Nonexistence of iterated countable meets and joins in the nowhere centered quotient
Nonexistence of iterated countable meets and joins in the nowhere centered quotient
Let be the indicated iterated operation on a family of sets , where . Iterated-operation conjecture. For every integer with , there exists such a family for which does not exist in . This would identify a limitation on iterating countable joins and meets in the nowhere centered quotient; the supplied text does not state whether the claim is known or open.
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Primary source
Mario Jardón Santos, “Small infinite partitions and other features of the Nowhere Centered ideal”, arXiv:2203.00234 (2022).
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