Abstract.
We prove that the covering number of the Marczewski ideal is equal to ℵ1 in the extension with the iteration of Hechler forcing.
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Yorioka, T. Forcings with the countable chain condition and the covering number of the Marczewski ideal. Arch. Math. Logic 42, 695–710 (2003). https://doi.org/10.1007/s00153-003-0174-2
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DOI: https://doi.org/10.1007/s00153-003-0174-2