U+1EEB3 "𞺳" Arabic Mathematical Double-Struck Reh Unicode Character

U+1EEB3 "𞺳" Arabic Mathematical Double-Struck Reh is a specialized typographic symbol belonging to the Arabic Mathematical Alphabetic Symbols block, designed for use in mathematical and scientific notations where a bold, blackboard style letter is required. It represents the Arabic letter "Reh" (ر) in a double struck or outline form, similar to how Latin letters like ℝ are used for sets or special numbers in mathematics. This character is intended for contexts such as algebra, number theory, or logic within Arabic script environments, allowing mathematicians and scholars to denote specific variables or constants with a clear, distinct visual style.