Tagged Questions

{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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1answer
28 views

Theorem text rendered after figure instead of before

I'm trying to place a figure inside a theorem. However, in the following example, the "test" text is rendered under the figure, and not above as it should be. What can I do to fix that? Minimum ...
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2answers
177 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 ...
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24 views

Repetition of theorem number

I have problem with my theorem numbering. Currently I have definition theorem 1.1 theorem 1.2 definition definition theorem 1.4 lemma 1.4 lemma 1.4 theorem 1.4 theorem 1.4 but I would like ...
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1answer
45 views

How to define different colors for different theorem-like environments in beamer

After reading section 12.4 Theorem Environments from beameruserguide I understand that all theorem like environments (theorem, lemma, corollary, ...) except example use same beamertemplate which means ...
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2answers
39 views

QED at end of Theorem (definition-style) Environment

Apologize if this is a duplicate. \documentclass[12pt]{extbook} \usepackage{amsmath, amssymb, amsthm} \usepackage{etoolbox} \theoremstyle{definition} \newtheorem{example}{Example}[section] ...
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1answer
39 views

How do I disable the theorem counter for \autoref when using an extended theorem name?

I’m writing a paper, and I need to quote a theorem by a mathematician whom we’ll call Genius. This theorem already goes by a well-known name, say Genius’ Special Theorem. I’d like to cite this theorem ...
5
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1answer
67 views

Transitioning to mathtools - environment proof undefined

I am new to LaTeX and I was using the amsthm package in order to write proofs by using the proof environment: \documentclass{book} \usepackage{amsthm} \newtheorem{theorem}{Theorem} \begin{document} ...
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3answers
323 views

How to make the asterisk a part of a counter?

I am writing a usual article in amsart style using amsthm package to number the theorems. I need to enumerate certain conditions, while two of them have to bear the same number differing only with an ...
5
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3answers
41 views

Cross-reference two numbered environments

Consider the following code: \documentclass[a4paper,12pt]{book} \usepackage{amsthm} \usepackage{hyperref} \theoremstyle{plain} \newtheorem{exercise}{Exercise} \newtheorem{solution}{Solution} ...
3
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1answer
40 views

itemize environment inside theorem

When I have an itemize environment inside a theorem and refer to the theorem later on, the document doesn't point to the right location. For example, consider the following toy example: ...
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0answers
39 views

number exercises

I typed the following exercises: \newtheorem{BB}{\bf Bài tập}[section] \begin{document} \section{abc} \begin{BB} abc \end{BB} \end{document} Results are: Bài tập 1.1 abc I want to leave the ...
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1answer
31 views

Enforcing no hyphenation of the last word in the first line of Definition while keeping the line well-aligned

I am using the IEEEtran theorem environment and \newtheorem{definition}{Definition}[section] to customize the definitions. Generally, I am satisfied with its output: However, for another definition ...
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1answer
34 views

Theorem linebreak in an itemize environment

I'm using the itemize environment to take notes and sometimes I want to add definitions and theorems in the flow. However, amsthm adds a linebreak between the item bullet and the theorem statement, ...
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2answers
45 views

Changing the theorem's title style

I need to change the style of the theorem title ( bold and no ponctuation after the title) : \documentclass[french,a4paper,12pt]{report} \usepackage{babel} \usepackage{graphicx} ...
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0answers
34 views

Framed theorem environment spread across pages

I wanted to put a vertical line in front of examples to make them easier to distinguish from the regular text. For this I used mdframed, and it mostly seems to work. However, if an example happens to ...
4
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1answer
31 views

Why is the space underneath my theorems not showing up?

I styled my amsthm theorems with mdframed. I tried to add some space before and underneath my theorems with skipabove and skipbelow as stated here on page 6. \documentclass{article} ...
4
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1answer
40 views

How to nicely split proofs into different parts?

I often break long proofs into smaller pieces, in order to make it easier to read and understand. I'm doing that by adding a fbox with "Part X: ...". However, this doesn't work out very well all the ...
4
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1answer
33 views

How to prevent my theorems from breaking off at a pagebreak?

I styled the theorems in my document a bit, using the mdframed package. I'm glad with the result, but the frame sometimes breaks off incorrectly. I've created a sample to show you what's going wrong. ...
2
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2answers
58 views

Enumerate: make labels and items aligned left within a theorem

Just what the title says: I want to make an enumerate list in which both the labels and items are aligned to the left. I can currently only get one or the other. Minimal working example: ...
2
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2answers
53 views

Center labels in enumerate within a theorem

Here is a minimal working example, based on this answer: \documentclass{report} \usepackage{amsthm} \usepackage{enumitem} \SetLabelAlign{Center}{\hfil#1\hfil} ...
2
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1answer
113 views

Background colors with mdframed: is this behavior normal?

Introduction With the help of this answer, I tried to define a semi-transparent background for a theorem-like environment. Here is my solution: \documentclass{article} ...
1
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1answer
55 views

Theorem numbering: use dash instead of period

In the following code, my theorem head looks like this: 1.1 Theorem I want it to look like this: 1-1 Theorem MWE: \documentclass{report} \usepackage{amsthm} \newtheoremstyle{theorem} {1em} % ...
5
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1answer
48 views

End mark for unnumbered and continued examples

Consider the following MWE \documentclass{article} \usepackage{amsthm} \usepackage{hyperref} \theoremstyle{plain} \newtheorem{theorem}{Theorem}[section] \theoremstyle{definition} ...
2
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2answers
52 views

Getting Examples to look like Theorems/Lemmas/Corollaries

How do you get a latex document to present example in the same bold type face as you can for theorems/lemma/corollaries?
2
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2answers
83 views

Theorem style like (1.1 Theorem) and custom theorems like (1.2 Intermadiate Value Theorem)

I'm searching for a theorem style like that the one that is used in this book: Elementary Analysis by Ross I've got already most things working, except that I want to get a custom theorem like this: ...
2
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1answer
39 views

pagebreak and amsmath theorem environment issue

In the example below, you'll notice that when a \pagebreak is used right after the theorem, an unwanted vertical blank space is added after the theorem environment while it should not. ...
3
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1answer
49 views

No break line after theorem name in beamer

I have applied the answer of question Theorem content right after theorem name in beamer to my question. I put \normalfont after \inserttheorempunctuation but the result is unexpected. Could you ...
2
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1answer
33 views

How can I apply a custom-defined theorem environment to nested theorems *only*?

In a previous thread, I asked about the possibility of defining a custom theorem environment whose QED symbol would be a boxed version of the theorem's name/number/label. There, I was graciously ...
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2answers
26 views

How to reset counter for un-numbered subsections?

\documentclass{amsart} \newtheorem{theorem}{Theorem}[section] \begin{document} \subsection*{1} \begin{theorem} blah is blah \end{theorem} \begin{theorem} bloo is bloo \end{theorem} ...
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4answers
553 views

How do I use the boxed theorem name as a QED symbol

I'm wondering if there's a relatively simple way to achieve a result similar to the following: In particular, I'd like to be able to assign names and/or numbers to theorems/lemmas/propositions and ...
0
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0answers
31 views

I want “Theorem A.1.” instead of “Theorem Appendix A.1.” in the appendix

I have \newtheorem{theorem}{Theorem}[section] in the preamble. When stating a theorem in the appendix (after \appendix), I get Theorem Appendix A.1. The theorem .... How does one suppress ...
6
votes
2answers
99 views

How do I make all the theorem-alike environments have an ending symbol?

I have a question about making an ending symbol. It is a LaTex-default that every proof environment has an ending symbol. I want to make every theorem-alike environment such as the example ...
1
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1answer
34 views

How to use \theorem?

I don't know why this doesn't work: I'm a beginner in LaTeX and I'm trying a lot to understand this. The code: \documentclass{article} \usepackage[utf8]{inputenc} \usepackage[english]{babel} ...
6
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2answers
143 views

Beamer newtheorem translation

Consider the following MWE: \documentclass{beamer} \usepackage{lmodern} \usepackage[T1]{fontenc} \usepackage[utf8]{inputenc} \usepackage[spanish]{babel} \uselanguage{Spanish} \languagepath{Spanish} ...
4
votes
1answer
44 views

Including a Theorem in a section heading

Within my thesis I am attempting to number the studies listed throughout. I have used a custom theorem style for this: \newtheorem{study}{Study} First Issue I then want to use this within my ...
2
votes
1answer
24 views

complaints of glue length “mu”; amsart; list of definitions

So I have the following MWE: \documentclass{amsart} \usepackage{etoolbox} % Modifications to amsart ToC-related macros... \makeatletter \let\old@tocline\@tocline \let\section@tocline\@tocline % ...
3
votes
1answer
28 views

Line thickness `thmbox`?

I'm using the MWE below to create a color box for my theorems. The box consists of two parts: the horizontal line on top and the rest. I want to be able to adjust the thickness of these two parts ...
3
votes
1answer
77 views

how to use several style for boxed theorem and remark with mdframed?

I have modified this code Issue with mdframed package in order to satisfy my taste: \documentclass[a4paper,10pt]{memoir} \usepackage{xcolor} \usepackage[framemethod=tikz]{mdframed} ...
5
votes
1answer
93 views

Number in newtheoremstyle is not italic

I defined and used a new theormestyle using amsmath package: \newtheoremstyle{standard} {\topsep} % ABOVESPACE {\topsep} % BELOWSPACE {\normalfont} % BODYFONT % \itshape {0pt} ...
3
votes
2answers
104 views

Subsection label appearing within text

I have a document in "book" format (strictly speaking, in an environment defined by the book publisher I am using, the details of which are way beyond my comprehension), and I very much want to have ...
5
votes
0answers
68 views

How to see dependencies between theorems [duplicate]

I have a paper that uses \label for naming theorems, propositions and etc. We say that a theorem, proposition and etc X depends on the theorem, proposition and etc Y if Y is mentioned in the closest ...
1
vote
1answer
61 views

QED sign does not always occur with package ntheorem

I want to construct some theorem-type of environment by using package ntheorem. I have edited the following source codes: \documentclass[A4paper]{article} \usepackage{amsmath} \usepackage{amsfonts} ...
0
votes
1answer
72 views

Chapter No. in Theorem style

I'm using \documentclass{book}. I'm also using the code below to create a theorem style, however, it only puts the title on top. I want to modify the code so that I get => Theorem ch. no. theorem no. ...
2
votes
1answer
42 views

What's the difference between \newtheorem{remark}*{Remark} and \newtheorem{remark}{Remark}?

Does anyone know the differences between \newtheorem{remark}*{Remark} and \newtheorem{remark}{Remark}?
3
votes
3answers
152 views

How to change the way theorems are numbered

I am trying to write a small note in which there are no sections, and the theorems go from 1,2,3. In the following code, for example: \documentclass[12pt]{article} ...
4
votes
2answers
65 views

Changing style of “Proof of…”

In reference to the answer in How to place all proofs automatically in appendix? I would like to change the style of "Proof of..." (proofs put in the end) to bold faces for instance, but I don't want ...
3
votes
2answers
64 views

Appendix section numbering that mimicks theorem numbers?

I have a document with several theorems ("\begin{restatable} \label{thmA}..."). After each theorem I have the statement "see proof in section \ref{sec:thmA:proof}". So my appendix is now a long ...
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0answers
50 views

Theorem Style in text

This is a typographical question as opposed to a tex question. I want to standardise my theorem style when typing in normal text. Some of my theorems have names: Mordell-Weil Theorem, BSD Conjecture ...
3
votes
2answers
166 views

Theorem style with surrounding lines

I'm using \documentclass{book}. I would like to create theorem styles as shown in the picture below but WITHOUT \tcolorbox. For some reason \tcolorbox doesn't work for me. Any ideas? Thanks in ...
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0answers
55 views

How can I make a numbering as for theorems and lemmas for postulate?

We write \begin{theorem} the theorem \end{theorem} for theorems, lemmas, corollaries and so on. For reasons of content I want to do the same for postulates. How?