Function: minus(numbers("per") if log(numbers("per"), numbers("yxx")) > numbers("yxx") if numbers("per") if numbers("yxx") > log(numbers("per"), numbers("yxx")) else numbers('yxy') > numbers("per") else log(numbers("per"), numbers("yxx")) else log(numbers("per"), numbers("yxx")) if numbers('yxy') > numbers("yxx") else numbers("per"), numbers("yxx") if log(numbers("per"), numbers("yxx")) > numbers('yxy') if numbers("per") > numbers("yxx") else log(numbers("per"), numbers("yxx")) else numbers("per")) if numbers('yxy') if numbers("yxx") > numbers("per") else log(numbers("per"), numbers("yxx")) if numbers("per") > log(numbers("per"), numbers("yxx")) if numbers("yxx") > log(numbers("per"), numbers("yxx")) if numbers('yxy') > numbers("per") else numbers("yxx") else numbers("per") else log(numbers("per"), numbers("yxx")) > numbers("yxx") if log(numbers("per"), numbers("yxx")) > numbers("per") else numbers('yxy') if log(numbers("per"), numbers("yxx")) > numbers("per") else numbers("yxx") else numbers("yxx") if log(numbers("per"), numbers("yxx")) > numbers('yxy') else numbers("per")