Supplemental Mathematical Operators
Supplemental Mathematical Operators is a Unicode block containing various mathematical symbols, including N-ary operators, summations and integrals, intersections and unions, logical and relational operators, and subset/superset relations. == Block == == Variation sequences == The Supplemental Mathematical Operators block has eight variation sequences defined for standardized variants.
Source: Wikipedia — Supplemental Mathematical Operators (CC BY-SA 4.0)