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Home/ Questions/Q 359363
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Editorial Team
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Editorial Team
Asked: May 12, 20262026-05-12T12:23:12+00:00 2026-05-12T12:23:12+00:00

hi i am using latex… wanted to use the following: \begin{proof} … \end{proof} it

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hi i am using latex… wanted to use the following:

       \begin{proof}
       ...
       \end{proof}

it gives me the following error:
!Latex error: Environment proof undefined. can you help me to solve this problem? thanks

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  1. Editorial Team
    Editorial Team
    2026-05-12T12:23:13+00:00Added an answer on May 12, 2026 at 12:23 pm

    The proof environment is part of AMS-LaΤεχ, not plain LaΤεχ, so you need to:

    \usepackage{amsthm}
    

    See this AMS-LaTeX page for details. If you don’t already have the packages installed, grab them at http://www.ams.org/tex/amslatex.html

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