U+2AE5 "⫥" Double Vertical Bar Double Left Turnstile Unicode Character

U+2AE5 "⫥" Double Vertical Bar Double Left Turnstile is a mathematical symbol used primarily in formal logic and type theory to denote a specific kind of semantic entailment or derivability relation. It visually resembles a double vertical bar with two horizontal lines extending to the left, suggesting a bidirectional or double-sided turnstile that indicates a stronger or more symmetric logical connection than a single turnstile. This character is part of the Supplemental Mathematical Operators block, aiding in precise notation for advanced logical systems and computer science applications such as lambda calculus or category theory.