U+298D "⦍" Left Square Bracket with Tick in Top Corner Unicode Character

U+298D "⦍" Left Square Bracket with Tick in Top Corner is a typographical symbol used primarily in mathematical and formal notation, where it functions as a specialized bracket or delimiter. Its design features a standard left square bracket with a small inward-pointing tick or hook at the upper right corner, distinguishing it from plain brackets. This character is part of the Miscellaneous Mathematical Symbols-B block and may appear in logical expressions, set theory, or other technical contexts where a visual distinction between different bracket types is required. The tick in the top corner helps indicate a specific semantic role or boundary within nested notations, though its usage is niche and largely confined to specialized academic or typesetting systems.