Abstract
It is shown that in a well known characterization of radical classes, closure under unions of chains of ideals can be replaced by closure under unions of continuous well-ordered chains of ideals. Some consequences are discussed.
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Gardner, B.J. Ideal chains in radical theory. Acta Math Hung 119, 181–187 (2008). https://doi.org/10.1007/s10474-007-7015-4
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DOI: https://doi.org/10.1007/s10474-007-7015-4