Title

Author Some abstract text can go here. Blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah.

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Custom Section 1 Name

This is some text. Blah blah blah. You can still use formatted text like bold and italics. You can use math typsetting, thanks to MathJax. Both inline $m\alpha t \mathcal{H}$ and centered $$e^qua=t_ion\int$$. Custom Subsection 1.1 Name A thing is a thing. Can a remark be a question? text of example text of example Custom Subsection 1.2 Name You can reference a definition like this: A Subsubsection

Custom Section 2 Name

Nouns are words. This lemma is left as an exercise to the reader. A thing is a noun. My english teacher told me so. Proofs can be collapsable. If a proof is set to collapse="true", then the attribute open can be set to true or false to determine the default state of the collapsable proof.
Cite a reference . Make a table:

Top Left corner	column 1	column 2	column 3
row 1	$a$	$b$	$c$
row 2	$d$	$e$	$f$
row 3	$g$	$h$	$i$

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Frist M. Last, Title 1, Press, Year. Frist M. Last, Title 2, Press, Year.