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选题[tech]: 20200615 LaTeX Typesetting – Part 1 (Lists)
sources/tech/20200615 LaTeX Typesetting - Part 1 (Lists).md
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[#]: collector: (lujun9972)
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[#]: translator: ( )
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (LaTeX Typesetting – Part 1 (Lists))
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[#]: via: (https://fedoramagazine.org/latex-typesetting-part-1/)
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[#]: author: (Earl Ramirez https://fedoramagazine.org/author/earlramirez/)
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LaTeX Typesetting – Part 1 (Lists)
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======
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![][1]
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This series builds on the previous articles: [Typeset your docs with LaTex and TeXstudio on Fedora][2] and [LaTeX 101 for beginners][3]. This first part of the series is about LaTeX lists.
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### Types of lists
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LaTeX lists are enclosed environments, and each item in the list can take a line of text to a full paragraph. There are three types of lists available in LaTeX. They are:
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* **Itemized**: unordered or bullet
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* **Enumerated**: ordered
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* **Description**: descriptive
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### Creating lists
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To create a list, prefix each list item with the \_item_ command. Precede and follow the list of items with the \_begin_{<type>} and \_end_{<type>} commands respectively where <type> is substituted with the type of the list as illustrated in the following examples.
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#### Itemized list
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```
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\begin{itemize}
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\item Fedora
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\item Fedora Spin
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\item Fedora Silverblue
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\end{itemize}
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```
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![][4]
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#### Enumerated list
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```
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\begin{enumerate}
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\item Fedora CoreOS
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\item Fedora Silverblue
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\item Fedora Spin
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\end{enumerate}
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```
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![][5]
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#### Descriptive list
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```
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\begin{description}
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\item[Fedora 6] Code name Zod
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\item[Fedora 8] Code name Werewolf
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\end{description}
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```
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![][6]
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### Spacing list items
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The default spacing can be customized by adding \_usepackage{enumitem}_ to the preamble. The _enumitem_ package enables the _noitemsep_ option and the \_itemsep_ command which you can use on your lists as illustrated below.
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#### Using the noitemsep option
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Enclose the _noitemsep_ option in square brackets and place it on the \_begin_ command as shown below. This option removes the default spacing.
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```
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\begin{itemize}[noitemsep]
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\item Fedora
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\item Fedora Spin
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\item Fedora Silverblue
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\end{itemize}
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```
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![][7]
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#### Using the \itemsep command
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The \_itemsep_ command must be suffixed with a number to indicate how much space there should be between the list items.
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```
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\begin{itemize} \itemsep0.75pt
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\item Fedora Silverblue
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\item Fedora CoreOS
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\end{itemize}
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```
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![][8]
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### Nesting lists
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LaTeX supports nested lists up to four levels deep as illustrated below.
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#### Nested itemized lists
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```
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\begin{itemize}[noitemsep]
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\item Fedora Versions
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\begin{itemize}
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\item Fedora 8
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\item Fedora 9
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\begin{itemize}
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\item Werewolf
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\item Sulphur
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\begin{itemize}
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\item 2007-05-31
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\item 2008-05-13
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\end{itemize}
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\end{itemize}
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\end{itemize}
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\item Fedora Spin
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\item Fedora Silverblue
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\end{itemize}
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```
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![][9]
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#### Nested enumerated lists
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```
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\begin{enumerate}[noitemsep]
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\item Fedora Versions
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\begin{enumerate}
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\item Fedora 8
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\item Fedora 9
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\begin{enumerate}
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\item Werewolf
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\item Sulphur
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\begin{enumerate}
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\item 2007-05-31
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\item 2008-05-13
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\end{enumerate}
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\end{enumerate}
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\end{enumerate}
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\item Fedora Spin
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\item Fedora Silverblue
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\end{enumerate}
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```
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### List style names for each list type
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**Enumerated** | **Itemized**
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---|---
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\alph* | $\bullet$
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\Alph* | $\cdot$
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\arabic* | $\diamond$
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\roman* | $\ast$
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\Roman* | $\circ$
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| $-$
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### Default style by list depth
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**Level** | **Enumerated** | **Itemized**
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---|---|---
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1 | Number | Bullet
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2 | Lowercase alphabet | Dash
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3 | Roman numerals | Asterisk
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4 | Uppercase alphabet | Period
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### Setting list styles
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The below example illustrates each of the different itemiszed list styles.
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```
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% Itemize style
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\begin{itemize}
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\item[$\ast$] Asterisk
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\item[$\diamond$] Diamond
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\item[$\circ$] Circle
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\item[$\cdot$] Period
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\item[$\bullet$] Bullet (default)
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\item[--] Dash
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\item[$-$] Another dash
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\end{itemize}
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```
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There are three methods of setting list styles. They are illustrated below. These methods are listed by priority; highest priority first. A higher priority will override a lower priority if more than one is defined for a list item.
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#### List styling method 1 – per item
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Enclose the name of the desired style in square brackets and place it on the \_item_ command as demonstrated below.
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```
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% First method
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\begin{itemize}
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\item[$\ast$] Asterisk
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\item[$\diamond$] Diamond
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\item[$\circ$] Circle
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\item[$\cdot$] period
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\item[$\bullet$] Bullet (default)
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\item[--] Dash
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\item[$-$] Another dash
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\end{itemize}
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```
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#### List styling method 2 – on the list
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Prefix the name of the desired style with _label=_. Place the parameter, including the _label=_ prefix, in square brackets on the \_begin_ command as demonstrated below.
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```
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% Second method
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\begin{enumerate}[label=\Alph*.]
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\item Fedora 32
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\item Fedora 31
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\item Fedora 30
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\end{enumerate}
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```
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#### List styling method 3 – on the document
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This method changes the default style for the entire document. Use the \_renewcommand_ to set the values for the labelitems. There is a different labelitem for each of the four label depths as demonstrated below.
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```
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% Third method
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\renewcommand{\labelitemi}{$\ast$}
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\renewcommand{\labelitemii}{$\diamond$}
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\renewcommand{\labelitemiii}{$\bullet$}
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\renewcommand{\labelitemiv}{$-$}
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```
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### Summary
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LaTeX supports three types of lists. The style and spacing of each of the list types can be customized. More LaTeX elements will be explained in future posts.
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Additional reading about LaTeX lists can be found here: [LaTeX List Structures][12]
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--------------------------------------------------------------------------------
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via: https://fedoramagazine.org/latex-typesetting-part-1/
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作者：[Earl Ramirez][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://fedoramagazine.org/author/earlramirez/
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[b]: https://github.com/lujun9972
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[1]: https://fedoramagazine.org/wp-content/uploads/2020/06/latex-series-816x345.png
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[2]: https://fedoramagazine.org/typeset-latex-texstudio-fedora
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[3]: https://fedoramagazine.org/fedora-classroom-latex-101-beginners
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[4]: https://fedoramagazine.org/wp-content/uploads/2020/06/image-1.png
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[5]: https://fedoramagazine.org/wp-content/uploads/2020/06/image-2.png
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[6]: https://fedoramagazine.org/wp-content/uploads/2020/06/image-3.png
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[7]: https://fedoramagazine.org/wp-content/uploads/2020/06/image-4.png
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[8]: https://fedoramagazine.org/wp-content/uploads/2020/06/image-5.png
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[9]: https://fedoramagazine.org/wp-content/uploads/2020/06/image-7.png
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[10]: https://fedoramagazine.org/wp-content/uploads/2020/06/image-8.png
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[11]: https://fedoramagazine.org/wp-content/uploads/2020/06/image-9.png
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[12]: https://en.wikibooks.org/wiki/LaTeX/List_Structures
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