Cantor–Bernstein Theorem for Pseudo-BCK-Algebras |
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Authors: | Jan Kühr |
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Institution: | (1) Department of Algebra and Geometry, Palacky University Olomouc, Tomkova 40, 779 00 Olomouc, Czech Republic |
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Abstract: | We prove that if A and B are orthogonally σ-complete commutative pseudo-BCK-algebras such that A is isomorphic to a direct factor in B, and also B is isomorphic to a direct factor in A, then A and B are isomorphic. As a consequence we obtain previously known results for MV-algebras (by De Simone, Mundici and Navara), pseudo-MV-algebras
(by Jakubík) and lattice-ordered groups (again by Jakubík).
Supported by the Research and Development Council of the Czech Government, the research project MSM 6198959214. |
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Keywords: | Commutative pseudo-BCK-algebra Orthogonal σ -completeness Direct factor Cantor– Bernstein theorem |
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