:: Ord a => [a] -> [a] -package:singletons -package:safe -package:basement -package:witherable -package:containers -package:imports -package:extra -is:exact -package:base package:errors is:exact

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