In TeXForm#
TeXForm parses this entry as a character leaf mapped to U+0131 (LATIN SMALL LETTER DOTLESS I).
\bbalpha\bbbeta\bbchi\bbdelta\bbDelta\bbdotlessi\bbdotlessj\bbepsilon\bbeta\bbgamma\bbGamma\bfbbdotlessi
\bfbbdotlessiSymbol
The ı symbol (Latin small letter dotless i, U+0131), written as \bfbbdotlessi in LaTeX math mode.