ORIF / IFOR ? Formula function?

[dwarnimont]

Is there a special formula or function that can serve as combination of IF and OR to review a range of cells? Example data numbers in A1:A10. If any of these numbers in A1:A10 are <20, then return 1,else return "".

Seems simple, but I dont have a solution. Thanks! dave

 

[VoG]

Perhaps

=IF(MIN(A1:A10)< -20,1,"")

 

[p45cal]

=if(countif(a1:a10,"<20"),1,"")