# [Tex/LaTex] Subscript without text in math mode

math-modesubscripts

I want e.g. \bigtriangleup as a subscript in math mode, but I do not want it as the subscript of any preceding symbol as | as in |_{\bigtriangleup}. I tried with _{\bigtriangleup} which does not work. Does anyone know a solution?

You may also try with ~_{\bigtriangleup} or with \phantom{text}_{\bigtriangleup}. In the second case the width of text determines how much blank space will be left before the subscript.