U+2A29 "⨩" Minus Sign with Comma Above Unicode Character

U+2A29 "⨩" Minus Sign with Comma Above is a mathematical symbol used primarily in formal logic and mathematics to denote a type of subtraction or negation that includes an additional qualifier, often indicating a relation where the operation is modified by a comma-like diacritical mark. It belongs to the Supplemental Mathematical Operators block and is typically employed in specialized notation, such as in certain logical calculi or algebraic structures, to distinguish it from the standard minus sign. The comma above the minus sign serves as a diacritical marker, suggesting a variation or contextual nuance in the operation it represents, though its use is rare outside of specific academic or technical contexts.