Electronic Journal of Differential Equations, Vol. 2000(2000), No. 34, pp. 1-20. Title: Non-degenerate implicit evolution inclusions Author: Kenneth Kuttler (Brigham Young Univ., Provo, Utah, USA) Abstract: We prove the existence of solutions for the implicit evolution inclusion $$ ( B(t) u( t) ) ' + A(t,u(t)) \ni f(t) $$ under conditions that are easy to verify on the set valued operator $A( t,\cdot)$ and that do not imply the operator is monotone. We also present an example where our existence theorem applies to a time dependent implicit inclusion. Submitted April 12, 2000. Published May 12, 2000. Math Subject Classifications: 34A60, 35R70, 35A05, 34A09, 35K20, 47H15. Key Words: Nonlinear evolution inclusion; pseudo-monotone mapping; implicit inclusions.