\documentclass{article}
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\newtheorem{lemma}{Lemma}
\newtheorem{proposition}{Proposition}
\newtheorem{definition}{Definition}
\newtheorem{example}{Example}
\newtheorem{conjecture}{Conjecture}
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\begin{document}
\title{l51\_arytm\_2 (TMTxvCA2C2q73bQQw4iwAZYy7kUV1t1cQ67)}
\maketitle
Let $ k12\_arytm\_3 : {\iota}$ be given.
Let $ np\_\_1 : {\iota}$ be given.
Let $ k1\_arytm\_3 : {\iota}$ be given.
Assume the following.
\begin{equation}
{{k12\_arytm\_3}={k1\_arytm\_3}}\label{hyp:chfgegfgggjgogjgehjgpgogpflgbdcdpfbgchjhehngpfdd}
\end{equation}
Assume the following.
\begin{equation}
{{k1\_arytm\_3}={np\_\_1}}\label{hyp:egbdpfbgchjhehngpfdd}
\end{equation}
\begin{theorem}\label{thm:mgfdbdpfbgchjhehngpfcd}
${{k12\_arytm\_3}={np\_\_1}}$.
\end{theorem}
\end{document}
