:: Ord a => [a] -> [a] -package:hspec -package:Cabal -package:witherable -is:exact -package:integration -package:lens -is:exact -package:mono-traversable package:errors is:exact

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