In TeXForm#
TeXForm parses this entry as a character leaf mapped to U+2ACC (SUPERSET OF ABOVE NOT EQUAL TO).
\supsetneqqSymbol
The ⫌ symbol (Superset of above not equal to, U+2ACC), written as \supsetneqq in LaTeX math mode.
The ⫌ symbol (Superset of above not equal to, U+2ACC), written as \supsetneqq in LaTeX math mode.
TeXForm parses this entry as a character leaf mapped to U+2ACC (SUPERSET OF ABOVE NOT EQUAL TO).