scala - reversing the boolean return type from a function -


i have 2 functions accept function type: int => boolean function type

def myfunction1(f1: int => boolean) ... def myfunction2(f2: int => boolean) ...

i want call function2 function1 instead of invoking f1, want invoke inverse of f1. if f1 

(x: int) => x > 4

at runtime, i.e. return true numbers greater four. want reverse returns false if numbers greater four. possible inverse f1 before calling myfunction2?

you this:

def myfunction1(f1: int => boolean) =  myfunction2(!f1(_))

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