U+2138 "ℸ" Dalet Symbol Unicode Character

U+2138 "ℸ" Dalet Symbol is a typographic and scientific notation glyph representing the fourth letter of the Hebrew alphabet, dalet, used in contexts such as mathematics and logic as a symbol for the fourth element in a set or sequence. It is part of the Letterlike Symbols block in Unicode, designed to distinguish it from regular alphabetical characters for specialized uses, including in some forms of symbolic logic or as a notation in Talmudic and Kabbalistic references. The symbol carries the same sound value as the English "d" and maintains a visual connection to its Hebrew script origin, with a distinctive angular shape featuring a diagonal stroke.