  The Lemma on the Logarithmic Derivative of a meromorphic function has many
applications in the study of meromorphic functions and ordinary differential
equations. In this paper, a difference analogue of the Logarithmic Derivative
Lemma is presented and then applied to prove a number of results on meromorphic
solutions of complex difference equations. These results include a difference
analogue of the Clunie Lemma, as well as other results on the value
distribution of solutions.
