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A counterexample to Enochs' conjecture under $V=L$

Zhang, Chencheng
arXiv (All) · Papers
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03e55logicrings-and-algebras
Assuming the nonexistence of uncountable measurable cardinals, we construct an $\mathbb F_2$-algebra and a covering class of right modules which is not closed under colimits of countable chains. This gives a counterexample to Enochs' conjecture under $V=L$.
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