1.1.1
Tom_Tiahrt 23 Jan 2009 14:03
Determine the elements in $(A \cap C) \ \times \ (B-C)$
if $A = \{ a, b, c \}, B = \{ b, d \},$ and $C = \{ a, e, b, c \}.$
\begin{eqnarray} (A \cap C) &= \{ a, b, c\} \\ (B - C) &= \{ d \} \\ (A \cap C) \ \times \ (B-C) &= \{ (a,d), (b,d), (c,d) \} \end{eqnarray}