# Welcome to Authorea!

This is a title
and some text below it

## This is h2

and some more text below that

### This is h3 with no line breaks before it

and still more text

## testing folding

some text in between

### How do subsections appear?

#### Subsubsection

\label{name}

Why doesn’t this fold? Some more text. $$M_{i}^{-}$$ More to the point, Unicode math renders in the LaTeXmode: $$a_{i}⊕b_{i}$$ This is supposed to be ‘displaymath‘:

$$∑_{i≥0}A_{i}\nonumber \\$$

What about Unicode Cyrillic? бывать продолжать не знаю откуда не знаю аю откуда кудо куда куда да или нет? да или нет?

$$\operatorname*{hocolim}_{i}(X_{i})$$

Hey, welcome. Double click anywhere on the text to start writing. In addition to simple text you can also add text formatted in boldface, italic, and yes, math too: $$E = mc^{2}$$!

Add images by drag'n'drop or click on the "Insert Figure" button.

## h2 (CMS/CERN 2012)

Citing other papers is easy. Voilà: (CMS/CERN 2012) or (Holstein 2009). Click on the cite button in the toolbar to search articles and cite them. Authorea also comes with a powerful commenting system. Don't agree that $$E = mc^{3}$$?!? Highlight the text you want to discuss or click the comment button. Find out more about using Authorea on our help page.

# This is supposed to be a title

the real question is whether this is usable.
$$u↦v$$
Here it is without math environment:
u↦v

## this is h2

I'm just wondering about the Markdown syntax highlighting

### this is h3

and this is a blockquote, which I already know