I was trying to make a 3 point list with a brace next to 2 of the items with text next to it and than a brace that covered all three again with text next to it. I had never used an array before but I found an example of something similar to what I had in mind on this website which did use one. I fiddled around with it a bit and ended up with something that did what I wanted.
\documentclass[10pt,a4paper,oneside]{article}
\usepackage{amsmath,amssymb,amsfonts,textcomp}
\begin{document}
\begin{align*}
\left. \begin{array}{l}
\left. \begin{array}{l}
1.\text{ Mensen hebben tegengestelde oordelen.} \\
2.\text{ Elke keuze is arbitrair.} \\
\end{array}\right\} \text{Scepticisme of fenemonalisme.}\\
\hspace{0.22cm}3.\text{ Waarneming is inzicht dus is scepticisme fout.}\\
\end{array}\right\} \parbox{5cm}{Fenemonalisme is juist. \\ PNC is vals.}
\end{align*}
\end{document}
I'm quite pleased with the result except for \hspace. I was trying to align the numbers 1., 2. and 3. using & but wherever I put them they only generated extra linebreaks with the following error:
Extra alignment tab has been changed to \cr.
Without the \hspace
everything is ok, except for the 3. being close to 0.22cm to much to the left. What's a better and more elegant way to align these?