Some remarks on sums of direct systems of algebras
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J. Płonka (1968)
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Reiterman, Jan
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James S. Johnson (1969)
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Jerzy Płonka (1969)
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Miroslav Novotný (1990)
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Yuri Movsisyan, Vahagn Aslanyan (2014)
Open Mathematics
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A De Morgan quasilattice is an algebra satisfying hyperidentities of the variety of De Morgan algebras (lattices). In this paper we give a functional representation of the free n-generated De Morgan quasilattice with two binary and one unary operations. Namely, we define the concept of super-De Morgan function and prove that the free De Morgan quasilattice with two binary and one unary operations on nfree generators is isomorphic to the De Morgan quasilattice of super-De Morgan functions...