# Drawing dashed \subseteq symbol

I am trying to draw a dashed \subseteq symbol:

(in contrast to \not\subseteq or \varsubsetneq and \nsubseteq from the amsfonts package) but having no success. Is there any known way to do this? Also detexify was not able to find that symbol.

• Welcome to TeX.SX! Can you better explain what “dashed” means? Do you want something line \not\subseteq? – egreg Sep 29 '15 at 9:30
• Thanks for the reply. Actually no, I mean something along the (dashed) lines of \dashedleftarrow or \dashedarrow. – João Moura Sep 29 '15 at 9:44
• Can you point to an approximated graphic representation of what you mean? – egreg Sep 29 '15 at 9:48
• @JoãoMoura Why do you need this? – Martin Thoma Sep 30 '15 at 7:26

This one just paints white lines over the existing \subseteq and calls it \notsubseteq. As currently defined, it will not scale to other sizes. If that is a primary issue, perhaps the OP will let me know.

\documentclass{article}
\usepackage{stackengine,xcolor}
\stackMath
\def\notsubseteq{\mathrel{
\stackinset{l}{0pt}{c}{}{\wrule[2pt]{5pt}{.5pt}}{
\stackinset{l}{1.6pt}{c}{}{\wrule[-4pt]{.5pt}{10pt}}{
\stackinset{l}{3.35pt}{c}{}{\wrule[-4pt]{.5pt}{10pt}}{
\stackinset{l}{5.1pt}{c}{}{\wrule[-4pt]{.5pt}{10pt}}{
\subseteq}}}}
}}
\newcommand\wrule[3][0pt]{\textcolor{white}{\rule[#1]{#2}{#3}}}
\begin{document}
$A \subseteq B$
$A \notsubseteq B$
\end{document}


Here is a version that tries to cut the symbol at perpendicular intervals. I redefine the white to red in the last version to show the overlays.

\documentclass{article}
\usepackage{stackengine,xcolor,graphicx}
\stackMath
\def\notsubseteq{\mathrel{
\stackinset{l}{0pt}{c}{}{\wrule[2pt]{5pt}{.5pt}}{
\stackinset{l}{1.6pt}{c}{}{\wrule[-10pt]{.5pt}{3pt}}{
\stackinset{l}{0.5pt}{c}{1.5pt}{\rotatebox[origin=center]{45}{\wrule[2pt]{.5pt}{3pt}}}{
\stackinset{l}{0.5pt}{c}{}{\rotatebox[origin=center]{-45}{\wrule[-5pt]{.5pt}{3pt}}}{
\stackinset{l}{3.35pt}{c}{}{\wrule[-4pt]{.5pt}{10pt}}{
\stackinset{l}{5.1pt}{c}{}{\wrule[-4pt]{.5pt}{10pt}}{
\subseteq}}}}}}
}}
\newcommand\wrule[3][0pt]{\textcolor{white}{\rule[#1]{#2}{#3}}}
\begin{document}
$A \subseteq B$
$A \notsubseteq B$
\renewcommand\wrule[3][0pt]{\textcolor{red}{\rule[#1]{#2}{#3}}}%
$A \notsubseteq B$
\end{document}


• Works great! Thank you very much for the help. – João Moura Sep 29 '15 at 10:29