Bridge to Abstract Mathematics: Mathematical Proof and Structures

1.2 OPERATIONS ON SETS 25

Figure 1.3 Venn diagram representation

of intersection.

Some of the other four operations described earlier are pictured by the
shaded regions of Venn diagrams in Figure 1.4. You should draw Venn
diagrams to represent the sets B - A and A A B.
Venn diagrams become more complicated when used to represent sets
constructed from more than two given sets and/or involving more than one

I

(a) A U B

Figure 1.4 (a) Union, (b) complement,

and (c) digerence.