A classification of definable forcings on ω1

Volume 153 / 1997

Jindřich Zpletal Fundamenta Mathematicae 153 (1997), 141-144 DOI: 10.4064/fm-153-2-141-144


Under the assumption of the existence of sharps for reals all simply definable posets on $ω_1$ are classified up to forcing equivalence.


  • Jindřich Zpletal

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