negation

[catdancing]

Well, I won't do it for you, but I'll tell you how to do it.

To negate an expression, reverse the operators. So, for instance, convert all ANDs to ORs and all ORs to ANDs. Also, convert all = to <>, all <> to =, all > to <=, all < to >=, etc.

By way of example, if the expression were:

(a <> b) OR (b <= c)

The negation would be:

(a = b) AND (b > c)

Thanks so much that is very helpful.