{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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Incorrect hypothesis counter

The hypotheses counter seems to work incorrectly. All hypotheses are numbered with a 1. What exactly am I doing wrong? I have the following code: \documentclass[12pt]{article} \usepackage{amsthm} ...
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Reference to List Items in Theorem Environment with Label Type “Theorem”

I'm trying to set up references to list items in theorem environments. Using the thmtools and the cref-package I am able to reference theorem environments, such that the theorem type, e.g. theorem, ...
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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 ...
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amsthm: Theorems, Lemmas numbered backwards

What I want \newtheorem{thm}{Theorem} \begin{thm} A \end{thm} \begin{thm} B \end{thm} \begin{thm} C \end{thm} Ends up generating Theorem 1 A. Theorem 2 B. Theorem 3 C. What I want instead: ...
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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, ...
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Custom proof environment

How to define another proof environment, say, for the "Proof of lemma"? Also, how to make it without the qed box? (I need one with qed box, and another one without qed box.) I'm using amsbook ...
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Numbering theorems within chapters

I've recently asked a question: Chapters in TeX regarding working with chapters in tex. I have since learned that I must use documentclass report for the purposes of my document. However, now all of ...
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\textbf inside a lemma

I have defined lemma and use it as follows: \newtheorem{theorem}{Theorem}[section] \newtheorem{lemma}[theorem]{Lemma} ... \begin{lemma} abc_\textbf{indice} \end{lemma} It turns out that the indice ...
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Getting the number of a chapter-numbered theorem but without the chapter number

Suppose in Chapter 3 I have Theorem 3.17. I need to get the "17", NOT the "3.17" which would readily be obtained using \label then \ref. How do i do that? Edit: (Probably a more relaxing condition): ...
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530 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. ...
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Fancy box around equation

I am trying to get my equations to show up like: This is my attempt thus far: \documentclass[11pt,fleqn]{book} \usepackage[top=3cm,bottom=3cm,left=3.2cm,right=3.2cm,headsep=10pt,a4paper]{geometry} ...
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How to remove space surrounding a colored theorem box?

This is a follow-up question of Combining spacebelow with shaded parameter in thmtools package. Bug?. How can I get rid of the space above the theorem box? If I comment out the mdframed=... line it ...
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Own command to create new environment

The following code isn't very minimal but I hope you will be able to understand the code. \setcounter{errorcontextlines}{999} \documentclass{scrartcl} \usepackage{lipsum,ntheorem} ...
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\newmdtheoremenv-environment unnumbered

I would like to have a \newmdtheoremenv environment without any number, like I get it from \newtheorem*. How can I do this? This is my \newmdtheoremenv environment at the moment. ...
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Numbered Definitions, Theorems in beamer

How to get numbered Lemmas, Definitions, Theorems and so on in beamer?
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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} ...
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How to change QED sign for theorem classes

I'm writing an article which contains some quite long proofs, some of which include claims with proofs of their own. I dealt with that by adding a claim environment using \newtheorem, but there's a ...
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Adding text to a different part of the document

I'm writing a LaTeX document at the moment which has problems (which are created in a {theorem} environment) for the reader in it. I'd like to put solutions to those problems in the end of the ...
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107 views

Change from “Theorem 10.1” to “10.1 Theorem” [duplicate]

Possible Duplicate: Numbering theorem-like environments">Numbering theorem-like environments How can I change the order in which theorems are displayed? I want 10.1 Theorem and not Theorem ...
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How can I eliminate the vertical extra space before and after the proof-environment?

consider the following code: \documentclass{scrartcl} \usepackage[ngerman]{babel} \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage{graphicx} \usepackage{amsmath} \usepackage{amsthm} ...
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Indent Theorem like \hangindent, but for multiple paragraphs

I would like to create a theorem style which indents the theorem exactly like a \hangindent would do, expect that the indention should continue for all paragraphs of the theorem. For example: ...
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593 views

Align the names in \listtheorems (ntheorem)

Question: How do I align the names of theorems in ntheorem list of theorems? Screenshot: Screenshot: (photoshopped) Context: I am using the ntheorem package to typeset a list of theorems and ...
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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 ...
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Spacing before and after with \newtheoremstyle

I want to define my own theorem style for examples. I want them to be numbered the same way as theorems (so Example 2.4 follows Theorem 2.3); I want them to be formatted exactly the same as theorems ...
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163 views

Theorem without counter (any TeX)

I often use theorems on LaTeX and have defined various kinds of them. At times, however, it is best not to define a specific theorem which would otherwise be a once-in-a-long-time usage, as for ...
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How to remove brackets from the optional title in amsthm?

This is a follow-up question of this question. when using \begin{theorem}[Open mapping]...\end{theorem}, I received Is it possible to change the format into "Theorem: Open Mapping."(boldface)? ...
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538 views

Multiple tikz path fading in multiple directions

I'd like to create a theorem decoration. Here's a quick take on one: \documentclass{article} \usepackage{tikz} \newcommand{\theoremname}{Theorem} \newcounter{theorem} ...
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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 ...
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815 views

Enumeration in theorem environment

I am puzzled with a formating question. I was asked to change that the enumeration gives me italic numbers in the theorem environment to non-italic ones. How can customize enumeration, such that it ...
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Custom list of hypotheses in table of contents format

The Context: I am writing a multi-chapter scientific report with many numbered hypotheses. I have created a custom hypothesis environment in the preamble: \newtheorem{hypothesis}{Hypothesis}[chapter] ...
6
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92 views

How to change margins in enunciation (theorem-like environment)?

I'd like the margins in the example environment in the code below to be slightly indented. What is the easiest way of achieving this? It's supposed to apply to all example environments. In the ...
6
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308 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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265 views

Numbering theorems in a chapter with no sections

Say I have an index such as: 1. Chapter 1.1 Section 1.2 Section 2. Chapter 3. Chapter and I number my theorems as \newtheorem{theorem}{Theorem}[section] with the last theorem in 1.2 being ...
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200 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 ...
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Spacing for \listtheorems in ntheorem

Q: How do I get my theorem number and name to not overlap each other in my list of theorems? This is basically the same question as "Spacing control for listtheorems". But the solutions mentioned ...
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Babel (French) does not translate the theorem environment in Beamer class

I'm using the beamer class, with the following preamble: \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage[french]{babel} \usepackage{ae,aecompl,aeguill} \usepackage{amsthm, amsmath, ...
6
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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 ...
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\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} ...
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Numbering theorems in the appendix by adding the appendix letter in front/after the theorem number

Can someone please tell me how to make definitions, theorems etc. in the appendix look like Definition A1 or Definition 1A (an "A" should be somewhere), if the appendix is "numbered" with A (meaning ...
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220 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?
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Using \newtheorem

Edited to include complete code, as suggested: Here is what the preamble of my main file looks like: \documentclass[12pt]{report} \usepackage{epsfig} \usepackage{upmathgrad2} ...
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Creating list of for \newtheoremstyle

I want to create an list of theorems much like the list of figures, but couldn't find a packacke or tutorial to solve my problem. I tried this http://texblog.org/2008/07/13/define-your-own-list-of/ ...
6
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How can I change the spacing before theorems with amsthm?

I have a spacing problem. Whenever I include a theorem environment, \begin{theorem}\end{theorem}, the theorem appears very close to the previous line. The spacing is much less than the normal spacing ...
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Beamer newtheorem translation

Consider the following MWE: \documentclass{beamer} \usepackage{lmodern} \usepackage[T1]{fontenc} \usepackage[utf8]{inputenc} \usepackage[spanish]{babel} \uselanguage{Spanish} \languagepath{Spanish} ...
6
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3answers
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How can I number theorems in introduction without section counter and later with it?

I would like to have my theorems numbered in the following way. Theorem 1. Blah-blah Theorem 2. More blah-blah Section 1. Theorem 1.1. Special blah Theorem 1.2. More special ...
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707 views

Parts numbering in Proofs

I am using proof environment from amsthm to type proofs. Some proofs are long, so it would be nice to split them into numbered parts. I have defined new theorem environment called proofpart for that ...
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Theorem environment numbered according to subsection

I was wondering if there was a way to modify the theorem environment so that it interacted with sections/subsections as follows: \section{} \subsection{} \begin{ex} Whatever \end{ex} ...
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No Counter Theorem1 is defined

I got an exception in the following latex code: "No Counter Theorem1 is defined", what is the problem? \documentclass[conference]{IEEEtran} \newtheorem{definition}[theorem1]{Definition} ...
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Equation numbering restart for every theorem

How to make the equation numbering restart after every proof? One alternative is to use \numberwithin{equation}{theorem} but it shows the chapter and theorem number, like (5.5.1). I want the ...
6
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1answer
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How to put Theorem Numbers in Boxes?

I'm using amsthm and amsbook. I was wondering how to put theorem numbers in rectangular boxes, both when they first appear as well as when citing them. Here is a picture of what it looks like now: ...