0

I want to write something like this:

enter image description here

I tried using this:

\bigg\lbrace {#1} \bigg\rbrace

My problem is: If I add some skip-lines ( using \ \ ) nothing happens in the document. If someone knows has to do it or knows other way to do it, please tell me =D

2

For larger-than-normal delimiters, you can use \left...\right:

enter image description here

\documentclass{article}

\usepackage{amsmath}

\begin{document}

\[
  \left\{
    \begin{tabular}{c}
      subfields $E$ \\ of $K$ \\ containing $F$
    \end{tabular}
    \begin{array}{c}
      K \\ \vert \\ E \\ \vert \\ F
    \end{array}
  \right\}
  \quad
  \longleftrightarrow
  \quad
  \left\{
    \begin{tabular}{c}
      subgroups $H$ \\ of $G$
    \end{tabular}
    \begin{array}{c}
      1 \\ \vert \\ H \\ \vert \\ G
    \end{array}
  \right\}
\]

\end{document}
0

A short code with a single blockarrayenvironment:

\documentclass{article}
\usepackage{blkarray} 
\usepackage{amsmath}

\begin{document}

\[ \begin{blockarray}{\{\BAmultirow{2.2cm}c@{\enspace}c\}\BAmultirow{1cm}\{\BAmultirow{2.2cm}c@{\enspace}c\}}
  \parbox{1in}{\centering subfields $E$ \\ of $K$ \\ containing $F$} &    K  &  &\centerline{$  \longleftrightarrow $}& 
   \parbox{1in}{\centering subgroups $H$ \\ of $G$} &    1 & \\
   & \vert &  &  & & \lvert  &  \\
   & E &  &  &  & H &  \\
    & \vert  &  &  &  & \lvert  &  \\
     &  F &  &  &  & G & 
\end{blockarray}  \]%

\end{document} 

enter image description here

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