Abstract
We examine basic notions of special subsets and orders in the context of semigroups with apartness and prove constructive analogues of some classical theorems relating such subsets and orders.
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Acknowledgments
The authors would like to thank professors D. S. Bridges, F. Richman and the referee for the comments and suggestions that they have made during the course of the work on this manuscript. They have been most helpful and provided a valuable insight into various issues. The first author is supported by the Science and Technological Development of the Republic of Serbia, grant 174018. The second author is supported by the Science and Technological Development of the Republic of Serbia, Grant 174026. The third author is supported by the Ministry of Science of the Republic of Srpska, Banja Luka, Bosnia and Herzegovina.
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Communicated by Mikhail Volkov.
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Crvenković, S., Mitrović, M. & Romano, D.A. Basic notions of (constructive) semigroups with apartness. Semigroup Forum 92, 659–674 (2016). https://doi.org/10.1007/s00233-016-9776-y
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DOI: https://doi.org/10.1007/s00233-016-9776-y