2G
Universal set, null set
#2H
Venn diagrams and their use in simple logical problems
#2I
Use of symbols to represent sets