[053] Prerequisites:[036]↺↻, [051]↺↻, [04Z]↺↻.(Proposed on 2022-12) (Solved on 2023-01-24) Let \(A\) be an infinite set. Show that the set of finite parts \({\mathcal P}_{\mathfrak f}(A)\) has the same cardinality as \(A\).
[054]↺↻