[Tex/LaTex] Change theorem counter in Springer template

codecountersnumbering

I used Springer template for my book, more concrete I used svmono.

Here is a MWE, that is the shortened version of my template file.

  \documentclass[graybox,envcountsec,sectrefs,vecarrow,envcountresetsect]{svmono}
  \usepackage[utf8]{inputenc}
  \usepackage[vietnam]{babel}
  \usepackage{savesym}
  \usepackage{mathptmx}
  \savesymbol{hbar}
  \usepackage{helvet}
  \usepackage{courier}
  \usepackage{type1cm}           
  \usepackage{fouriernc}
  \usepackage{esvect}   
  \let\remark\relax
  \let\endremark\relax
  \renewcommand{\thesection}{\arabic{section}.}
  \renewcommand\definitionname{Định nghĩa}
  \spnewtheorem*{remark}{Remark}{\itshape}{\rmfamily}
  \renewcommand\remarkname{Chú ý}
  \renewcommand\lemmaname{Bổ đề}
  \begin{document}
  \chapter{The direction of a segment}
  \section{Some basics definition}
  \begin{definition}
  That is definition
  \end{definition}
  \begin{theorem}
  This is theorem. 
  \end{theorem}
  \begin{remark}
  This is remark
  \end{remark}
  \begin{lemma}
  this is lemma
  \end{lemma}
  \end{document}

I want to numbering the chapter like Chapter I, not chapter 1 as in this template did. I also want to numbering the theorem, definition, remark, lemma section-wise, i.e Theorem 2.1(the first theorem in section 2), the next enviroment(definition, lemma, ..) will be Defintion 2.2,..i.e use the same counter in a section for every enviroment(except the proof enviroment) ?

But how can I change the template to get that ? Please help me.

Best Answer

Here's one possibility. Using the predefined structures from svmono.cls, there's no easy way to make the changes to the counters. You have two possibilities:

  1. Define new structures with the desired numbering schema, as I illustrate below for definitions, lemmata and theorems:

    \documentclass[graybox,sectrefs,vecarrow,envcountresetsect]{svmono}
  \usepackage[utf8]{inputenc}
  \usepackage[vietnam]{babel}
  \usepackage{savesym}
  \usepackage{mathptmx}
  \savesymbol{hbar}
  \usepackage{helvet}
  \usepackage{courier}
  \usepackage{type1cm}           
  \usepackage{fouriernc}
  \usepackage{esvect}   
  \usepackage{chngcntr}   
% chapter numbering in Roman numerals
  \renewcommand{\thechapter}{\Roman{chapter}}
% section numbering arabic, without chapter counter
  \renewcommand{\thesection}{\arabic{section}}
  \renewcommand\definitionname{Định nghĩa}

  \let\remark\relax
  \let\endremark\relax

\spnewtheorem*{remark}{Remark}{\itshape}{\rmfamily}
\spnewtheorem{theo}{Theorem}[section]{\bfseries}{\itshape}
\spnewtheorem{lemm}[theo]{Lemma}{\bfseries}{\itshape}
\spnewtheorem{defi}[theo]{Definition}{\bfseries}{\itshape}


  \renewcommand\remarkname{Chú ý}
  \renewcommand\lemmaname{Bổ đề}

\usepackage{titlesec}
% Add a period after the section number
\titleformat{\section}
  {\normalfont\large\bfseries}{\thesection.}{0.4em}{}

% counters within section counter
  \counterwithin{definition}{section}
  \counterwithin{theorem}{section}
  \counterwithin{lemma}{section}

  \begin{document}
  \chapter{The direction of a segment}
  \section{Some basics definition}
  \begin{defi}
  That is definition
  \end{defi}
  \begin{theo}
  This is theorem. 
  \end{theo}
  \begin{remark}
  This is remark
  \end{remark}
  \begin{lemm}
  this is lemma
  \end{lemm}
  \end{document}

enter image description here

  1. If, for some reason, new structures are not possible (perhaps you already have written a large amount of your text), then you can first annihilate the original definitions (by \letting the corresponding macros to \relax) and then make new definitions with the desired numbering schema:

    \documentclass[graybox,sectrefs,vecarrow,envcountresetsect]{svmono}
  \usepackage[utf8]{inputenc}
  \usepackage[vietnam]{babel}
  \usepackage{savesym}
  \usepackage{mathptmx}
  \savesymbol{hbar}
  \usepackage{helvet}
  \usepackage{courier}
  \usepackage{type1cm}           
  \usepackage{fouriernc}
  \usepackage{esvect}   
  \usepackage{chngcntr}   
% chapter numbering in Roman numerals
  \renewcommand{\thechapter}{\Roman{chapter}}
% section numbering arabic, without chapter counter
  \renewcommand{\thesection}{\arabic{section}}
  \renewcommand\definitionname{Định nghĩa}

  \let\remark\relax
  \let\endremark\relax
  \let\definition\relax
  \let\enddefinition\relax
  \let\lemma\relax
  \let\lemma\relax
  \let\theorem\relax
  \let\endtheorem\relax

\spnewtheorem*{remark}{Remark}{\itshape}{\rmfamily}
\spnewtheorem{theorem}{Theorem}[section]{\bfseries}{\itshape}
\spnewtheorem{lemma}[theorem]{Lemma}{\bfseries}{\itshape}
\spnewtheorem{definition}[theorem]{Definition}{\bfseries}{\itshape}


  \renewcommand\remarkname{Chú ý}
  \renewcommand\lemmaname{Bổ đề}

\usepackage{titlesec}
% Add a period after the section number
\titleformat{\section}
  {\normalfont\large\bfseries}{\thesection.}{0.4em}{}

% counters within section counter
  \counterwithin{definition}{section}
  \counterwithin{theorem}{section}
  \counterwithin{lemma}{section}

  \begin{document}
  \chapter{The direction of a segment}
  \section{Some basics definition}
  \begin{definition}
  That is definition
  \end{definition}
  \begin{theorem}
  This is theorem. 
  \end{theorem}
  \begin{remark}
  This is remark
  \end{remark}
  \begin{lemma}
  this is lemma
  \end{lemma}
  \end{document}
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