U+2AE3 "⫣" Double Vertical Bar Left Turnstile Unicode Character

Unicode Version 17.0

U+2AE3 "⫣" Double Vertical Bar Left Turnstile is a typographical symbol primarily used in formal logic and mathematics to denote a specific kind of logical or metalogical relation. It typically represents the assertion that a proposition on its right is a logical consequence or theorem derivable under a set of assumptions or a formal system, with the double vertical bar emphasizing a stronger or non-classical type of entailment, such as in relevance logic or substructural logics. Unlike the more common single turnstile (⊢), this double-bar variant can indicate a modified deduction or a relation within proof theory that resists certain structural rules. Its appearance features two parallel vertical strokes intersecting a horizontal arm extending to the left, distinguishing it visually from similar symbols like the right turnstile or double vertical bar with other orientations.

General Properties

Code Point U+2AE3
Version Added 3.2
Name Double Vertical Bar Left Turnstile
Block Supplemental Mathematical Operators
General Category Math Symbol
Canonical Combining Class Not Reordered
Bidirectional Class Other Neutral
Mirrored Yes
Mirrored Character "⊩" U+22A9 Forces

Encodings

HTML Decimal Encoding ⫣
HTML Hex Encoding ⫣
UTF-8 Encoding 0xE2 0xAB 0xA3
UTF-16 Encoding 0x2AE3
UTF-32 Encoding 0x00002AE3
C/C++/Java Escape \u2ae3

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
NFKC Quick Check Yes
NFKD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Alphabetic
Script Common
Script Extensions Common
Indic Syllabic Category Other
Pattern Syntax Yes
Math Yes
Vertical Orientation Rotated
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Other
Sentence Break Other