abstract (LaTeX2e unofficial reference manual (November 2018))

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### 8.1 `abstract`

Synopsis:

    \begin{abstract}
    ...
    \end{abstract}

Produce an abstract, possibly of multiple paragraphs. This environment is only defined in the `article` and `report` document classes (see Document classes).

Using the example below in the `article` class produces a displayed paragraph. Document class option `titlepage` causes the abstract to be on a separate page (see Document class options); this is the default only in the `report` class.

    \begin{abstract}
      We compare all known accounts of the proposal made by Porter Alexander
      to Robert E Lee at the Appomattox Court House that the army continue
      in a guerrilla war, which Lee refused.
    \end{abstract}

The next example produces a one column abstract in a two column document (for a more flexible solution, use the package `abstract`).

    \documentclass[twocolumn]{article}
      ...
    \begin{document}
    \title{Babe Ruth as Cultural Progenitor: a Atavistic Approach}
    \author{Smith \\ Jones \\ Robinson\thanks{Railroad tracking grant.}}
    \twocolumn[
      \begin{@twocolumnfalse}
         \maketitle
         \begin{abstract}
           Ruth was not just the Sultan of Swat, he was the entire swat
           team.
         \end{abstract}
       \end{@twocolumnfalse}
       ]
    {   % by-hand insert a footnote at page bottom
     \renewcommand{\thefootnote}{\fnsymbol{footnote}}
     \footnotetext[1]{Thanks for all the fish.}
    }

Unofficial LaTeX2e reference manual