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Communicated by D. B. McAlister
The original manuscript for this article was lost in the mail in early 1981 after it had been revised by the author in accordance with the referee’s suggestions.
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Premchand, S. Independence of axioms for biordered sets. Semigroup Forum 28, 249–263 (1984). https://doi.org/10.1007/BF02572487
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DOI: https://doi.org/10.1007/BF02572487