2

Sometimes I add footnotes to my proofs e.g. to specify where I took it from, such as in the following:

\documentclass{article}
\usepackage{amsthm}

\begin{document}

\begin{proof}[Proof\footnotemark]
\footnotetext{A footnote.}
The proof.
\end{proof}

\end{document}

If one were to typeset the above, one would find that the "f" of the word "Proof" collides with the footnote mark.

One could leave a space between the text and the footnote mark, but this would create too large a space between the text and the footnote mark.

I am puzzled as to why this should be a problem. The problem does not arise when one ordinarily writes italicised text.

Your help would be most highly appreciated.

1
  • 2
    Insert the italic correction with \/: Proof\/\footnotemark
    – moewe
    Apr 5, 2020 at 14:53

1 Answer 1

2

The exact same effect can be seen in

\textit{Proof\footnotemark}

because the italic f leans to the right quite a bit and may intrude into other characters' space.

It is not visible, however, in

\textit{Proof}\footnotemark

because LaTeX inserts a so-called italic correction at the end of \textit to avoid such clashes.

You can insert the italic correction manually with \/

\documentclass{article}
\usepackage{amsthm}

\begin{document}

\begin{proof}[Proof\/\footnotemark]
\footnotetext{A footnote.}
The proof.
\end{proof}

\end{document}

Proof with footnote: No clash

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.