inject 5 [1,2,3] == [[5,1,2,3],[1,5,2,3],[1,2,5,3],[1,2,3,5]]
inject 5 [] == [[5]]

permAehnlich "Blumentopf" "topfBlumen" == True
permAehnlich "Blumentopf" "Topfblumen" == False

ezAehnlich "Topfblume" "Topfblumen" == True
ezAehnlich "Ruhe" "Truhe" == False

vna ["John Smith","Judy Hall","John Doug"] [[2,1,3],[3,2,1],[3,1,2],[1,2,3],[2,3,1],[1,5]] == (["Judy Hall","John Doug"],[[1,2],[2,1],[2,1],[1,2],[1,2]])
vna ["John Smith","Judy Hall","John Doug"] [[1,2,3],[3,2,1],[3,1,2],[1,2,3],[2,3,1],[1,5]] == (["John Smith","John Doug"],[[1,2],[2,1],[2,1],[1,2],[2,1]])