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Hechler reals

  • Grzegorz Łabędzki (a1) and Miroslav Repický (a2)


We define a σ-ideal on the set of functions ωω with the property that a real xωω is a Hechler real over V if and only if x omits all Borel sets in . In fact we define a topology on ωω related to Hechler forcing such that is the family of first category sets in . We study cardinal invariants of the ideal .



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Hechler reals

  • Grzegorz Łabędzki (a1) and Miroslav Repický (a2)


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