Questions tagged [proof-package]

This tag is meant for packages to display and typeset proofs. This can be proof environments like being defined from `amsthm` with `\newtheorem` or more algorithm-like scenarios. The package `proof` is an example.

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17 views

I get an error when I use proof environment

I am writing a paper using the Journal of Physics Conference Series's template which can be obtained through this link: https://drive.google.com/drive/folders/17dfkKChHJOHbx1HT-uVMZsA41l2IthiW I get ...
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14 views

Custom Proof Environment - Proof by Cases

I'm a student currently in a Discrete Math course, and I write all of my homeworks in LaTeX. I was wondering if anyone had a template that could be used with proofs by cases, counterexamples, etc. I ...
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2answers
44 views

I changed “proof” to “solution” in environment but it's not updating? I think it has to do with babel?

\usepackage [english]{babel} \usepackage [autostyle, english = american]{csquotes} \MakeOuterQuote{"} \addto\english{\renewcommand*{\proofname}{Solution}} I successfully change my double quotes ...
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1answer
24 views

Logicproof Package and Axiomatic proof, issues with Layout

I am using the logicproof package in order to write proof in axiomatic style. The problem is that, if a line of the proof is too long, the whole block exceeds page margins. Here is a the code: \...
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2answers
30 views

The square symbol does not appear in the end of proof

\documentclass{article} \usepackage{amsthm} \renewenvironment{proof}{{\bfseries Proof.}}{} \renewcommand{\qedsymbol}{$\blacksquare$} \newtheorem{theorem}{Theorem}[section] \begin{document} \begin{...
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1answer
75 views

On making a real analysis book

I am in the process of making a book for my own and not to be published of course about introductory real analysis, my main concern is about the format that I have to set in order to ensure maximum ...
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46 views

Seeking a Good Latex Package for Formal Proof in Mathematics

In most textbooks and theoretical papers, proofs are presented in natural language. Although it is impossible to present proofs in pure object language in our daily writing, presenting proofs line by ...
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1answer
42 views

Changing qed for separate proofs [closed]

I am using Latex, and I can't share my specific code for privacy reasons, but I want to remove the qed symbol for separate proofs, but not change every proof in the document. The only thing is don't ...
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1answer
94 views

Nice alignment across nodes in logic proof trees typeset with forest

In this answer, user cfr offers the following code which gives output as in the following image: \documentclass[border=11pt]{standalone} \usepackage[linguistics]{forest} \usepackage{amsmath,amssymb} \...
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58 views

How to continue the proof in the next slide

How to continue the contents of a slide? I want to do a beamer presentation of a proof of a theorem. But the problem is I can't fit the proof of the theorem in a single slide as its a big proof. Also ...
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13 views

Consistent spacing with proof environment in level-1 and level-2 enumerate

\documentclass[letterpaper,12pt]{article} \usepackage{empheq} % loads »mathtools«, which in turn loads »amsmath« \usepackage{enumitem} \usepackage{graphicx} \usepackage{fancyvrb} \...
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1answer
32 views

Changing the formatting of the Theorem and Proof environment

I ask the question directly in the code. \documentclass[ 11pt, ]{scrbook} % KOMA-Script book \usepackage[T1]{fontenc} \usepackage[linedheaders,parts,...
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1answer
35 views

need a square sign the same size as proof's environment square

There is a square sign in the end of proof environment. I proved something outside of proof environment. Because I had to have 'Proof of Theorem 3', I need to put a square as the same size as proof ...
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2answers
99 views

Spacing in proof environment with \item

\documentclass[letterpaper,12pt]{article} \usepackage{empheq} % loads »mathtools«, which in turn loads »amsmath« \usepackage{enumitem} \usepackage{graphicx} \usepackage{fancyvrb} \...
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33 views

Aligning proof rules

The following code: \documentclass[10pt,journal,a4paper]{IEEEtran} \usepackage{proof} \usepackage{float} \begin{document} \begin{figure} \infer[\textnormal{axiom} \, C] { C }...
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3answers
40 views

Left align the “Proof.” at the beginning of the proof environment containing a Tikz picture

Here is some code that should run, \documentclass{article} \usepackage{amsthm} \usepackage{tikz} \begin{document} \noindent\textbf{Identity 1.} \textit{For $n \geq 2$,} \[ {\color{blue} {n \choose 2}...
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1answer
33 views

Share long proofs in beamer to many frames [duplicate]

Hi everyone please I am writing a proof in beamer with \begin{proof} \end{proof} but the proof is too long so I can't have it in one frame, I wanted to share the proof to many frames but it didn't ...
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1answer
68 views

Why is my proof not working with a matrix?

I was writing up a proof on a LaTex article, which required me to utilise a number of matrices in it. However, I quickly discovered that when I hit \end{proof}, at the end of my proof, it would not ...
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156 views

Where to find good templates for mathematical proofs?

Where can we find very good examples of templates for mathematical proofs using LaTeX? Specially if we would aim to send something for the Annals of Mathematics? Let's say, by hypothesis, that we ...
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1answer
43 views

How can I use the semantic and proof-at-the-end packages simultaneously?

I would like to use the semantic package to write inference rules, and I would also like to use the proof-at-the-end package to put proofs of my theorems in the appendix. However, when I use these two ...
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1answer
72 views

How do I line-wrap justifications in a proof?

How would I line-wrap justifications in the proof/align environment in LaTeX? E.g., I have a justification for an equation, but the justification veers off into the page and doesn't line wrap. I'd ...
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26 views

Two different `proof' environments with different headings and qed symbols

In my book, I am using two different proof environments. The original proof environment in the AMS packages has been modified to the following: \renewcommand{\qedsymbol}{$\blacksquare$} \makeatletter ...
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1answer
108 views

Labelling a section or “subproof” within a proof

Does anyone have ideas on labelling a section in a proof that can be referenced later? Just to be clear I would like to do a "subproof" in a proof environment.
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27 views

Redefining the symbol for the end of proof to \blackbox [duplicate]

In a .cls file, which is referenced by my latex code, I have the following definition for the end of proof symbol: \newcommand\qedsymbol{\hbox{\rlap{$\sqcap$}$\sqcup$}} \newcommand\qed{\relax\ifmmode\...
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1answer
49 views

Proof environment in the svmult class

I'm using the svmult class. If I write \begin{proof}[Proof of Proposition 1] what I get is "Proof(Proof of Proposition 1)" How can i get "Proof of Proposition 1" only? Thank you for the ...
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1answer
35 views

Trying to split frame without repeating Title

Below I am trying to split a frame without repeating the title and in a particular place but it doesn't seem to be happening. \begin{frame}[allowframebreaks]{A result about multiples} \large ...
2
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2answers
199 views

Missing $ inserted despite inserting $

I have a problem with \infer{$\forall x\in A. P(x)$}{$\forall x\in A.(\forall y\in A.x\xrightarrow{+}y\implies P(y))\implies P(x)$} I have looked at this answer but couldn't find it helpful
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1answer
157 views

End of proof box is not shown

When I use the proof environment, the output does not show the tombstone informs3 class. The class can be download here by selecting INFORMS Journal on Computing Style Files. I tired the ...
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1answer
153 views

having issue with the proof environment

I am using theorem, lemma,corollary, and proof environments with the following way. \newtheorem{theorem}{Theorem} \newtheorem{corollary}{Corollary}[theorem] \newtheorem{lemma}[theorem]{Lemma} \...
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3answers
202 views

Quantification in the infer command of the proof package

I'm trying to write this inference rule using the infer command of the proof package: For that I'm using the command: $\infer{s = s'}{% R \subseteq A^{\omega} \times A^{\omega} & ...
3
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1answer
115 views

Bussproofs tree will not compile

I have the following proof tree, which latex says is badly specified. Here is the TeX. \documentclass{article} \usepackage{bussproofs} \usepackage{amsmath} \begin{document} \begin{prooftree} \...
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1answer
271 views

How to draw “flag format” lambda derivation diagrams as used in the book Type Theory and Formal Proof: An Introduction

I'd like to draw "flag format" diagrams for lambda derivation as used in the book "Type Theory and Formal Proof: An Introduction". Below is an example in Chapter 2 of the book. How can I do it? Thanks....
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4answers
417 views

How do I reference a custom counter that shows the section number?

I am trying to use the proof environment that comes with the amsthm package. And I would like the proof environment to be numbered, such as the theorem environment for the sake of adding a label, so I ...
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1answer
40 views

Adapting a document to tglat2e style and its conflicts with amsthm and caption

I am trying to adapt my document to the tglat2e-style of this journal. Please take a look at this MWE: \documentclass{tglat2e} \let\proof\relax \let\endproof\relax %This trick is due to David ...
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2answers
308 views

Empty proof as standalone

I've made an empty proof as a joke (the worst kind of visual proof). It works fine when I use the article document class, \documentclass{article} \usepackage{amsthm} \begin{document} \begin{proof} \...
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1answer
135 views

Horizontal space within proof

I am typesetting a few proofs in LaTeX that have multiple cases, and sometimes I wish to indent each case to make my proof clearer (with about the same amount of horizontal space as a \qquad). I have ...
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0answers
54 views

Scaling Box for Exercises

I've been using the following code to include numbered exercises in a book I'm writing using the amsbook class: \newcounter{exercise} \newsavebox{\mybox} \newenvironment{exercise} {\...
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1answer
52 views

Package lplfitch and “Overfull \hbox”

I get a huge lot of Overfull \hbox using Fitch diagrams, package lplfitch. MWE: \documentclass{article} \usepackage{graphicx} \usepackage{lplfitch} \begin{document} \begin{figure} \noindent\fitchprf{...
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1answer
53 views

How can I write a “definition” like this?

The theorem of the picture is written in bold, I mean: Theorem 1.2 (Pythagorean theorem). I want to write a definition with that format. Also, it would be better if it's written with small capitals. ...
2
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1answer
231 views

Square at the end of proof without “proof” at the beginning

I'm writing a paper and I would like to have a square at the end of each proof without having the "Proof." that comes automatically with the \begin{proof} ... \end{proof} thing because I don't want ...
2
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1answer
183 views

Define double environments

TLDR; How can I define a "double" environment like in theorems/proofs (with an optional proof)? I'm defining a small library that is supposed to behave more or less like theorems/proof environments (...
2
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1answer
434 views

Ultimate proof at the end/in appendix: different sections, with references to proof/theorem, restate, and synctex

I saw lot's of different posts/answers to put the proof at the end, but none of them fully convince me. Indeed, I'd like to have the following: a way to put the proofs in different sections: some ...
2
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1answer
33 views

Proof environment with long header causes many problems. How to avoid them?

Suppose we have defined a lemma environment with the amstheorem package. And suppose the proof environment is available via the ams packages. Please consider this example. \begin{lemma} \label{lem:...
4
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1answer
138 views

prooftrees tree nodes on different line

While trying to write a tableaux proof tree with prooftrees, I had some difficulty with putting single and branching nodes on the same line. \documentclass{article} \usepackage{prooftrees} \begin{...
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2answers
86 views

In the proof (see picture), Similarly line is not aligned. How can I align this line?

Code: \begin{proof} $ \begin{align*} T(1) &= \theta(1), \\T(0) &= \theta(1), \\T(n) &= T(n-1)+T(n-2)+\theta(1) &&n\geq2 \\T(n) &= T(n-1)+T(n-2)+c ...
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0answers
224 views

apxproof changing appendix title

I need to use the apxprrof package because i have proofs that I want to show only in the appendix and this package does exactly what I need. However, I also need to place some tables (not all) in the ...
2
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0answers
393 views

how do I display very large proof trees (bussproofs, ebproofs, tikz's tree library)

I am looking at different options to typeset proof trees. I have asked a more general question and run into some issues. In particular I am trying to understand how to display very large proof trees, ...
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1answer
4k views

Problem with proof environment

I've written a proof in LaTeX, and I looked up how to use the proof environment. From what I read, it should start with "Proof:" and end with \qed, but the PDF shows no changes. It simply displays the ...
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1answer
165 views

\resizebox within \begin{align}… \end{align} not working while using \intertext{

I have some very wide equations within a proof environment which I want to contain in a two-column document, I thus think of using \resizebox{1.3\columnwidth}{!}{% to archive that generate this error ...
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1answer
48 views

Aligning all the equations but not aligning texts within a 2 column-proof environment while?

I need you help me with hacks or tricks to include my MWE in a two-column page with the proof environment with its mathematical being aligned and also consist texts for explanation. The problem is ...