{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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205 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} ...
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5k views

No Counter Theorem1 is defined

I got an exception in the following latex code: "No Counter Theorem1 is defined", what is the problem? \documentclass[conference]{IEEEtran} \newtheorem{definition}[theorem1]{Definition} ...
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868 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
152 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
345 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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61 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
110 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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251 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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164 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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464 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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703 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
2k 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 ...
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32 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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303 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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134 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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471 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
104 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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199 views

Problem regarding Errors after Theoremdefinition using thmtools

I am currently hunting for errors in my template and these two I cannot solve after reading the log and researching: First: ! Argument of \strip@prefix has an extra }. <inserted text> ...
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456 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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726 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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1answer
859 views

wrapfigure in theorem-like environment

The following code does not create a wrapfigure within the thm environment. Is that because the latter is a list? \documentclass{book} \usepackage{amsthm} \usepackage{wrapfig} \theoremstyle{plain} ...
6
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1answer
680 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
2k views

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
362 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 ...
6
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1answer
1k views

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
144 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
606 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 ...
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353 views

Understanding differences between newtheorem and newenvironment

The difficulty that I am having is that I make a newtheorem: \newtheorem{definition}[theorem]{Definition} It however seems to act nearly the same as with newenvironment: ...
6
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1answer
170 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
233 views

Equation Counters in and outside Theorems

I am trying to setup the counters so that the equations and theorems increment by section and there is no overlap between equation and theorem numbering. I also would like to be able to number ...
6
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1answer
312 views

Weird behavior of \theoremstyle

I just noticed something weird of the \theoremstyle command. Here is the code of a sample document: \documentclass{article} \usepackage{amsthm} \theoremstyle{plain} \newtheorem{thm}{Theorem}[section] ...
6
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1answer
189 views

Different numbering scheme per chapter [duplicate]

I would like to change the numbering scheme for my theorems per chapter. That's because I have smaller and bigger chapters. Bigger chapters need subsections for proper structuring, and so my theorems ...
6
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1answer
700 views

Beamer newenvironment for theorems

I'm trying to define a new environment for theorems and I'm using this code: % Theorem box \pgfdeclarelayer{background} \pgfsetlayers{background,main} \tikzstyle{thmbox} = [inner sep=1em] ...
6
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2answers
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placement of QED symbol on numbered equation line

This question is both on LaTeX and on mathematics writing style; I hope that's still apropriate here. I have a proof that ends with a (right) numbered equation, and I'm pondering about where to put ...
6
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3answers
2k views

Footnote doesn't appear when put into a “definition” environment

When I try to put a footnote into a definition environment (or theorem, etc.) it fails, whereas it works well in plain text... How can I fix it? (N.B. I use thmbox, I don't know if this have an ...
6
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1answer
6k 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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3answers
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Tweaking \theoremstyle

Well I want to do is when LaTeX writes Theorem at the new line instead of the left side of the page it be a little indented. In other words I want it to start from a little bit to the right.
6
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1answer
71 views

Failure of \text within theorem environment

I have an equation within the statement of one of my theorems. Within this equation, I have some text to name a function. However, when this equation appears within the theorem environment, the ...
6
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1answer
265 views

Theorem and lemma sharing counter with mdframed and cleveref

Problem Essentially I've got the same problem described in Cleveref with counters with same name: I've got theorems, lemmata and corollaries all sharing the same counter, and when referencing them ...
6
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1answer
212 views

Subnumber equations within theorem environments but keep them intact otherwise

I want to number my equations in a manner similar to this. However, what I want is that when the equation is not within a theorem environment, there should be normal numbering 1,2,3,4. However, each ...
6
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2answers
839 views

Footnote marker placement in heading of theorem/definition/etc.

I have a definition, and a footnote which refers to the whole definition.  So I’d ideally like an output looking something like: Definition 1.53.   A footnote is a small aside, usually ...
6
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1answer
745 views

Overfull \hbox produced by ntheorem subtitles

I switched from using the standard AMS theorem package to ntheorem so I can put alternative end marks on theorem environments (I want my examples to have an end mark, but not the same one as proofs). ...
6
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1answer
178 views

List of equations in separate pdf [closed]

I am communication with my coauthors via email. This time, I am the author, so I send them the PDF file of the document, and they send me corrections. Then I'd like to implement these corrections. ...
5
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2answers
10k views

Theorem environment - line break after label [duplicate]

Possible Duplicate: ntheorem environment with indentation Skipping line after “Proof” in proof environment \begin{theorem}[label] The theorem text. \end{theorem} I want to ...
5
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2answers
198 views

How can I avoid the changing of v to υ when writing lemmas?

I'm using variables u, v, w in a lemma. However my latex compiler changes v to υ which then makes it difficult to distinguish between u and υ. Why does it do this and how can I avoid it from ...
5
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2answers
170 views

Hide content to show later

My question appeared about this egreg's answer: http://tex.stackexchange.com/a/210564/15256 I have a list of exercise-answers but I don't want to show the answers immediately but after till I'll pull ...
5
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2answers
634 views

New ideas for writing a thesis [closed]

As many of us, I am willing to write a thesis full of maths, fancy environments and all that. Each time I investigate the internet for ideas I find myself ending on the same websites with boring ...
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2answers
2k views

How to number equations within theorem-like environments

I want to enumerate equations within theorem-like environments. Example: \documentclass[a4paper,10pt]{article} \usepackage{amsmath,amsthm} \newtheorem{theo}{Theorem}[section] % \begin{document} ...
5
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2answers
976 views

How to make equations, figures and theorems use the same numbering scheme

It was asked a while ago how to make equation use the same counter as a theorem for example and one solution was to make the theorem counter use the equation instead by using ...
5
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3answers
95 views

how to change the font of the number after theorem

I want to change the font of the number to \itshape, for example, I want to get Theorem {\itshape 1.1}. Is there any way to do it in the theorem environment