Condition is NOT true

[Philip <pschmi02@xxxxxxxxxxx>]

When writing Metastock formula syntax, is there a way to specify that a
condition should NOT obtain?

Examples:

EMA(21) is rising, but the ADX(13) ISN'T.

Such an such an oscillator is above (say) 80, but this other set of
circumstances (expanding on it now) is NOT the case.

Or must I spell out which conditions I want the second element/elements to
fulfill in terms of "true?"

Philip