Correct usage of $(AndIfNot)

[nawfal]

I tried in vain this:

code:
1	${IfNot} ${SectionIsSelected} ${Section2}

2	${AndIfNot} ${SelectionIsSelected} ${Section4}

3		Abort

4	${EndIf}

What I want is I want to exit a function if both section 2 and section 4 are unselected. But the above code doesnt compile saying there is an error in line 2 required 4 parameters, passed 3. How to do this logic correctly?