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  1. No. 33452 · q-20261013-advance-20261025-r05-measurable-function-0027

    Question 33452: The Preimage of a Union Equals the Union of Preimages

    Second-context math/bilingual review

    Question: candidate; English: AI candidate; this page adds no mathematical or formal proof.

    MKO: Measurable function Questionsqf-mod25-measdeep-preimage-union-lawbatch-20261013-advance-20261025-r05-measurable-function-foundations
    Open numbered derivation → Markdown JSON Original batch