{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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2
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1answer
109 views

Is it possible to make the body text in a proof environment a bold red instead of black?

Is it possible (using ntheorem) to change the default text colour of the proof environment (of course black) to a boldface red? I am typesetting an Analysis book, and a friend and I are looking [for ...
6
votes
3answers
149 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?
3
votes
2answers
226 views

cleveref doesn't use correct capitalized name if used with amsthm?

It seems that the cleveref package does not capitalize properly when referring to a newtheorem if both \crefname and \Crefname have been defined. Or is it just me? Here is my MWE: ...
2
votes
1answer
241 views

Proposition command doesnt work

Please refer to the below code: \documentclass[a4paper,11pt]{report} \usepackage{a4wide} \usepackage{amsmath} \usepackage{amssymb} \usepackage{graphicx} \usepackage{url} \usepackage{fixltx2e} ...
1
vote
1answer
181 views

Back to the line after Remark and theorem

I write the following code: \newtheoremstyle{examplestyle}{10mm}{10mm}{\slshape}{2pt}{\bfseries}{\newline}{10mm}{} \theoremstyle{examplestyle} to be able to get theorems look like this ...
3
votes
1answer
154 views

Need help with modifying ntheorem environments

I am trying to modify some of the theorem environments defined in ntheorem. I wanted the definitions in my document to be boxed the way in which ntheorem does for the framed theorem classes which they ...
2
votes
1answer
51 views

Combining tagging with ntheorem

I would like to combine the tagging package with ntheorem to obtain ntheorem-environments that are tagged. A minimal example would be: \documentclass{scrartcl} \usepackage{tagging} ...
2
votes
1answer
89 views

Need help with a cases structure inside an enumerated list

I need to type an enumerated list (for a math document) that contains several lines for which I need to have said lines have a curly brace at the end with a text description for them. The best I can ...
3
votes
1answer
212 views

Multiline Inferences / Rules / Axioms in Bussproofs

I have a proof that I need to set in LaTeX, and to do so I am using the bussproofs package. However my proof has large amounts of free text in it, which makes the proof overly wide. Is there a way to ...
3
votes
2answers
102 views

Reference entire title of a Theorem, not just its number

Say I have \begin{theorem}\label{thm:Fermat} This is a theorem about Fermat. \end{theorem} and the output is Theorem 5.2. This is a theorem about Fermat. Now I want to reference it by ...
2
votes
1answer
92 views

Referencing enumerated observations in proof

I am writing a rather complicated proof (graph theory/algorithmics), which contains a number of listed observations that are going to be referenced later in the course of the proof. The observations ...
1
vote
0answers
37 views

Creating arabic and alpha theorem numbering [duplicate]

For my Thesis I am stating a number of Theorems (Working Propositions actually). Using the theorem environment I do get some thing like: WP1 My first WP I create this by using \begin{WP} my ...
4
votes
1answer
212 views

Problem with environments, arabic and tikz

Here a question also about my last topic. I want to create an environment that put a pretty box around my theorem and its title. Here is a code with the desired output : \documentclass{report} ...
4
votes
1answer
157 views

problems with tikz and arabi package

I have some problems and I hope you can help me. When I put a tikzpicture and use the arabi package, the picture is not displayed in the dvi or pdf file, and this without a single error. I have a ...
2
votes
1answer
531 views

Beamer: Grouping environment counters

In beamer, when I use \setbeamertemplate{theorems}[numbered] but this groups them all as the following. What I want is theorems, lemmas and other environments to have different counters such as the ...
7
votes
1answer
573 views

Duplicating the amsthm proof environment

I am currently writing up some lecture notes and would like to have therefore a "\solution" environment which should work basically as the amsthm \proof environment, just writing "Solution." instead ...
3
votes
2answers
151 views

PDF bookmarks for thmtools' theorems

I would like to add PDF bookmarks for some classes of theorems declared using thmtools and I couldn't find a beautiful way to do it so far. The best idea I have been able to come up with was to add ...
2
votes
2answers
417 views

Using amsthm: changing Theorem options and break line

Using amsthm, is it possible to change the settings as follows ? Theorem/number/Name/cite : body I tried to write: \documentclass{article} \usepackage{amsthm} \newtheoremstyle{mystyle}% name ...
5
votes
1answer
88 views

How to put reflectbox in newtheorem correctly?

Firstly: sorry for my English, I hope, that you'll understand me. Secondly: I have to use \reflectbox in my newtheorem environment. Problem is, that when I put for example \reflectbox{D}, letter D is ...
1
vote
1answer
81 views

How can I change the spacing around definitions with amsthm?

I am wondering how I may change spacing around definition environments. I have seen the answer posted for the same question about theorems, \makeatletter \def\thm@space@setup{% ...
2
votes
1answer
444 views

Defining cross-reference names for custom theorem environments in cleveref

I am concerned with the difference between this working example \documentclass{article} \usepackage{amsthm} \usepackage[capitalise]{cleveref} \newtheorem{thm}{Theorem} \begin{document} ...
1
vote
1answer
523 views

Why am i getting a counter error while defining a Theorem environment?

I have this in a latex file: \documentclass[conference]{IEEEtran} \newtheorem{theorem}{Theorem} and at some point i have this: \begin{theorem} foo \end{theorem} but i am getting this ...
3
votes
1answer
90 views

How to redefine definition theoremstyle to use a letter instead of a number

I need to redefine the theorem style. Is it possible to change the numbers to letters? \theoremstyle{definition} \newtheorem{problem}{Problem} \begin{problem} fff \end{problem} \begin{problem} ccc ...
0
votes
0answers
101 views

nopagebreak between rule and custom theorem env

I'm making a custom theorem environment. Here's a minimal example of my problem, with some filler text borrowed from the GPL: \documentclass{scrbook} \usepackage[dvipsnames]{xcolor} ...
6
votes
0answers
302 views

How to create a framed proof attached to a theorem?

I am trying to create a customized "proof" environment attached to a theorem. It looks like this: So there is first the theorem, and then a gray bar starts on the inner margin. It ends, when the ...
14
votes
1answer
294 views

Theorem with separate tikz environments for header and body

My initial question: I'm writing my lecture notes in LaTeX and used some customized theorem environments with amsthm so far. Now I wanted to redesign those theorems with help of tikzpicture. That's ...
2
votes
0answers
83 views

Custom environment splitting between pages [closed]

I created a custom environment for theorems using mdframed package: \newtheorem{theorem}{Theorem} \newtheorem{twierdz}[theorem]{Twierdzenie} \newenvironment{twierdzenie} ...
1
vote
0answers
84 views

What's the correct way to place theorems and pictures side by side?

Okay so I have a definition using the amsthm theorem environments, and a tikzpicture which I want to see side by side. The material inside the definition is not too big, so I expect the final height ...
6
votes
1answer
118 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: ...
3
votes
1answer
207 views

how can I get a period right after a theorem number when using \swapnumbers?

I am trying to mimic lecture notes formatted like this: http://ocw.mit.edu/courses/mathematics/18-01-single-variable-calculus-fall-2005/lecture-notes/lecture_25.pdf I would like to format a theorem ...
0
votes
2answers
123 views

A Theorem solution that works with Nath

I'd like to use some theorem environment. But I'm using the nath package, which is unfortunately incompatible with every solution I've found. I don't need anything very fancy, just the following ...
2
votes
1answer
219 views

Using chapter instead of section number with amsthm

I'm trying to number my examples, definitions, theorems, etc. in the form Chapter#.example#. However, the amsthm package only seems to provide sectional numbering, which I don't like. Does anyone ...
3
votes
1answer
62 views

Using Grouping to Limit the Scope of a \newtheorem in the Combine Document Class

I am combining a set of articles using the combine document class. However, use of the \newtheorem command in the individual articles causes an error, when these environments have already been defined ...
4
votes
0answers
74 views

Break theorem style in amsart [duplicate]

I want to make a theorem's header stands in a separated line like (as style break in ntheorem) Examples 1 (1) GL(n) (2) SL(n) I copied the solution from Theorem formatting, but it doesn't work ...
3
votes
1answer
95 views

thmbox color bar

I would like to ask if anyone knows if it is possible to change the bar color in the thmbox package. One can change the thickness of the bar but not the color. \usepackage{thmbox} ...
1
vote
1answer
3k views

Beamer: how to make theorem-like block (with free title)

I often use CambridgeUS, the only negative part about is that when I put theorems in blocks, it's not see clear where that theorem ends. So I would like the body of the theorem to be in italic. ...
4
votes
2answers
145 views

How change type of remark title in amsthm?

How can I easily change the typeface of remark titles in amsthm without having to define a completely new style using \newtheoremstyle. More precisely, I have the following code: \usepackage{amsthm} ...
6
votes
1answer
296 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 ...
3
votes
1answer
139 views

Line break in list in indented theorem

I'm trying to make an indented theorem environment as in A theoremstyle with complete indentation using amsthm. Here's a minimal (non-)working example: \documentclass{article} \usepackage{amsthm} ...
1
vote
1answer
190 views

Custom Numbering in Derivation / Proof Environment

Just a quick background, I am writing a thesis, which has theorems (proofs and derivations) and possibly a few other 'theorem' type environments. The code in this question actually works fine, it is ...
2
votes
1answer
104 views

getting numbers for theorems, propositions,

I want to number theorems (or propositions,...) as Theorem 1.1 and Theorem 1.A simultaneously in a text? In fact, I don't know how to mark some theorems (or propositions,...) as Theorem 1.A, Theorem ...
6
votes
1answer
85 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 ...
7
votes
2answers
119 views

Wrong vertical space in theorem environment closed by an equation

It happens that LaTeX, to fill a page vertically, adds extra spaces around equation environments (and other vertical spaces). Now suppose I have a theorem environment (using amsthm) which ends with an ...
1
vote
0answers
142 views

restatables and \listoftheorem

I am using the restatable environment from the thm-restate package ofthmtools. I am also using \listoftheorems command to give me a list of the theorems. However, my restatable theorem is appearing ...
14
votes
3answers
557 views

What style/font is this?

Does anyone know how to create numbering for Theorem/lemma/… like this one in the image below, also any idea about the font name?
2
votes
1answer
80 views

How to adust margin in listoftheorem

I have some definitions and theorems inside subsubsubsection. When latex generates the listoftheorems, the last digit of the subsubsubsection overlaps the first letter of the name of the theorem, ...
1
vote
1answer
73 views

How to ignore proofs? [duplicate]

I'd like to print a shorter version of my paper without all the proofs, I'm thinking about something like \renewenvironment{proof}{\begin{comment}}{\end{comment}} but that activates the comment ...
5
votes
2answers
125 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 ...
4
votes
1answer
726 views

How do I reference in appendix a theorem given in the body?

I have a theorem given in the body text of a paper, say Theorem 2 with label {theorem-abc}. I would like to provide the proof of this theorem in the appendix. 1) How do I cross-reference this theorem ...
6
votes
2answers
189 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} ...