2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/68322In the paper we consider the notion of hyper-quasi-identities and hyperquasivarieties as a generalization of the concept of quasi-identity and quasivariety invented by A. I. Mal'cev.8 pagesLogic08C15; 08C99text