# A-B' and A'-B Venn Diagrams?

• October 10th 2007, 01:32 PM
Edbaseball17
A-B' and A'-B Venn Diagrams?
What do these look like?
• October 10th 2007, 02:33 PM
Plato
$\begin{array}{l}
A\backslash B' = A \cap B \\
A'\backslash B = A' \cap B' \\
\end{array}
$

Can you use these?
• October 10th 2007, 02:42 PM
Edbaseball17
Quote:

Originally Posted by Plato
$\begin{array}{l}
A\backslash B' = A \cap B \\
A'\backslash B = A' \cap B' \\
\end{array}
$

Can you use these?

How does A minus Complement of B = A Intersection B?

I can't see it in my mind how that works.
• October 10th 2007, 03:07 PM
Plato
Set-minus works this way: $K\backslash L = K \cap L'$.

So $K\backslash L' = K \cap \left( {L'} \right)^\prime = K \cap L$.
• October 10th 2007, 03:13 PM
Edbaseball17
hey thanks a lot, now i get it.