{theorems} are environments which are commonly numbered. They are extensively used in math texts. Examples of such environments are theorems, corollaries, lemmas, propositions, remarks and definitions. Popular packages are {amsthm}, {ntheorem}, and {thmtools}. Covers discussion on proofs too.

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Babel (French) does not translate the theorem environment in Beamer class

I'm using the beamer class, with the following preamble: \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage[french]{babel} \usepackage{ae,aecompl,aeguill} \usepackage{amsthm, amsmath, ...
6
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4answers
5k views

Custom list of hypotheses in table of contents format

The Context: I am writing a multi-chapter scientific report with many numbered hypotheses. I have created a custom hypothesis environment in the preamble: \newtheorem{hypothesis}{Hypothesis}[chapter] ...
6
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2answers
175 views

How to change margins in enunciation (theorem-like environment)?

I'd like the margins in the example environment in the code below to be slightly indented. What is the easiest way of achieving this? It's supposed to apply to all example environments. In the ...
6
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2answers
655 views

Numbering theorems in a chapter with no sections

Say I have an index such as: 1. Chapter 1.1 Section 1.2 Section 2. Chapter 3. Chapter and I number my theorems as \newtheorem{theorem}{Theorem}[section] with the last theorem in 1.2 being ...
6
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1answer
271 views

Theorem-like definition, without using upshape each time

How can I have theorems and lemmas stated in the default italic font, but definitions and examples in upright font, without having to type the \upshape command within each definition and example? I ...
6
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2answers
452 views

Spacing for \listtheorems in ntheorem

Q: How do I get my theorem number and name to not overlap each other in my list of theorems? This is basically the same question as "Spacing control for listtheorems". But the solutions mentioned ...
6
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2answers
537 views

Numbering theorems within the innermost sectioning environment present at that point in the document?

Here is what I am trying to achieve: Chapter 1. ... Theorem 1.1. ... Section 1.1. ... Theorem 1.1.1. ... Subsection 1.1.1. ... Theorem 1.1.1.1. Is this even possible? If so, how? ...
6
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1answer
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How can I change the spacing before theorems with amsthm?

I have a spacing problem. Whenever I include a theorem environment, \begin{theorem}\end{theorem}, the theorem appears very close to the previous line. The spacing is much less than the normal spacing ...
6
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188 views

Corollary counter in SVmono

When using the predefined Theorem and Corollary commands using the Springer template svmono, the theorem and corollary counters are different. How can I make the counters match? The desired effect ...
6
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2answers
464 views

\newtheorem other language

I've worked in my article with the next code in my preambule: \usepackage[dutch]{babel} \usepackage[amsthm,thmmarks]{ntheorem} \newtheorem{diver}{Theorem} \newtheorem{ex}{Example} ...
6
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1answer
2k views

Numbering theorems in the appendix by adding the appendix letter in front/after the theorem number

Can someone please tell me how to make definitions, theorems etc. in the appendix look like Definition A1 or Definition 1A (an "A" should be somewhere), if the appendix is "numbered" with A (meaning ...
6
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3answers
319 views

Lemmas and sub sections

I want to write a LaTeX code to show, Lemma 1 : x+y=z Lemma 1.1: z-r+t=3 Lemma 1.2: q=r How do I do that?
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2answers
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Creating list of for \newtheoremstyle

I want to create an list of theorems much like the list of figures, but couldn't find a packacke or tutorial to solve my problem. I tried this http://texblog.org/2008/07/13/define-your-own-list-of/ ...
6
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3answers
1k views

Two math sections of the same type in a row?

Whenever I try to create two sections of the same type in a row LyX unites them as if they were one. I write a definition, press ENTER for a new line, and then want to write another definition on that ...
6
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1answer
65 views

Having regular text within a lemma

I want the following lemma: Given k\"ahler metric $g_{\al \overline{\be}}$ with associated Ricci curvature $ \text{Ric} =R_{\al \overline{\be}}$ the Ricci form defined by \begin{equation*} \p ...
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2answers
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Beamer newtheorem translation

Consider the following MWE: \documentclass{beamer} \usepackage{lmodern} \usepackage[T1]{fontenc} \usepackage[utf8]{inputenc} \usepackage[spanish]{babel} \uselanguage{Spanish} \languagepath{Spanish} ...
6
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1answer
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Parts numbering in Proofs

I am using proof environment from amsthm to type proofs. Some proofs are long, so it would be nice to split them into numbered parts. I have defined new theorem environment called proofpart for that ...
6
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1answer
227 views

Theorem environment numbered according to subsection

I was wondering if there was a way to modify the theorem environment so that it interacted with sections/subsections as follows: \section{} \subsection{} \begin{ex} Whatever \end{ex} ...
6
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1answer
979 views

Equation numbering restart for every theorem

How to make the equation numbering restart after every proof? One alternative is to use \numberwithin{equation}{theorem} but it shows the chapter and theorem number, like (5.5.1). I want the ...
6
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1answer
3k views

Theorem content right after theorem name in beamer

When we write a theorem in beamer, by default the theorem name and theorem content are in different lines, like this: |------------------------------------------- |Theorem 1 ...
6
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2answers
2k views

How can I get a line break in a theorem headline?

I have a theorem title, which is longer then the page width. How do I get the title in two lines? \begin{theorem}[this title is to long for one line] the theorem \end{theorem}
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1answer
188 views

How to put Theorem Numbers in Boxes?

I'm using amsthm and amsbook. I was wondering how to put theorem numbers in rectangular boxes, both when they first appear as well as when citing them. Here is a picture of what it looks like now: ...
6
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2answers
608 views

Writing “Proof of . . .” cleanly in svjour3

Perhaps I am spoiled by amsthm, but I rather like being able to freely rename the proof environment, especially when there are intervening statements. For example: Example 1: nice behavior ...
6
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1answer
70 views

Spacing issue in new environment from a theorem

I'm trying to create a theorem environment that I can use to repeat a theorem that has been previously stated in a book but number it the same as the 1st instance. I found some sort of solution: ...
6
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1answer
154 views

Want theorem and equation numbering linked under section

Similar questions have been answered but the solutions didn't seem to give what I need. I would like theorems and equations both to proceed as follows within each section. Say we've begun Section ...
6
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1answer
870 views

Line break in theorem header

I am using ntheorem to define my own environments like this \theoremindent=0cm \theoremheaderfont{\kern-0cm\normalfont\bfseries} \theorembodyfont{\upshape} \theoremstyle{break} ...
6
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264 views

subsection vs Theorem

This a typographical/style question. Inside a subsection (after just one paragraph) I have some theorems (amsmath environment). The word Theorem looks stronger (bold, starting with a capital letter) ...
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1answer
178 views

formulas in bold theorem titles in ntheorem package

I'm not quite sure if this counts as a bug or a feature but I have the following problem with the ntheorem package. The theorem title is bold face, which I like, but in math formulas setting some (or ...
6
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1answer
574 views

Plain enumeration of theorems definitions etc

In my TeX document Theorems, Definitions, Lemmas are enumerated in the following way: Definition 1.1 Lemma 1.1 Theorem 1.1 Definition 1.2 Lemma 1.2 Theorem 1.2 But I would like to have ...
6
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2answers
749 views

Improper alignment of qed-like symbol when using equation to end

I use this code to define a symbol that I put at end of (maths) examples in my file. \newcommand\xqed[1]{% \leavevmode\unskip\penalty9999 \hbox{}\nobreak\hfill \quad\hbox{#1}} ...
6
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1answer
3k views

Vertical space around theorems

I'm working in a document that has double-spacing (yuck!), and I want to establish some standards in order to make the thing look "presentable". Currently, the only environment that has an automatic ...
6
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1answer
1k views

How to avoid double dot in Theorem Head Spec in case of theorem with no name?

I'm using the \newtheoremstyle{name} command to generate a specific theorem head spec in the form of: {\thmname{#1}\thmnumber{ #2}.\thmnote{ #3}} where #1 is Theorem, #2 is 'the theorem number', ...
6
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1answer
101 views

How can I use more than one color in shadethm package?

I know that we can change the default color given in shadethm package using, for example, \definecolor{shadethmcolor}{HTML}{F7F8E0}. But if I want to use different colors for different environments in ...
6
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1answer
419 views

Theorem starting with a list

I want a robust way to handle theorems which starts by a list environment, with the first item being on a new line. I don't want to distinguish between theorems with lists and those without by using ...
6
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2answers
145 views

How to get cleveref to treat separate theorem-types as one?

Introduction I'm using a somewhat complex theorem-environment setup which, perhaps, is finally getting me into trouble. I use memoir, cleveref and ntheorem. There is a global thmcounter that all ...
6
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1answer
533 views

Automatic upright math when text is in italic

This is in a way a follow-up to this question about upright math. I would like to have upright math (essentially variable names) when I use a theorem-like environment with statement in italic. This ...
6
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1answer
117 views

How to refer to the number of an item in an enumerate environment inside a theorem

I have something that looks like this: \usepackage{amsmath} \begin{document} \begin{thm} The following are true: \begin{enumerate} \item \label{foo} Foo \item \label{bar} Bar \item \label{baz} Baz ...
6
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2answers
250 views

Theorem/remark/proposition/etc tagging/labelling

I have been wondering this for years, and never really had so much trouble that I couldn't bear not to know, but now I think I'll just ask and see if anyone knows. It is common practice to label ...
6
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1answer
5k views

Theorem/Definition/Lemma/etc independent numbering in Lyx

I am using the Koma-script book class in Lyx. By default, theorems, definitions, lemmas, and so on, follow the same numbering. So after "Theorem 1" comes "Definition 2", then "Lemma 3", and so on, ...
6
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1answer
615 views

Theorem title formatting

I want to display a theorem title, it is simple: \begin{theorem}[Name] I get Theorem 4.5 (Name). but I don't like the dot at the end. I want it to look like this: Theorem 4.5. (Name) Can you ...
6
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1answer
788 views

amsbook theorem numbering

I want theorems to be labeled of the form Part.Chapter.Section.number so I tried \renewcommand{\thesection}{\Roman{part}.\thechapter.\arabic{section}} \newtheorem{book}{Theorem}[section] ...
6
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2answers
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Numbering a theorem with a letter but not changing numbering of other theorems

I am wondering how to label a theorem in LaTeX using a letter but not changing the numbering of the other theorems. For example, I want Theorem 1.3 to be Theorem A and Theorem 1.4 to remain as Theorem ...
6
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1answer
389 views

Bug in the mdframed package (workaround?)

I've discovered what appears to be a bug in the mdframed package. My goal was to use a package which allows me to create shaded theorem environments which span multiple pages (thmtools does not allow ...
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1answer
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Normal font in theorem when typesetting algorithms

I'm using amsthm and clrscode to typeset algorithms. I'd like to have my algorithms numbered, so I do this: \theoremstyle{plain} \newtheorem{algorithm}[equation]{Algorithm} \begin{algorithm} The ...
6
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1answer
273 views

How to enumerate theorems using letters with amsthm without losing the section numbering?

It seems \renewcommand{\theexample}{\Alph{example}} makes the section numbering disappear. Is there a way to avoid this? \documentclass{article} \usepackage{amsthm} \theoremstyle{definition} ...
6
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1answer
933 views

controlling theorem numbers using llncs style

Is there a way to control the numbering of different types of theorems, when using the llncs style? With the envcountsame parameter, all theorems/definitions/claims use the same counter and get ...
6
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1answer
9k views

Using amsthm but still getting “Environment theorem undefined”

I'm trying to write up all my university theorems and I cant get the theorem environment to work. Here is a mini example of what I'm trying to do. \documentclass[a4paper,12pt]{article} ...
6
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1answer
210 views

Only show \NAME in \listoftheorems

I am using the thmtools package, and I want to modify \listoftheorems to only print the name of the theorem. For example, my document might look something like the one shown below. When I compile this ...
6
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1answer
190 views

Using ntheorem's counter inside theorem statement

I'm using ntheorem package and I would like to use the theorem's counter within the theorem's statement. This is useful when you're defining a special object you wish to reference elsewhere, like: ...
6
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1answer
501 views

using a restatable before it is stated

This question is related to the question at Recalling a theorem, which uses the thmtools and thm-restate packages and the restatable environment to define a theorem that can be re-stated later on. Is ...