{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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61 views

continuous numbering of theorems for the whole article

In the code \newtheorem{thm}{Theorem}[section] what should stand in place of section to get continuous numbering (simply Theorem 1, Theorem 2, etc.) for the whole text?
7
votes
2answers
78 views

Problems with theoremref

I'm having some problems with the theoremref package. Basically, instead of giving me as output something like "Lemma 1.1.1", where "Lemma" is the name of the theorem, it gives me something like "lem ...
5
votes
1answer
157 views

How to change theorem numbering style in one chapter only?

I want to change numbering theormn and lemma in one chapter in thesis without change other chapters. Namely numbering (theormn and lemma) in one chapter is different from another chapter. How to ...
10
votes
1answer
150 views

Numbering theorems in the left margin

My question is similar to this and this. I would like to have the theorem number in the left margin (0.6em spacing to the main text) and the Name 'Theorem' should be justified to the main text. The ...
6
votes
1answer
160 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: ...
3
votes
1answer
344 views

Changing the color of theorem headings

I have a theorem environment, and I would like: The text color of Problems and their contents to be a custom color (defined as `db' below) The text color of Solutions to be a custom color (defined ...
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vote
0answers
66 views

Starting a theorem or a proof with an equation and vertical spacing

Is it bad practice to begin the statement of a theorem or of a proof with an equation? If it is acceptable, what is your opinion on the resulting spacing in the three cases, in the code below? In the ...
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0answers
41 views

numbering of theorems in chapters [closed]

I want to write some papers in Math but I have some problems. when I wrote the first chapter it appears Theorem 1, Lemma 1, when I wrote the second chapter it appeared Theorem 3, Lemma 2. How can ...
3
votes
1answer
124 views

Vertical spacing around theorem environment

Consider this answer from karlkoeller: \documentclass[danish]{article} \usepackage{babel} \usepackage{color} \usepackage{amsthm,thmtools} % Colors. \definecolor{section_color}{rgb}{0.35,0.0,0} ...
6
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1answer
107 views

Using thmtools: numbering with asterisk

I would like to repeat a theorem number with an added asterisk. That is, the original theorem is: Theorem 1. Lorem ipsum... And I would like the analogue theorem to be: Theorem 1*. Lorem ipsum...
7
votes
1answer
343 views

Define proof environment in thmtools

I'm using thmtools for fancy-looking math environments. But I don't know how to redefine proof environment. I cannot find such topics in its documentation. This is my LaTeX code snippet. ...
6
votes
1answer
193 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 ...
9
votes
1answer
169 views

Remove numbering of unreferenced theorems

Can theorems, lemmas, etc., be automatically displayed without numbers if not referenced (like \mathtoolsset{showonlyrefs} for equation tags)?
0
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1answer
183 views

Natural deduction like proof

I'm not sure what the right word is for this kind of proof (in the picture): It is some kind of combination of natural deduction and normal math proofs. I'm wondering how I could do this in LaTeX. ...
7
votes
2answers
84 views

Reference-able custom section numbering

I am writing some lecture notes from a class that I have on Monday, Wednesday, and Friday. What I would like to do is organize them by sections defined by the week and the day, e.g. 1M, 1W, 1F, 2M, ...
4
votes
1answer
209 views

thmbox with normal font and section numbering

How can i use "normal font" for definitions and "italic" for remarks (and similar environments like them) in thmbox environment declaring some commands. Also i need numbering as "section" or ...
4
votes
1answer
200 views

List of theorems with thmtools not working - Missing \endcsname inserted

I am trying to generate a list of all equations in a document. I have searched and it seemed a good solution would be to use the thmtools, which can generate a list of all theorems(if im correct). ...
3
votes
1answer
81 views

Description definitions and ntheorem

I want to have inline listings in description items, so I used this very nice answer. Unfortunately this hackery destroys my theorem environments with error something's wrong--perhaps a missing \item ...
4
votes
1answer
52 views

Strange error related to theorem name (XeTeX)

Trying to have a theorem with [name=Dominio e codominio dell'operatore $D^{\vct{q}}$,label=thm:oss:DomCodomDq] gives the following error: The error is given by the following MWE: ...
2
votes
1answer
115 views

Lists of Theorems (XeLaTeX)

I've found out how to use the thmtools package to make lists of theorems. My questions on this are: Adding [name=xxx,label=thm:...] after \begin{yyy} (xxx is a title for the theorem, ... a label ...
7
votes
1answer
175 views

Multiple lists of theorems with different titles (any TeX, in my case XeLaTeX)

I've found out how to use the thmtools package to make lists of theorems. My questions on this are: How do I change the title, given that \renewcommand{\listoftheoremname}{...} gives a LaTeX ...
1
vote
1answer
165 views

How to define a command that could generate similar environments just as \newtheorem does?

It's well known that the LaTeX built-in command \newtheorem could generate a series of the theorem environments that are similar: they share the same theme of layout style but differ in their name and ...
3
votes
1answer
58 views

Bold claim environment through local layout in LyX

I would like to create a new bold "Afirmação" ("Claim" in portuguese) environment through "Local Layout" in LyX (I don't want to create a new layout file). So I went to Document -> Settings -> Local ...
2
votes
1answer
93 views

How can I automatically typeset a list of (theorem-like) definitions?

I've defined two custom types of theorem-like environments: definition and example. I now want to automatically typeset a list of such environments present in my document. The output I'd like to get ...
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1answer
137 views

How to define numbered theorem, definition at ConTeXt ?(ConTeXt)

I have problem about define numbered like theorem, definition, corrollary etc at ConTeXt ? You can see like this my screenshot and my code (sorry, i copy and paste from other document) : and my ...
4
votes
1answer
3k 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} ...
4
votes
1answer
108 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 ...
3
votes
1answer
60 views

Name referencing for arbitrary text?

In my TeX file I have a something like this: \newcommand{\head}[2]{ \textbf{#1 \imp:} \textit{#2}\\ } \newcommand{\definition}[1]{ \head{Definition}{#1} } \newcommand{\lemma}[1]{ \head{Lemma}{#1} } ...
5
votes
1answer
991 views

Controlling numbering of theorems in Beamer

I have a theorem that is too long for one frame. As \allowframebreaks does not work within the \theorem environment, I am trying to find a workaround. I can simply end the theorem environment on one ...
4
votes
1answer
81 views

Listings environment within another environment

\newtheorem{alg}{Algorithm}[subsection] \begin{alg}\label{alg:1} \begin{lstlisting}[frame = single, breaklines = true, numbers = left] test code \end{lstlisting} \end{alg} How can I prevent the ...
5
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0answers
49 views

Repeat a Theorem [duplicate]

For my thesis I have to repeat my theorems, not just the number but the exact wording of the Theorems. I found the question How to repeat the content of a quote (e.g. introduction+conclusion) without ...
3
votes
3answers
150 views

Changing theorem number systems mid document

I have a numbering system setup for most of my document using: \newtheorem{theorem}{Theorem}[section] \newtheorem{lemma}[theorem]{Lemma} \newtheorem{corollary}[theorem]{Corollary} Which produces ...
6
votes
2answers
272 views

How to change the font size of all theorem environments?

I have several theorem environments: \newtheorem{theorem}{Theorem} \newtheorem{definition}{Definition} \newtheorem{proposition}{Proposition} etc. and I want to change them so that they all use ...
2
votes
1answer
65 views

How to combine thmmarks with addtag for \[\]?

I have the problem, that I have quite a few equations in my text. As I am oftenly unsure if I will need them later as a reference, I searched for a way to avoid exchanging \[...\] with and equation ...
4
votes
1answer
98 views

How to create an unnumbered theorem?

I'm looking for a way to create a new theorem without numbering. I found Theorem without numbering and tried the accepted answer, but I get the error "Command * already defined". This is the code I'm ...
4
votes
1answer
186 views

Axiom 1 and 1' in LyX

I'm using LyX with "Theorems (AMS, numbered by type)" and "Theorems (AMS-extended, numbered by type)" modules. I would like to have the following output: Axiom 1. Lorem. Axiom 1'. Ipsum. Is there a ...
4
votes
1answer
72 views

achieve a theorem like construct without newtheorem

I am trying to achieve a theorem like representation in my beamer presentation as shown. Currently I am defining a newtheorem env for each such construct in preamble, and then using that, as: %in ...
2
votes
1answer
119 views

Theoremstyle with line break but non italic text

I use the theorems (from the amsthm-package) to specify definitions, examples and so on.. I want them to do two things: 1) line break after the label 2) non italic text within the theorem! I ...
2
votes
1answer
80 views

Number of newtheorem overlaps with newtheorem in the Appendix

I have the following code: \documentclass[a4paper,12pt]{article} \renewcommand{\proofname}{\textbf{Beweis}} \newtheorem{Satz}{Satz}[section] \newtheorem{code}[Satz]{MATLAB-Code} \begin{document} ...
5
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1answer
217 views

Can we remove the ( ) bracket from Theorem 1.2.1 ( [7])

Can we remove the ( ) bracket from the environment like Theorem 1.2.1 ( [7]).
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0answers
120 views

Why is newtcbtheorem not working while tcbmaketheorem does? [closed]

EDIT: It was simply a matter of outdated package versions. On a mac there are those useful commands sudo tlmgr update –self and after that sudo tlmgr update –all. The following throws the error ...
3
votes
1answer
136 views

Indicator at end of theorem

I'm writing a text with some very long theorem-environments in it and I find the italicised theorems visually not pleasing when they are rather longish. So I'm using the definition theorem style most ...
2
votes
2answers
530 views

\begin{problem} analogue to \begin{proof}

I recently learned about \begin{proof} ... \end{proof}, which is a good environment to work in. My question is whether there exists a similar environment to state a problem, or whether I can write ...
4
votes
2answers
138 views

Italicizing of amsthm package

I'm using the amsthm package, and I noticed that a remark is automatically italicized, while a theorem and a proposition are not. What other keywords have their content automatically italicized by ...
3
votes
2answers
106 views

How to have indented text in ntheorem environment without a newline at the beginning?

I would like to have an indented paragraph inside a ntheorem environment where the first line is not indented. Using the quote-environment inside ntheorem lets the paragraph start with an ugly ...
1
vote
1answer
456 views

Consecutive number of theorems, propositions, etc

I'm using \usepackage{amsthm} \newtheorem{theorem}{Theorem} \newtheorem{proposition}{Proposition} The numberings of Theorem and Proposition are not consecutive (I get Theorem 1 followed by ...
2
votes
1answer
80 views

How can I change the typeface used in my theorem environments

I know I can change the properties of theorem environments (using \newtheoremstyle, as shown below), but how can I change the font type from Computer Modern to Times New Roman? That change should be ...
2
votes
0answers
148 views

How to set the bold font of the keyword Definition using IEEEtran without introducing package ntheorem?

I am writing a paper with the recommended template IEEEtran.sty. IEEEtran has its own theorem environment such as definitions, theorems, axioms, corollaries, lemmas, and so on. I want to set the bold ...
6
votes
1answer
148 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 ...
2
votes
2answers
136 views

Difficulty modifying an array environment

I have an array that I had past help on and now I am attempting to modify that array. However, when doing so, parts of my "theorem" keep getting shifted to the next line. Here is a MWE: ...