{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.

learn more… | top users | synonyms

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
817 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
votes
1answer
37 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
141 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
17 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
215 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
113 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
81 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
126 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
votes
1answer
6k views

Numbered Definitions, Theorems in beamer

How to get numbered Lemmas, Definitions, Theorems and so on in beamer?
2
votes
1answer
50 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
193 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
97 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
votes
1answer
308 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
205 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
votes
0answers
60 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
188 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
46 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
44 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
99 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
104 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
438 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
94 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
129 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
673 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
290 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
157 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
vote
0answers
120 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
61 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
723 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
96 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
115 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
160 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
vote
0answers
74 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
votes
4answers
5k views

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, ...
1
vote
1answer
101 views

Theorem style - define indentation

I have a real issue with defining my theorem style. I need indentation after the theorem, but cannot achive it. I google for hours and didn't find a solution. Hope you can help me. By the way, I'm ...
1
vote
2answers
119 views

How to start new numeration of theorems with every chapter?

What I want? [that way of numbering] 1 How to do squats Theorem 1. Put your barbell on your shoulders. Theorem 2. Squat. 2 How to do bench press Theorem 1. Lean on a bench. Theorem 2. Push. ...
0
votes
0answers
64 views

Hyperlinking theorems in smfart

Edit: The class smfart is one of several classes created by the Société Mathématique de France for typesetting mathematics. Here is its CTAN page, where it lies under smflatex, and here is the ...
5
votes
2answers
126 views

Corollary counter in SVmono

When using the predefined Theorem and Corollary commands using the Springer template svmono, the theorem and corollary counters are different. How can I make the counters match? The desired effect ...
4
votes
2answers
202 views

Proclaim command with multiple paragraphs

In page 131 of "TeX for the Impatient", it says the followings for proclaim command: \proclaim ⟨argument⟩.␣⟨general text⟩\par This command ``proclaims'' a theorem, lemma, hypothesis, etc. It sets ...
1
vote
1answer
63 views

LaTeX is truncating my theorem reference numbers. How do I correct this?

I will have a Theorem, Lemma or Corollary and it will be numbered, say for example, 2.2.3 ... Unfortunately, every reference back to ANY Theorem, Lemma or Corollary simply state 2.2 ... It seems to be ...
3
votes
1answer
88 views

Subtheorems with alphabetic number

I would like to create a list of tasks using LaTeX. Therefore I created a theorem called task. For some tasks I would like to create additional subtheorems using alphabetic numbering. Currently my ...
5
votes
2answers
422 views

How to remove the word “Proof:” from the environment proof?

I am writing a paper and I will prove a theorem in an appendix because the proof is lengthy. When I use the following code, \documentclass[journal]{IEEEtran} \usepackage{amssymb, amsmath, amsthm, ...
3
votes
2answers
98 views

Equation incl. number on the same line as theorem environment

I have this: \begin{lemma} \begin{equation} L_b \circ L_a = L_{L_b(a)} \circ L_b. \end{equation} \end{lemma} and I would like the equation to be on the same line as the lemma, with a number ...