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I have a constant defined by




I use this constant in equations. But in the theorem environment, it appears in italic style. Does anyone know how to make it appear the same as it being put outside of theorem environment?

Thank you very much!

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3 Answers

up vote 5 down vote accepted

if you are using amsmath (which you may be, since you are using \text) it would be better to use \DeclareMathOperator{\Lip}{Lip}. then it will always be in an upright font.

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You could use

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I've deleted my comments. You can now delete yours. –  Gonzalo Medina Aug 1 '11 at 21:50
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\usepackage{xspace}% To avoid adding a forced space after a command: '\Lip\ '
\newcommand{\Lip}{{\upshape Lip}\xspace}
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