Chapter 6.1, Problem 25E

To determine

(a)

To show:

The relationship $A\subset B$ and $B\subset C$ using Venn diagram.

To determine

(b)

To show:

The relationship $A\subset U$ and $B\subset U$ where $AandB$ have no elements in common, using Venn diagram.

To determine

(c)

To show:

The relationship sets $A$, $B$, and $C$ are equal using Venn diagram.