Concerning an error in a well-known paper by M. Wajsberg /
880-01T︠S︡itkin, A. I.,author.
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
John and Ljubica Erickson collection.
Caption title.
Reprinted from Selecta mathematica Sovietica volume 7, number 1 (1988). text in English, originally published in Issledovanii︠a︡ po neklassicheskim logikam i teoriĭ mnozhestv, 1979.
Includes bibliographical references.