Is this truth table correct?

Thanks

Edit: should be $\displaystyle x \in A $, $\displaystyle x \in B $ etc...

For the last two I thought of them like this: If $\displaystyle x \in A, x \in B $ then $\displaystyle x \in A \cup B $ is true. However if $\displaystyle x \in C $ then $\displaystyle x \in (A \cup B) - C $ is false. So we require that $\displaystyle x \not \in C $ for the statement to be true. So the $\displaystyle '-' $ operation is sort of like the $\displaystyle \cap $ operation in terms of truths.

Crap...just realized I screwed up. For all $\displaystyle x \in C $ then the second to last statement is false. For all $\displaystyle x \not \in C $ then that statement is true.

The last one is basically a union of two sets. So to be false, $\displaystyle x \not \in A-B $ and $\displaystyle x \not \in C $