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This is probably very simple to do, but I am trying to write restatable theorems with boxes around them. Looking at this answer, box around theorem statement, I get a way to put boxes around a theorem, but then using the restatable option removes the boxes, as shown below:

\documentclass{article} \usepackage{mdframed} \usepackage{lipsum} \usepackage{thmtools, thm-restate} \newmdtheoremenv{thm}{Theorem} \begin{document} \begin{thm} \lipsum*[1] \end{thm} \begin{restatable}{thm}{Lips} \lipsum*[1] \end{restatable} \end{document}

produces:enter image description here

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2 Answers 2

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Instead of using directly the newmdtheoremenv command, you can declare your own theorem style. In the following, I defined a framedstyle, and defined the thm environment simply to be a theorem of that style. This way, when the theorem is restated, it is restated in the same theorem style, so it is framed again.

\documentclass{article} \usepackage{mdframed} \usepackage{lipsum} \usepackage{amsthm} \usepackage{thmtools, thm-restate} \declaretheoremstyle[ headfont=\bfseries, bodyfont=\normalfont\itshape, headpunct={}, spacebelow=\parsep, spaceabove=\parsep, mdframed={ innertopmargin=6pt, innerbottommargin=6pt, skipabove=\parsep, skipbelow=\parsep} ]{framedstyle} \declaretheorem[ style=framedstyle, name=Theorem ]{thm} \begin{document} \begin{thm} \lipsum*[101] \end{thm} \begin{restatable}{thm}{Lips} \lipsum*[101] \end{restatable} \Lips* \end{document}

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(Disclaimer: I wrote the package, keytheorems, used below.)

With keytheorems it's easy to define and restate theorems wrapped in a tcolorbox.

\documentclass{article} \usepackage{keytheorems} \usepackage{lipsum} \newkeytheoremstyle{framedstyle} { headpunct={}, tcolorbox-no-titlebar= { sharp corners, boxrule=1pt, colback=white, }, } \newkeytheorem{thm}[ style=framedstyle, name=Theorem, ] \begin{document} \begin{thm} \lipsum*[101] \end{thm} \begin{thm}[store=Lips] \lipsum*[101] \end{thm} \getkeytheorem{Lips} \end{document}

tcolorbox theorems

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