I have always felt interval inclusion was overly verbose, at the expense of typing a few more characters, but also legibility. (lo <= x and x <= hi) I would

I have always felt interval inclusion was overly verbose, at the expense of typing a few more characters, but also legibility. (lo <= x and x <= hi) I would like to be able to combine these, for any number of weakly or strongly ordered values: (lo <= x <= hi) (a < b < c < d) Much easier to read. Especially with the suggested canonical low-to-high comparison order consistency.