Analytic trace ideals for proper forcing with continuous reading of names
Let be a -ideal on or , and let be the corresponding factor poset. Assume that is proper and has continuous reading of names. Trace-ideal conjecture. If the trace ideal is analytic, then it is Borel. This proposes a criterion for when the trace ideal associated with such a forcing is definable; the source states that no satisfactory criterion is otherwise known, and gives no resolution of the conjecture.
References
Primary source
Michael Hrusak and Jindrich Zapletal, “Forcing with quotients”, arXiv:math/0407182 (2004).
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