👉 In mathematical notation, "rumbelow" is defined as a value that lies below another value. This can be used to describe an interval of values where one or more numbers are less than another number. For example: ``` x = 2 y = 4 rumbelow(x,y) = {y < x} ``` In this case, "rumbelow" is defined as the set of all values that lie below the value of "x". It means that