{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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Citing inside theorem header

How do I create something like this without getting any errors? \begin{thm}[\cite[page 10]{ABC2011}] ... \end{thm} I tried putting various things into {...} brackets, but not eliminating any ...
2
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1answer
111 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. ...
2
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1answer
60 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 ...
15
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4answers
626 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 ...
1
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2answers
45 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} ...
16
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2answers
10k views

How to rename theorem (or lemma) in Beamer to another language?

I'm Malay user. I want to rename the theorem tag in Beamer. Does anyone know how to do it? When the document class is article or book, I can simply modify the preamble as follows: ...
6
votes
2answers
156 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 ...
6
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2answers
1k 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} ...
1
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1answer
142 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} ...
4
votes
1answer
53 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 ...
6
votes
2answers
833 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 ...
2
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1answer
39 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
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1answer
146 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} ...
1
vote
1answer
18 views

Latex stops referencing theorem environment

I'm resuming a project after some weeks. Now, when I reference some theorem, the result are that bored question marks (??). For theorems that already exists, refence to that works well, but ...
3
votes
1answer
52 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 ...
5
votes
1answer
227 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
114 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
84 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
136 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} ...
7
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1answer
6k views

Numbered Definitions, Theorems in beamer

How to get numbered Lemmas, Definitions, Theorems and so on in beamer?
2
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1answer
51 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}?
0
votes
1answer
91 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. ...
4
votes
2answers
197 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
99 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 ...
6
votes
1answer
69 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
332 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
2answers
221 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 ...
0
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0answers
61 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
193 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 ...
2
votes
1answer
47 views

Putting table in a theorem environment sends it to the very end of the document

I'd like to illustrate my \begin{example} \lipsum[2] \end{example} with a table yet adding the table to the environment sends it to the very end of the document: \documentclass{article} ...
0
votes
1answer
45 views

cleveref, ntheorem and lj-igpl

The cleveref package doesn't work properly with the lj-igpl package. There are many discussions about cleveref, however, none of them solves my problem. I am using the ntheorem package as well, but ...
2
votes
3answers
101 views

Using a theorem-based environment inside a list

When I include a theorem-based environment right after the start of a list item, a linebreak is inserted that looks a little funny. \documentclass{article} \usepackage{amsthm} ...
5
votes
1answer
105 views

Remove a dot from a style!

I'm using the code below to create a theorem style. The style, however, leave a dot after the title in the title box. I want to remove that. Any ideas? \documentclass{article} ...
5
votes
1answer
73 views

Newtheoremstyle head aligned with top of tabularx

Here's an example : \documentclass[12pt]{report} \usepackage{amsmath, amssymb, amsthm} \usepackage{tikz} \usetikzlibrary{shadows} ...
9
votes
3answers
457 views

Enumerating inside a proposition and inside a proof

I have one problem with enumerating. The symbols for items look differently when the enumerating is done ''inside'' propositions from the enumerating done ''inside'' a proof. The code ...
3
votes
1answer
101 views

Indentation of list in a theorem environment

Typically, the body in a theorem environment begins on the same line as the heading. If the text begins with a list, the first line looks a little funny due to the indentation before the label. I'm ...
2
votes
2answers
134 views

Referencing Definition by Name and Optional Argument

I have the following MWE: \documentclass{article} \usepackage{amsthm} \usepackage{hyperref} \newtheorem*{definition}{Definition} \begin{document} \section{Section Definitions} ...
5
votes
2answers
2k views

Lyx 2.0 Formatted references to theorem/lemma/claim environments

In Lyx 2.0, I'm trying to use a formatted reference to a claim, but I cannot get the "formatted" part, i.e. I can't get it to typeset "claim" as well as the claim number. I'm using modules "Theorems ...
3
votes
3answers
713 views

Enumerate inside a theorem environment

I use the enumitem package: \usepackage[shortlabels]{enumitem} And I put some numeration like this in a theorem environment with \theoremstyle{plain}: \begin{prop} We have ...
6
votes
2answers
322 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 ...
4
votes
1answer
165 views

Theorem Numbering in beamer

I have separate tex files for my different lecture slides. I am trying to number my theorems by the lecture number. I am using the following: \setbeamertemplate{theorems}[numbered] But it starts ...
1
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0answers
129 views

Custom theorem numbering … and extend to lemma etc [closed]

In Custom theorem numbering @egreg provided a way to custome theorem numbering: \documentclass{article} %\usepackage{amsthm} %% uncomment to see the difference \newtheorem{innercustomthm}{Theorem} ...
3
votes
1answer
62 views

Assigning Theorem number from ref

I would like to know if there is an easy way to the following. I have a statement in later part of an article, say Theorem G with \label{Thm:G}. In the introduction I would like to state this ...
1
vote
1answer
738 views

the selected document class requires external files that are not available - LyX portable

I'm using LyX portable on windows, and I get this message the selected document class article(hebrew) requires external files that are not avialable. ... the following prerequisites are ...
2
votes
1answer
97 views

Why is thmtools and mdframed not working with parskip

I have the following MWE: %!TEX TS-program = XeLaTeX %!TEX encoding = UTF-8 Unicode % DEFINITIONS =================================================== \documentclass[ 12pt, a4paper, ...
9
votes
3answers
4k views

Skipping line after “Proof” in proof environment

Like the OP in Is it possible to skip the first line in a theorem environment?, I would like to be able to skip a line after the word "Proof" so that the first line of the proof is actually part of ...
4
votes
1answer
120 views

Avoid parentheses around optional header material in theorem environment

I would like to get rid of the around the optinal header material in my theorem environment. Here is a MWE \documentclass{beamer} \begin{document} \setbeamertemplate{theorems}[numbered] ...
1
vote
0answers
162 views

Faint text after new theorem [closed]

This code using \newtheorem produces faint text afterwards. What's the remedy? \documentclass[xcolor=dvipsnames]{beamer} \usetheme[height=9mm]{Rochester} \setbeamertemplate{items}[ball] ...
1
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0answers
75 views

Mark end of Theorem [duplicate]

In this answer Palatino text font is used together with the AMS Euler (eulervm) math font. The following statement is reasonable: Note also that because the "Euler" fonts have an upright rather ...
22
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4answers
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How to make the optional title of a theorem bold with amsthm?

I use the code mentioned in Title of the theorem: \begin{theorem}[The title] Some statement \end{theorem} However with amsthm the optional title -- above: "The title" -- is neither bold nor italic, ...