If I have the following
\newtheorem{remark}{Remark}
I will obtain Remark 1, Remark 2 and so on. May I know how to remove the numbering in Remark? Like I just want the word "Remark" and not the number 1, 2, 3 and so on.
[Tex/LaTex] Not numbering Remarks
numberingtheorems
Related Solutions
Here is some code that addresses your concerns (but please rethink if you want to confuse your readers! Please!):
\documentclass{book}
\usepackage{amsthm}
\newtheoremstyle{myplain}% name
{3pt}% Space above
{3pt}% Space below
{\itshape}% Body font
{}% Indent amount
{\bfseries}% Theorem head font
{}% Punctuation after theorem head
{.5em}% Space after theorem head
{}% Theorem head spec (can be left empty, meaning `normal')
\newtheoremstyle{mypro}% name
{3pt}% Space above
{3pt}% Space below
{}% Body font
{}% Indent amount
{\bfseries}% Theorem head font
{}% Punctuation after theorem head
{.5em}% Space after theorem head
{}% Theorem head spec (can be left empty, meaning `normal')
\theoremstyle{myplain}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{corollary}[theorem]{Corollary}
\newtheorem{lemma}[theorem]{Lemma}
\theoremstyle{mypro}
\newtheorem{proposition}{Proposition}[section]
\newtheorem{remark}{Remark}[proposition]
\newtheorem*{remark*}{Remark} %For having unnumbered remarks.
\theoremstyle{definition}
\newtheorem*{example}{Example}
\newtheorem{definition}{Definition}
\renewcommand{\theremark}{\arabic{remark}}
\begin{document}
\chapter{Number Theory}
\section{Linear Congruences}
\begin{theorem}
Here is my theorem.
\end{theorem}
\begin{remark}
Text
\end{remark}
\begin{remark}
Text
\end{remark}
\begin{remark}
Text
\end{remark}
\begin{proposition}
Here is my proposition.
\end{proposition}
\begin{remark}
Text
\end{remark}
\begin{remark}
Text
\end{remark}
\begin{lemma}
Here is my lemma.
\end{lemma}
\begin{remark*}
Text
\end{remark*}
\end{document}
The annotations for the theoremstyle are taken verbatim from the AMS guide to amsthm (available here).
The following example patches \@thm that is defined by amsthm to remove the number, if there is only one entity.
If the theorem entity has reached number 2, then there are multiple items and a label is written to the .aux file using the theorem name and number as key.
In the next LaTeX run, the existence of this key is checked for the first item and the number is suppressed, if the label exists and there are multiple items.
\documentclass{article}
\usepackage{amsthm}
\newtheorem{thm}{Theorem}
\theoremstyle{remark}
\newtheorem{rmk}{Remark}[thm]
\usepackage{etoolbox}
\usepackage{zref-base}
\makeatletter
\patchcmd\@thm{%
\refstepcounter{#2}%
\def\@tempa{\@oparg{\@begintheorem{#3}{\csname the#2\endcsname}}[]}%
}{%
\refstepcounter{#2}%
\def\@tempa{\@oparg{\@begintheorem{#3}{\csname the#2\endcsname}}[]}%
% \in@{,#2,}{,...,}\ifin@...\fi select the theorems for this patch
\in@{,#2,}{,rmk,}% list of theorems with "intelligent numbering"
\ifin@
\ifnum\value{#2}=2 %
\if@filesw
\zref@wrapper@immediate{%
\zref@labelbyprops{IntNumTheo.#2@\csname the#2\endcsname}{}%
}%
\fi
\fi
\ifnum\value{#2}=1 %
\stepcounter{#2}%
\zref@ifrefundefined{IntNumTheo.#2@\csname the#2\endcsname}{%
\def\@tempa{\@oparg{\@begintheorem{#3}{}}[]}%
}{}%
\addtocounter{#2}{-1}%
\fi
\fi
}{}{\errmessage{Patching \noexpand\@thm failed}}
\makeatother
\begin{document}
\begin{thm}
Lorem ipsum.
\end{thm}
\begin{rmk} % only one remark made, so don't number it
It is Latin for ``I have boring examples''.
\end{rmk}
\begin{thm}
We see that $\pi$ is an interesting number.
\end{thm}
\begin{rmk} % Multiple remarks require numbering
It's the ratio of the circumference to the diameter of a circle.
\end{rmk}
\begin{rmk}
It's also used when I do my taxes.
\end{rmk}
% snip
\end{document}
Best Answer
By reading the documentation of
amsthmyou will find that this definition:allows you to not have numbers.
Look at this MWE:
The result is: