This ambiguity leads us into all sorts of problems if we are not careful.[5.10] The best way of avoiding these problems appears to be to adopt the rule that the notation wz is used only when a particular choice of log w has been specified. (In the special case of ez, the tacit convention is always to take the particular choice log e = 1. Then the standard notation ez is consistent with our more general wz.) Once this choice of log w is specified, then wz is unambiguously defined for all values of z.
