LatexCmds.nsube = LatexCmds.nsubeq =
LatexCmds.notsube = LatexCmds.notsubeq =
LatexCmds.nsubsete = LatexCmds.nsubseteq =
LatexCmds.notsubsete = LatexCmds.notsubseteq =
  bind(BinaryOperator,'\\not\\subseteq ','⊈');