x]. Used in mathematics to indicate absolute value (Abs), determinant (Det), and other notions of evaluating size or magnitude. Not the same as \[VerticalBar]. Drawn in monospaced fonts with a small right-pointing tee to indicate direction. Extensible character. See The Mathematica Book: Section 3.10.4. See also: \[RightDoubleBracketingBar], \[RightTee].
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\[RightBracketingBar]
r|
is by default interpreted as BracketingBar[
