:: Ord a => [a] -> [a] -package:containers -package:basement -package:incipit-base -package:extra -package:imports -package:hedgehog -package:lens -package:ghc package:errors is:exact

A minimum that fails using mzero
A maximum that fails using mzero
tailSafe [] = []
tailSafe [1,3,4] = [3,4]