$F_σ$-ideals and $ω_1 ω^*_1$-gaps in the Boolean algebras Ρ(ω)/I.
نویسندگان
چکیده
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ژورنال
عنوان ژورنال: Fundamenta Mathematicae
سال: 1991
ISSN: 0016-2736,1730-6329
DOI: 10.4064/fm-138-2-103-111