the following: 1) (A complement U B) (entire thing complemented) (intersect A) = A-B 2) (A U B) - A = B - A
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Originally Posted by Brjakewa the following: 1) (A complement U B) (entire thing complemented) (intersect A) = A-B $\displaystyle \begin{gathered} \overline {\left( {\overline A \cup B} \right)} \cap A \hfill \\ \left( {A \cap \overline B } \right) \cap A \hfill \\ \left( {A \cap \overline B } \right) \hfill \\ A\backslash B \hfill \\ \end{gathered} $
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