This paper is devoted to study the notion of topological residuated lattices and to investigate their
properties. We show that the Boolean center of a topological residuated lattice is a topological Boolean
algebra with the induced topology. Furthermore, the conditions under which the closure of a subalgebra,
a filter or a normal filter on a topological residuated lattice is a subalgebra, a filter or a normal filter,
respectively, are established.