Generalized "Boolean" theory of universal algebras. Part I.
Alfred L. Foster (1953)
Mathematische Zeitschrift
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Alfred L. Foster (1953)
Mathematische Zeitschrift
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WILLIAM HANF (1957)
Mathematica Scandinavica
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Arthur H. COPELAND (1950)
Mathematische Zeitschrift
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Alfred L. Foster (1953/54)
Mathematische Zeitschrift
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I. Sussman (1958)
Mathematische Annalen
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E.M. Левинсон ([unknown])
Matematiceskij sbornik
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Kiiti Morita (1958)
Mathematische Zeitschrift
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Ivan Chajda, Miroslav Kolařík (2008)
Discussiones Mathematicae - General Algebra and Applications
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We introduce the so-called DN-algebra whose axiomatic system is a common axiomatization of directoids with an antitone involution and the so-called D-quasiring. It generalizes the concept of Newman algebras (introduced by H. Dobbertin) for a common axiomatization of Boolean algebras and Boolean rings.
R.S. Pierce, D.J. Christensen (1959)
Mathematica Scandinavica
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E. Ellentuck (1977)
Fundamenta Mathematicae
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Hua-Chieh Li (2005)
Acta Arithmetica
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N.V. SUBRAHMANYAM (1960)
Mathematische Annalen
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Alfred L. Foster (1959)
Mathematische Zeitschrift
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Ivan Chajda, Günther Eigenthaler (2009)
Discussiones Mathematicae - General Algebra and Applications
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De Morgan quasirings are connected to De Morgan algebras in the same way as Boolean rings are connected to Boolean algebras. The aim of the paper is to establish a common axiom system for both De Morgan quasirings and De Morgan algebras and to show how an interval of a De Morgan algebra (or De Morgan quasiring) can be viewed as a De Morgan algebra (or De Morgan quasiring, respectively).