title: The csthm Package linter-yaml-title-alias: The csthm Package date created: Wednesday, September 11th 2024, 18:20:56 date modified: Friday, January 17th 2025, 17:29:11

aliases: The csthm Package

The csthm Package

A Comprehensive Set of Theorem Environments for Computer Science

The csthm package provides a comprehensive collection of theorem-like environments specifically designed for use in computer science documentation. It features a range of customizable theorem styles, distinct visual markers for different types of content, integrated support for cross-referencing, and extensive customization options. This README provides detailed examples, usage guidelines, and an overview of all available environments and features in the package.

Package Overview

The csthm package offers a robust and flexible solution for typesetting theorems, definitions, proofs, and related content typically found in computer science literature. The package provides a variety of specialized environments, each with distinct visual markers and formatting styles suited to different types of content.

Key features include

• Distinct visual styles for different content types, including theorems, definitions, proofs, and more.
• Customizable theorem headers and QED symbols.
• Optional integration with the cleveref package for enhanced cross-referencing.
• Specialized environments tailored for theoretical computer science content.
• Support for both numbered and unnumbered variants of all environments.

Installation

The csthm package can be installed via your TeX distribution’s package manager or downloaded directly from CTAN:

• https://ctan.org/pkg/csthm

Basic Usage

To use the package, simply include it in the preamble of your document:

\usepackage{csthm}

If you require integration with the cleveref package for enhanced cross-referencing, load the package as follows:

\usepackage[cleveref]{csthm}

Environments

The csthm package provides a wide range of theorem-like environments. Each environment is associated with a distinct visual style, marked by a specific bullet symbol. The package supports both numbered and unnumbered versions of each environment, with the unnumbered variants achieved by appending an asterisk (*) to the environment name (e.g., theorem*).

Complete List of Environments

Note: All environments (except proof and case) have unnumbered versions available by adding an asterisk (*) to the environment name (e.g., theorem*).

Mathematical Theorems

These environments represent core theoretical results and are marked with a black triangle ($\blacktriangleright$):

\begin{theorem}
This is a sample theorem environment.
\end{theorem}

\begin{assumption}
This is a sample assumption environment.
\end{assumption}

\begin{axiom}
This is a sample axiom environment.
\end{axiom}

\begin{claim}
This is a sample claim environment.
\end{claim}

\begin{conjecture}
This is a sample conjecture environment.
\end{conjecture}

\begin{corollary}
This is a sample corollary environment.
\end{corollary}

\begin{fact}
This is a sample fact environment.
\end{fact}

\begin{hypothesis}
This is a sample hypothesis environment.
\end{hypothesis}

\begin{lemma}
This is a sample lemma environment.
\end{lemma}

\begin{property}
This is a sample property environment.
\end{property}

\begin{proposition}
This is a sample proposition environment.
\end{proposition}

Definitions and Protocols

These environments are used for definitions, notations, problems, and protocols, marked with a black square ($\blacksquare$):

\begin{definition}
This is a sample definition environment.
\end{definition}

\begin{notation}
This is a sample notation environment.
\end{notation}

\begin{problem}
This is a sample problem environment.
\end{problem}

\begin{protocol}
This is a sample protocol environment.
\end{protocol}

Remarks and Examples

These environments provide additional explanations and clarifications, marked with a hollow triangle ($\vartriangleright$):

\begin{example}
This is a sample example environment.
\end{example}

\begin{note}
This is a sample note environment.
\end{note}

\begin{remark}
This is a sample remark environment.
\end{remark}

Highlights and Important Content

These environments emphasize key concepts, tasks, or points, marked with a hollow square ($\square$):

\begin{exercise}
This is a sample exercise environment.
\end{exercise}

\begin{highlight}
This is a sample highlight environment.
\end{highlight}

\begin{important}
This is a sample important environment.
\end{important}

\begin{keypoint}
This is a sample keypoint environment.
\end{keypoint}

Special Environments

The proof environment provides a custom QED symbol, and the case environment allows for enumerated cases:

\begin{proof}
This is a sample proof environment with a custom QED symbol.
\end{proof}

\begin{case}
\item Case 1: This is the first case.
\item Case 2: This is the second case.
\item Case 3: This is the third case.
\end{case}

Customization

The csthm package offers extensive customization options.

Accent Color

To change the accent color used for theorem headers and symbols:

\setaccentcolor{darkblue}  % or
\renewcommand{\accentcolor}{darkblue}

QED Symbols

Customize the QED symbol used in proof environments:

\renewcommand\qedsymbol{$\scriptstyle\color{\accentcolor}\blacksquare$}

Implementation Notes

Dependencies

The following packages are required for the correct functionality of the csthm package:

• amsmath - Provides advanced mathematical typesetting features.
• amssymb - Adds additional mathematical symbols.
• amsthm - Basic theorem functionality.
• enumitem - Customizes list environments.
• thmtools - Provides advanced theorem tools.

Optional dependencies include:

• hyperref - Enables hyperlinked cross-references.
• cleveref - Provides enhanced cross-referencing features.

Version History

• v1.0 (2024/01/01): Initial release.
• v1.1 (2024/05/15): Added support for cleveref.
• v1.2 (2024/08/31): Released on CTAN.
• v1.3 (2025/01/16): Current version:
  • Added starred versions of all environments.
  • Enhanced theorem styling.
  • Added new environments.
  • Improved customization options.

License

This work may be distributed and/or modified under the conditions of the LaTeX Project Public License, either version 1.3c or later. The latest version is available at LaTeX Project Public License.

Contact and Support

For bug reports, feature requests, or general feedback, please contact:

• Email: agnidatta.org@gmail.com
• GitHub: https://github.com/agnidatta/csthm
• CTAN: https://ctan.org/pkg/csthm