latex x element of symbol
documentclass{article}
usepackage{graphicx}
usepackage{amsmath}
newcommandInn{%
mathrel{ooalign{$subset$crhfilscalebox{0.8}[1]{$=$}hfilcr}}%
}
begin{document}
[
Ain B % one stroke in middle
]
[
AInn B % two strokes in middle
]
end{document}