/ 2 \ / 2 \ \x - 3*x + 2/*(x - 3) < \x - 5*x + 6/*(x - 4)
(x - 3)*(x^2 - 3*x + 2) < (x - 4)*(x^2 - 5*x + 6)
(2, 3)
x in Interval.open(2, 3)
And(2 < x, x < 3)
(2 < x)∧(x < 3)