Boolean algebra

PowerShell Help
2

JCG,
Welcome to the forum. :wave:t3:

When you post code, sample data, console output or error messages please format it as code using the preformatted text button ( </> ). Simply place your cursor on an empty line, click the button and paste your code.

Thanks in advance

Guide to Posting Code - Redux <---- Click :point_up_2:t4: :wink:

( !! Sometimes the preformatted text button hides behind the settings gear symbol. :wink: )

They are not.

You misplaced the parenthesis in your second function.

function evaluate_2 {
    if (-not(-not ($tst1 -eq 'a') -and -not ($tst1 -eq 'b'))) {
        'success_2';
    }
}