In TeXForm#
TeXForm parses this entry as a character leaf mapped to U+2135 (ALEF SYMBOL).
See also#
\backslashbase\lnotbase\negbase
The ℵ symbol (Alef symbol, U+2135), written as \aleph in LaTeX math mode.
TeXForm parses this entry as a character leaf mapped to U+2135 (ALEF SYMBOL).
\backslash base\lnot base\neg base