Title: 𝑄-sets do not necessarily have strong measure zero
Abstract: The purpose of this paper is to give a negative answer to the following question (see Miller [<bold>4</bold>]): Do all <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper Q"> <mml:semantics> <mml:mi>Q</mml:mi> <mml:annotation encoding="application/x-tex">Q</mml:annotation> </mml:semantics> </mml:math> </inline-formula>-sets have strong measure zero?