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 SM ISO690:2012URSU, Vasile. On a Product of Classes of Algebraic Systems. In: Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, 2010, nr. 1(62), pp. 106-120. ISSN 1024-7696. |
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| Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica | ||||||
| Numărul 1(62) / 2010 / ISSN 1024-7696 /ISSNe 2587-4322 | ||||||
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| Pag. 106-120 | ||||||
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This paper defines a product of classes of algebraic systems and proves that it is a universal class, a quasi-variety or variety if these classes are universal classes, quasi-varieties or varieties, respectively. |
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| Cuvinte-cheie Algebraic system, variety, congruence, class, quasi-variety |
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