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A comment on The Art of LaTeX: Advice for Typesetting Beautiful, Delightful Proofs. Parent comment

Re:The Art of LaTeX: Advice for Typesetting Beautiful, Delig... by gnull on Sunday January 08, 2023 @02:30PM (#34302236) 

  \DeclarePairedDelimiter\abs{\lvert}{\rvert}
Isn't this better than newcommand? This makes both \abs{x} and \abs*{x} valid.
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