4

I want to be able to write the following in LaTeX

    We make the further assumption that
\begin{equation} \label{eqn:assumption} There is a bounded linear operator
    $B:X\to X^*$ such that $B^*=B$ and the operator $JB$ is an extension of $T'(0)$\end{equation}

and get a nice output, in such a way that this whole chunk of text along with the math can be referenced later. Of course I can write text inside the equation environment using \text{}, but when I tried this the spacing was all wrong. Can anyone suggest a solution to this?

4

Use a minipage

\documentclass{article}
\usepackage{amsmath}
\begin{document}
  We make the further assumption that
  \begin{equation}\label{eqn:assumption}
    \begin{minipage}{0.9\textwidth}
    There is a bounded linear operator
    $B:X\to X^*$ such that $B^*=B$ and the operator $JB$ is an
    extension of $T'(0)$
    \end{minipage}
  \end{equation}
\end{document}

enter image description here

1

For example (the value is only exemplary):

\documentclass{article}
\usepackage{amsmath}


\begin{document}

We make the further assumption that
\begin{equation} \label{eqn:assumption} 
\text{\begin{tabular}{p{0.85\linewidth}}
There is a bounded linear operator
    $B\colon X\to X^*$ such that $B^*=B$ and the operator $JB$ is an extension of $T'(0)$
\end{tabular}
}
\end{equation}

\end{document}

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