2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/94721It is shown that ''Theorem 1'' of the article ''Copenhagen Interpretation of Quantum Mechanics Is Incorrect'' by G.-L. Li and V.O.K. Li (see quant-ph/0509089) is false. Therefore the assertion expressed in the title of that article is untenable.1/2 page, no figuresQuantum Physicstext