[OS X TeX] Microtype

[R Martinez]

Hello,

I tried to use the microtype package but it had no effect: the typeset output was identical with or without microtyping.

I'm using TS 3.10 and MacTeX-2011.

Here's the preamble of my document.
--------------

\listfiles

\documentclass[12pt]{article}

%-------Packages----------------------------------------

\usepackage{lmodern}
\usepackage{amsmath, amssymb,amsthm}
\usepackage{graphicx}

\newtheorem{theorem}{Theorem}
\newtheorem{lemma}{Lemma}
\newtheorem*{definition}{Definition}
\newtheorem*{property}{Property}


\usepackage{microtype}
\makeatletter
\def\MT at register@subst at font{\MT at exp@one at n\MT at in@clist\font at name\MT at font@list
 \ifMT at inlist@\else\xdef\MT at font@list{\MT at font@list\font at name,}\fi}
\makeatother

\usepackage[T1]{fontenc}
\usepackage{textcomp}
\usepackage{mathrsfs}
\usepackage{xspace}
-------------------


Thanks in advance for your help.

Cheers,

Raul Martinez