Documentation Publicon Reference Special Characters
NotDoubleVerticalBar
\[NotDoubleVerticalBar]
• Alias: !||. • Infix operator. • x y is by default interpreted as NotDoubleVerticalBar[x, y]. • Used in geometry to mean "not parallel to".• See also: \[DoubleVerticalBar] , \[NotVerticalBar] , \[UpTee] .
\[NotDoubleVerticalBar]
!||
y is by default interpreted as NotDoubleVerticalBar[x, y]. 