#@title Interval differenceInterval difference

#@title Interval difference

def interval$\_$sub$($self$,$ other$)$:

$""$ "Subtracts from this interval the interval other, returning a possibly

empty list of intervals."""

Interval. $=$ interval$\_$sub

$[237]$ # Tests $10$ points.

assert Interval$(4,6)-$ Interval $(5,8)==[\frac{?}{\text{I}\text{n}\text{t}}$ erval$(4,5)]$

assert $,$ Interval $(5,10)$

def interval$\_$sub$($self$,$ other$)$:

$"""$Subtracts from this interval the interval other, returning a possibly

empty list of intervals.""" $($NO IMPORTS$)$