In TeXForm#
TeXForm parses this entry as a character leaf mapped to U+25B4 (BLACK UP-POINTING SMALL TRIANGLE).
\blacktriangleSymbol
The ▴ symbol (Black up-pointing small triangle, U+25B4), written as \blacktriangle in LaTeX math mode.
The ▴ symbol (Black up-pointing small triangle, U+25B4), written as \blacktriangle in LaTeX math mode.
TeXForm parses this entry as a character leaf mapped to U+25B4 (BLACK UP-POINTING SMALL TRIANGLE).