I have this problem:
\begin{center}
\begin{minipage}{2in}
\begin{enumerate}[{1)}]
\item $p \lor \neg q$ Agregacion
\item $q \ent p$ Equivalenica
\end{enumerate}
\end{minipage}
\end{center}
I want that the text in every item (not the math part) aligned with the text from above .
Like a list, where I can said what rule I applied with text.
Like if every item have "2 columns" the left one for the equation and the right one for a kind of explanation.
You could use \makebox
to ensure that all your equations have the same width:
\documentclass{article}
\usepackage{mathtools}
\usepackage{enumerate}
\begin{document}
\begin{center}
\begin{minipage}{2in}
\begin{enumerate}[{1)}]
\item \makebox[2cm][l]{$p \lor \neg q$} Agregacion
\item \makebox[2cm][l]{$q p$} Equivalenica
\end{enumerate}
\end{minipage}
\end{center}
\end{document}