:: Ord a => [a] -> [a] -package:witherable -package:extra -package:ghc -is:exact -is:exact -package:integration -package:imports -is:exact is:exact -package:Cabal package:errors

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