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math.LO2022
Small infinite partitions and other features of the Nowhere Centered ideal
Mario Jardón Santos
The \textit{nowhere dense ideal} is introduced. It is a coanalytic ideal of whose defining characteristic is that the sets of the form , where…
math.LO2022
A note on infinite partitions of free products of Boolean algebras
Mario Jardón Santos
If is an infinite Boolean algebra the cardinal invariant is defined as the smallest size of an infinite partition of . The cardinal $\mathfrak{a}(A\oplus B…