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I want to write following on my latex. Please help me.

enter image description here

\documentclass[12pt,oneside,a4paper]{report}
\pagestyle{plain}
\usepackage{enumerate}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{setspace}
\usepackage{bm}
\usepackage{mathdesign}
\usepackage{amsthm}
\usepackage{amssymb}
\usepackage{glossaries}
\usepackage{enumitem}
\makeglossaries
\newtheorem{theorem}{Theorem}[section]
\newtheorem{corollary}{Corollary}[section]
\newtheorem{lemma}{Lemma}[section]
\newtheorem{defn}{Definition}[section]
\newtheorem{remk}{Remark}[section]
\newtheorem{assump}{Assumptions}[section]
\numberwithin{equation}{section}
\setlength{\topmargin}{-.7in}
\setlength{\textheight}{9.5in}
\setlength{\oddsidemargin}{-.3in}
\setlength{\textwidth}{7in}
\renewcommand{\qedsymbol}{$\blacksquare$}
\begin{document}\begin{theorem}
If the $(k\times 1)$ vector $\bm{x}$ is distributed normally with mean vector $\bm{\mu}$ and variance-covariance matrix $\bm{I}_k$, then
\begin{enumerate}[(i).]
\item $\mathbb{E}[\phi(\bm{x}'\bm{x})\bm{x}]=\bm{\mu}\mathbb{E}[\phi(\chi^{2}_{(k+2,\Delta)})]$,
\item $\mathbb{E}[\phi(\bm{x}'\bm{x})\bm{x}\bm{x}']=\bm{I}_{k}\mathbb{E}[\phi(\chi^{2}_{(k+2,\Delta)})]+\bm{\mu}\bm{\mu}'\mathbb{E}[\phi(\chi^{2}_{(k+4,\Delta)})]$
\end{enumerate}
where $\Delta=\frac{1}{2}\bm{\mu}'\bm{\mu}$ is the noncentrality parameter.
\end{theorem}
 \begin{assump}[Regularity Conditions]
\begin{enumerate}[start=0,label={(\bfseries R\arabic*):}]
\begin{enumerate}
\item The pdfs are distinct.
\item The pdfs have common support for all $\theta$.
\end{enumerate}
\end{assump}
\end{document}
2
  • Welcome to TeX.SX! Please help us to help you and add a minimal working example (MWE) that illustrates your problem. It will be much easier for us to reproduce your situation and find out what the issue is when we see compilable code, starting with \documentclass{...} and ending with \end{document}.
    – user31729
    Feb 22, 2015 at 15:25
  • I have created an Assumptions environment using \newtheorem but I am unable to start from the next line and to create a custom items numbers starting from zero.
    – Kashif Ali
    Feb 22, 2015 at 15:26

2 Answers 2

20

Without further information this is a starter...(I've not done the theorem environment around the enumeration)

The enumitem package is the key for easy customization of itemize/enumerate lists. It provides the means for use a starter value (start=0) and the label=.... option.

enumitem can be used together or as enumerate using the shortlabels option.

\documentclass{article}
\usepackage{enumerate}
\usepackage[shortlabels]{enumitem}

\begin{document}

% Traditional style
\begin{enumerate}[a)] 
\item This is
\item an easy
\item customization of standard enumerate
\end{enumerate}


\begin{enumerate}[start=0,label={(\bfseries R\arabic*):}]
\item This is
\item an easy
\item customization of enumerate
\end{enumerate}
\end{document} 

enter image description here

5
  • 1
    @KashifAli: That's why I asked about the MWE ;-) Now this leaves my work useless :-(
    – user31729
    Feb 22, 2015 at 15:36
  • @KashifAli That is not an MWE. Please read the link Christian Hupfer provided. An MWE is a complete small document.
    – cfr
    Feb 22, 2015 at 15:40
  • 2
    @KashifAli enumitem can emulate enumerate, can't it? So can't you just switch?
    – cfr
    Feb 22, 2015 at 15:41
  • @KashifAli: Ok, but consider to clean up your document. The \setlength statements look a little bit strange. I suggest to use the geometry package. Happy TeXing! ;-)
    – user31729
    Feb 22, 2015 at 16:08
  • Why the second one has a bad indentation? I tried it but as you also showed, it has a negative indentation. It is not aligned with the rest of the text.
    – Hadij
    Feb 26, 2021 at 1:08
7

As there remains some problems with the placement of labels, I propose a variant that looks more like the image in the O.P.'s post. I replaced amsthm with ntheorem, which has a break theorem style and writes the optional argument of theorems in boldface if \theoremname is boldface.

Loading mathdesign did nothing, as no font was chosen as an option. I added charter.

\documentclass[12pt,oneside,a4paper]{report}
\pagestyle{plain}
\usepackage{mathtools}
\usepackage{graphicx}
\usepackage{setspace}
\usepackage{bm}
\usepackage[charter]{mathdesign}
\usepackage[shortlabels]{enumitem}

%\usepackage{amssymb}
%\usepackage{amsthm}
%\newtheorem{theorem}{Theorem}[section]
%\newtheorem{corollary}{Corollary}[section]
%\newtheorem{lemma}{Lemma}[section]
%\newtheorem{defn}{Definition}[section]
%\newtheorem{remk}{Remark}[section]
%\newtheorem{assump}{Assumptions}[section]
%\renewcommand{\qedsymbol}{$\blacksquare$}

  \usepackage[thmmarks, amsmath, thref]{ntheorem}

 \theoremstyle{plain}
 \theoremheaderfont{\upshape\bfseries}
 \theorembodyfont{\itshape}
 \theoremseparator{.}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{corollary}{Corollary}[section]
\newtheorem{lemma}{Lemma}[section]
\newtheorem{defn}{Definition}[section]
\newtheorem{remk}{Remark}[section]

\theoremstyle{break}
 \theoremseparator{.\medskip}
\newtheorem{assump}{Assumptions}[section]

 \theoremstyle{nonumberplain}
 \theoremheaderfont{\itshape}
 \theorembodyfont{\upshape}
 \theoremsymbol{\ensuremath{\blacksquare}}
 \newtheorem{proof}{Proof}

\numberwithin{equation}{section}
\setlength{\topmargin}{-.7in}
\setlength{\textheight}{9.5in}
\setlength{\oddsidemargin}{-.3in}
\setlength{\textwidth}{7in}

\begin{document}
\setcounter{chapter}{6}\setcounter{section}{1}
\begin{theorem}
  If the $(k \times 1)$ vector $\bm{x}$ is distributed normally with mean vector $\bm{\mu}$ and variance-covariance matrix $\bm{I}_k$, then
  \begin{enumerate}[(i).]
    \item $\mathbb{E}[\phi(\bm{x}'\bm{x})\bm{x}]=\bm{\mu}\mathbb{E}[\phi(\chi^{2}_{(k+2,\Delta)})],$

    \item $\mathbb{E}[\phi(\bm{x}'\bm{x})\bm{x}\bm{x}'] = \bm{I}_{k}\mathbb{E}[\phi(\chi^{2}_{(k+2,\Delta)})] + \bm{\mu}\bm{\mu}'\mathbb{E}[\phi(\chi^{2}_{(k+4,\Delta)})],$
  \end{enumerate}
  where $\Delta=\frac{1}{2}\bm{\mu}'\bm{\mu}$ is the noncentrality parameter.
\end{theorem}

\begin{assump}[Regularity Conditions]
  \begin{enumerate}[start=0,label={\upshape(\bfseries R\arabic*):},wide = 0pt, leftmargin = 3em]
    \item The pdfs are distinct; i.e., $ \theta \neq \theta' \Rightarrow f(x_i; \theta) \neq f(x_i; \theta')$. Text text text text text text text text text text text text text text text text text.
    \item The pdfs have common support for all $\theta$.
    \item The point $ \theta_0$ is an interior point of $ \Omega $.
  \end{enumerate}
\end{assump}
\end{document}

enter image description here

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