Definitions, Theorems, Proofs And Remarks In LaTeX 

In this video we learn how to make enunciations such as definitions and theorems. These are a good way of helping break our paper down for our reader into easy to digest portions. They also help us as the writer to order our own thoughts.
As we're using the amsart document class, we're able to use the
ewtheorem{}{} command for theorems. For definitions, we first write \theoremstyle{definition} before writing
ewtheorem{}{}.
We also cover how to type quotation marks using `` '' instead of the " " that we're used to.
www.overleaf.com
arxiv.org/