U+2ACF • mathematics
Symbol called Closed Subset, representing a subset relation with a closed or filled style. It is used in set theory or mathematical logic to denote a subset relation with additional properties or emphasis indicated by the closed form. This symbol differs visually and semantically from the standard subset symbol.
The Symbol For Closed Subset (â«) 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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