General ⇒ Bulding definitions, propositions, theorems, etc.

[anthony.actuary]

Hello

This is my first post and I am very new to TeX. I am glad I found this forum. I am having a lot of difficulty building the code that will lead to a "definition, proposition,theorem" format. For instance I would want to a.) Build a stand alone definition followed by a discussion b.) build a definition followed immediately by proposition and theorems.

For the stand alone definition I attempted:

\documentclass[12pt]{article}
\usepackage{amssymb,amsmath}
\begin{document}
\theoremstyle{Definition}
The definition
\end{document}

This code actually ran, but the result was really bad. What am I doing wrong, and how can I go about fixing it?

Thank you

anthony

[gmedina]

The amsthm package lets you handle those theorem-like structures. Refer to its documentation. Other useful documents: lshort, mathmode.

[anthony.actuary]

I could not follow thier documentation. Are you aware of any sites whith a better illustration?

Anthony

[balf]

Try the ntheorem package : there are more possibilities for customisation, and it handles better the end-of-proof symbol problem (where to put it when the proof ends with an display equation or group of equations). There is a good documentation, with a number of examples.

B.A.