The discussion centers on the correct representation of a mathematical symbol indicating "does not divide." The user @andrewkirk clarifies that the symbol should feature a diagonal stroke through a vertical stroke, rather than positioned next to it. This distinction is emphasized in relation to a previous post where the symbol was misrepresented. The conversation highlights that while \not{|} can be used, the absence of braces in the original post led to confusion. Additionally, the alternative symbol \cancel{|} is mentioned as a valid option for representing the same concept.
