1. On varieties of pseudo $MV$-algebras Creator: Jakubík, Jén Format: bez média and svazek Type: model:article and TEXT Subject: pseudo $MV$-algebras, lattice ordered group, unital lattice ordered group, and variety Language: English Description: In this paper we investigate the relation between the lattice of varieties of pseudo $MV$-algebras and the lattice of varieties of lattice ordered groups. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public