I would like two of my lemmas to be numbered additionally by letters, e.g. Lemma 2a. and Lemma 2b, while the all other lemmas (and theorems etc.) are numbered normally by numbers. \newtheorem{lemma}{Lemma} \begin{document} \begin{lemma} This should be Lemma 1. \end{lemma} \begin{lemma} This should be Lemma 2a. \end{lemma} \begin{lemma} This should be Lemma 2b. \end{lemma} \begin{lemma} This should be Lemma 3. \end{lemma} \end{document}  Duplicate, I guess: tex.stackexchange.com/q/43346/4427
89486
I am trying to number my theorems as follows:  Theorem 1.A. First part of a theorem.  Theorem 1.B. Second part of the theorem.  Theorem 2. A theorem with no parts.  The following almost works:  \newtheorem{theorem}{Theorem} \newtheorem{theorempart}{Theorem}[theorem]   But it does not increment the theorem counter as I want, so that  \begin{theorempart}First part of a theorem. \end{theorempart}  \begin{theorempart}Second part of the theorem. \end{theorempart}  \begin{theorem}A theorem with no parts. \end{theorem}   gives:  Theorem 0.1. First part of a theorem.  Theorem 0.2. Second part of the theorem.  Theorem 1. A theorem with no parts.  Also, I don't know how to get the part-number to be a letter instead of a number.  I am using MiKTeX.
43914
I am writing a book, and would like to be able to have the photographs labelled with an independent numbering system to my figures.  In the text I would refer to, for example, figure X and separately to photograph X, so I want them to have different numbering systems, just as equations and figures do.  Is it possible to have a different \begin{figure} environment so that the numbering can be separated?
65674
I would like to make a list of symbols and abbreviations without using any special packages like nomencl and alike. What I would like is just left-aligned two columns once for the symbols and one for the abbreviations.   Should I start with the following?  \begin{flalign*} Symbol_1 &amp;: Meaning of Symbol_1 \\ Symbol_2 &amp;: Meaning of Symbol_2 : : \end{flalign*}   Would be very grateful for any help!
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I'm using amsart. When I create an enumeration inside a theorem environment, the numbering is not aligned properly:  Theorem 14. (1) (2) (3) (4)   How do I shift the (2),(3),... to be aligned with (1)?  MWE:  \documentclass{amsart} \newtheorem{thm}{Theorem}[section]  \begin{document} \begin{thm} \begin{enumerate} \item Item 1 \item Item 2 \item Item 3 \end{enumerate} \end{thm} \end{document}
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Is there a macro available that will turn "1" into "first", "2" into "second", etc.  Let's call this macro "wordth".  Then, for example, if item number 2 in an enumerate environment is labeled by \label{item:blah}, I could write something like  The \wordth{\ref{item:blah}} item is problematic.   which would be formatted as "The second item is problematic."  (Bonus points for other languages, but I only need it for English.)   points to the  package for turning "1" into "1st", etc.  The  package also does this.  Neither appears to provide fully spelled out English ordinals.  In many situations only full words for ordinals, not their abbreviations, are appropriate.  This is probably a FAQ, but it's one of those things that's difficult to search.  Feel free to point to a dupe question and close.
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I am trying to use the  package.  I have the following counters defined (hopefully this is the right way to do it!)  \newtheorem{thm}{Theorem}[section] \newtheorem{lemma}[thm]{Lemma} \newtheorem{cor}[thm]{Corollary}   This works as I would like (i.e. Theorem 1.1, Corollary 1.2, Lemma 1.3, etc.)  My problem is \cref always returns Theorem 1.2, Theorem 1.3. I   Perhaps this is not right? (In my preamble)  \crefname{thm}{theorem}{theorem's} \crefname{lemma}{lemma}{lemma's}
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How would I get rid of the date, and the numbers 1 and 2? My latex code is below. I cant post images as Im a new user, sorry!  \documentclass[10pt]{article}   \begin{document}  \title{Banana Cake} \maketitle   \section{Ingredients}  \begin{itemize}   \item The first item   \item The second item   \item The third etc \end{itemize}  \section{Method} \begin{enumerate}   \item The first item   \item The second item   \item The third etc \end{enumerate}    \end{document}
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In how many ways can the letters of the word $MISSISSIPPI$ be rearranged ?   I am confused on whether it is  $\dfrac{11!}{4!4!2!}$ or $\dfrac{11!}{4!4!2!}-1$  since it is given rearranged and not arranged.
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In my macro file, I have certain theorem environments defined, for example.  \newtheorem{theorem}{Theorem} \newtheorem{lemma}[theorem]{Lemma} \newtheorem{corollary}[theorem]{Corollary}  \theoremstyle{definition} \newtheorem{definition}[theorem]{Definition}   Again, these lines are in my macros.sty file of shortcuts.  In the past, I have changed the numbering of theorem, etc... by using \numberwithin. I have recently learned that I can instead edit the \newtheorem line. For example, if I want results numbered according to section I can use  \newtheorem{theorem}{Theorem}[section]   My question now is about future situations when I have two documents, which both use the same macros.sty file, but in one document I want to number results by section and in the other document I want to number results by something else, say chapter.  How can I accomplish this without creating two different .sty files?   EDIT: I think I should add that I am looking for a way to do this without going back to \numberwithin. The reason for this is because \numberwithin doesn't seem to work well with the thmtools package.
86551
How many arrangements are there of MATHEMATICS with both T's before both A's or both A's before both M's or both M's before the E ?  Can someone also point to some online resource that has such practice questions ?  Thanks.  Edit:  I have some initial thought, please tell me if I am in the right direction :  For the case both T's before both A's :  We can picture the permutation as follows :  (7) T (7) T (7) A (7) A (7)  (Remaining letters: M H E M I C S - total 7)  Each of the brackets are empty spaces for now. We need to pick 7 out of the total 7 X 5 = 35 spaces; that will ensure both T's being before both A's.  So number of ways = C(35,7) X 7!/2! (because two M's are same - we need to divide by 2!)
21383
How can I make LaTeX use symbols (*, †, ‡, and so on) instead of numbers to mark footnotes?  (The numbers are confusing because I use superscripted numbers for citations.)
120809
So, I'm writing a mathematics paper, and let's say I have the following:  \begin{equation*} 2+2=4 \end{equation*}   Is this the proper way to do an unnumbered equation, or is it preferred to do the following:  \[ 2+2=4 \]   My question really is: what's the difference between doing \begin{equation*} and \begin{equation*} versus doing \[ \]? Is there a setting in which one may be preferred over the other?  Thanks in advance.
54350
What is the best way to write a ? Isn't there any standard command in LaTeX? For example, a command \binom is for binomial coefficients.  In the wikipedia article on Stirling number of the second kind, they used \atop command. But people say \atop is  recommended.
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To build a list of publications, I wish to show the most recent on top of the list, while keeping the numbering similar. This can be achieved manually by doing something like:  \begin{enumerate} \item[42] pub num 42 \item[41] pub num 41 \item[...] \item[1] pub num 1 \end{enumerate}   but is there a more principled approach?
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\documentclass[]{phstyle} \usepackage{latexsym,amsfonts,amssymb, undertilde} \usepackage[fleqn]{amsmath} \usepackage{makeidx}  %Preamble  \numberwithin{equation}{chapter} %\renewcommand{\theequation}{\thesection.\arabic{equation}}  \begin{document}  %\include{chapI}   these 2 lines are because the chapters are different tex files  %\include{chap1}  \renewcommand{\thechapter}{\Roman{chapter}}  %\setcounter{chapter}{0} %\renewcommand{\theequation}{\thechapter.\arabic{equation}}  \chapter{Introduction}  \section{Chap I Section1}  \begin{equation} this is equation I.1 \end{equation}  \begin{equation} this is equation I.2 \end{equation}  \section{Chap I Section2}  \begin{equation} this is equation I.3 \end{equation}  \chapter{Chapter 1}  \section{Chap 1 Section 1}  \begin{equation} this is equation 1.1.1 \end{equation}  \begin{equation} this is equation 1.1.2 \end{equation}  \end{document}     I have been typing Chapters 1-5 that contain sections and subsections and equations. The equations were numbered globally, i.e. if I had 3 equations in section 1 of Chap 1, they were numbered 1.1.1, 1.1.2, 1.1.3 and for Section 2, the equations were 1.2.4, 1.2.5, etc.  Recently I had to change Chap 1 and everything in it to Chapter I (roman number) and Chap 2 were renumbered to Chap 1, etc.  My problem is that LaTeX started numbering the equations in Chap I (the other chapters did not have this problem) according to the sections and not globally anymore. That is, the 3 equations in Chap I were I.1, I.2, I.3, and the equations in the second section of Chap I became I.1, I.2, etc instead of I.4, I.5, etc  I needed the prefix to be the chapter and not the sections. I don't understand why there is a change. I have never used \numberwithin in my book  Here are some of my codes  \documentclass[]{phstyle} \usepackage{latexsym,amsfonts,amssymb, undertilde} \usepackage[fleqn]{amsmath}   for the equation numbering in Chap I  \renewcommand{\thechapter}{\Roman{chapter}} \renewcommand{\theequation}{\thechapter.\arabic{equation}} **   Previously when Chap I was Chap 1, ** was  \renewcommand{\theequation}{\thesection.\arabic{equation}}   I have also tried the line below but it didn't work  \renewcommand{\theequation}{I.\arabic{equation}}   Thank you in advance
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I write homework assignments in LaTex and the assignments are always divided into subparts (i.e. Problem 1 is divided into 1.1, 1.2, 1.3, ...). Currently what I do is I have nested enumerations, but the numbering isn't exactly what I'd like. To number the subparts, I am currently using:  \renewcommand{\labelenumii}{\arabic{enumii}.}   However, this produces  1. 2. ...    and what I'd like it to be is   1.1 1.2 ...    Is there anyway to do this?
925
I have the following code  \begin{align} s'(t) &amp;= -\beta s(t) i(t)\\ i'(t) &amp;= \beta s(t) i(t) - \gamma i(t)\\ r'(t) &amp;= \gamma i(t), \end{align}   and I want to enclose this with a bracket like a case, but maintaining the numbered equations.