3.3 Operations on Sets (Part 1)

3.3a Intersection of Sets
 
1. The intersection of set P and set Q, denoted by P Q  is the set consisting of all elements common to set P and set Q.

2.
The intersection of set P, set Q and set R, denoted by P Q R  is 
the set consisting of all elements common to set P, set Q and set R.

3.
Represent the intersection of sets using Venn diagrams.


(a) P ∩ Q





(b) Q P , then P Q = Q



(c) P Q = , There is no intersection between set P and set Q .




(d) P ∩ Q ∩ R