# Increase spaces above and below theorems

I realize that the spacing between my theorems and the remaining texts of the document is so small and below is the latex code in question. I need there to be some reasonable space above and below every theorem environment that I create, so that the theorems will not be so much close to the remain texts of the document as they currently are.I have tried to find a source to solve my problem but to no avail. I will be grateful if someone helps me out. Thanks

\documentclass[12pt, a4 paper]{article}
\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{amssymb}
\usepackage{amsthm}
\newtheorem{theorem}{Theorem}
\newtheorem{corollary}{Corollary}[theorem]
\newtheorem{lemma}[theorem]{Lemma}
\newtheorem{definition}{Definition}[section]
\newtheorem{remark}{Remark}
\renewcommand{\contentsname}{\centering Contents}
\usepackage[left=2cm, right=2cm, top=2cm]{geometry}
\date{}
\begin{document}
\begin{centering}
\title{}
\end{centering}
\maketitle
\author{}

\end{document}

• Welcome to TEXSE, could you bring in the scripts as text instead of an image? so that we can help you, instead of starting to type them? – Raaja Jul 17 at 10:39
• Please, don't add images of code. Rather, complete the example so that the too small spaces are visible: there's no theorem in the code. – egreg Jul 17 at 13:34

## 1 Answer

Try to create your own theoremstyle by \newtheoremstyle in amsthm package. See section 4.3 of amsthdoc.pdf, which is located in your MiKTeX folder. Here is the quotation.

The amsthm package provides a \newtheoremstyle command to aid in the creation of custom styles, should the three predeﬁned styles prove insufficient. The following example illustrates the use of the \newtheoremstyle command.

\newtheoremstyle{note}% name
{3pt}% Space above
{3pt}% Space below
{}% Body font
{}% Indent amount
{\itshape}% Theorem head font
{:}% Punctuation after theorem head
{.5em}% Space after theorem head
{}% Theorem head spec (can be left empty, meaning ‘normal’)


P.S. You have two \usepackage{amsthm} in your example, btw.