U+2A41 • mathematics
Union with Minus Sign (⩁) is a mathematical symbol depicting the union of sets combined with a minus sign, indicating a specialized union operation possibly involving exclusion or difference. It is used in set theory and advanced mathematical contexts to represent particular union-related operations. This symbol extends the standard union notation.
The Symbol For Union with Minus Sign (⩁) is a unicode character in the Basic Multilingual Plane Plane. It is found in the Supplemental Mathematical Operators block and was approved as part of Unicode Version 3.2 in 2002
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