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How to type a box as the end of a proof

How to type a box as the end of a proof# TeX - TeX电子排版系统

o*e2007-01-30 08:01

1 楼

I want to use a box to describe the end of a proof (as in many books). Tried
'\Box' or '\box' but they don't work. Any body has ideas about it? Thanks a
lot.

s*r2007-01-30 08:01

2 楼

\qed

Tried
a

【在 o*******e 的大作中提到】

: I want to use a box to describe the end of a proof (as in many books). Tried
: '\Box' or '\box' but they don't work. Any body has ideas about it? Thanks a
: lot.

T*n2007-01-30 08:01

3 楼

$\blacksquare$ or \ensuremath{\blacksquare}

Tried
a

【在 o*******e 的大作中提到】

: I want to use a box to describe the end of a proof (as in many books). Tried
: '\Box' or '\box' but they don't work. Any body has ideas about it? Thanks a
: lot.

o*e2007-01-30 08:01

4 楼

Thank you. But it seems that it does not work.

【在 s**********r 的大作中提到】

: \qed
:
: Tried
: a

o*e2007-01-30 08:01

5 楼

Thank you. But it seems that they do not work.

【在 T*******n 的大作中提到】

: $\blacksquare$ or \ensuremath{\blacksquare}
:
: Tried
: a

T*n2007-01-30 08:01

6 楼

\documentclass{article}
\usepackage{amssymb}
\begin{document}
$\blacksquare$
$\square$
\end{document}

【在 o*******e 的大作中提到】

: Thank you. But it seems that they do not work.