[Tex/LaTex] How to add blank space in proof environment without changing the position of the word “proof”

spacingtheorems

I LaTeX my homework, and for one problem, I want only white space in the proof environment since I'll be hand-drawing a picture. when I type in 

\begin{proof}
\vspace{1in}
\end{proof}

the outcome is

enter image description here

i.e., the word "proof" goes to the bottom. Is there any way to move the word back to the top?

Best Answer

Set something - a zero-width, empty box like \mbox{} - so that the proof title is set, and then issue your 1in vertical space:

enter image description here

\documentclass{article}

\usepackage{amsthm}
\newtheorem{theorem}{Theorem}

\begin{document}

\begin{theorem}
A regular theorem.
\end{theorem}

\begin{proof}
\mbox{}\par
\vspace{1in}
\end{proof}

\end{document}

The reason for the way it currently is displayed is because the proof environment is actually a list... actually a single-item list. These items are only set once you set the list entry. So, using \mbox{} acts like setting something and therefore prints the visible Proof..

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