Lattice properties preserved under free products

We argue for a number of interesting properties of lattices that are preserved under free products, viz., (1) residual finiteness; (2) approximability by (finite) bounded (upper bounded, lower bounded) lattices; (3) boundedness (upper boundedness, lower boundedness). In memory of Victor of Gorbunov Translated fromAlgebra i Logika, Vol. 39, No. 1, pp. 66–73, January–February, 2000. Original article submitted March 10, 1999.