Volume 36 • Number 2 • 2013   • Modular and Distributive Congruence Lattices of Monounary Algebras C. Ratanaprasert and S. Thiranantanakorn Abstract. In this paper, we describe all modular and distributive lattices which are isomorphic to the congruence lattices of monounary algebras. 2010 Mathematics Subject Classification: 08A60 Full text: PDF