U+2A40 "⩀" Intersection with Dot Unicode Character

U+2A40 "⩀" Intersection with Dot is a mathematical symbol in the Supplemental Mathematical Operators block, used primarily in advanced set theory and logic notation to represent an intersection operation that includes a specific point or element, often denoting the intersection of sets with a distinguished or marked member. It visually consists of the standard intersection symbol, a rounded capital U shape, with a single dot placed centrally inside the curve. This character is intended for precise formal notation in academic texts and differs from ordinary intersection symbols by adding a functional or semantic mark.