Lords of the iteration
by Roslanowski and Shelah. [RoSh:888]
Set Theory and Its Applications, 2011
We introduce several properties of forcing notions which imply
that their lambda --support iterations are lambda --proper.
methods and techniques refine those studied in [RoSh:655],
[RoSh:860] and [RoSh:890], covering some new forcing
notions (though the exact relation of the new properties to
ones remains undecided).
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