deletions | additions       diff --git a/header.tex b/header.tex  index baaeec1..83a53ca 100644  --- a/header.tex  +++ b/header.tex 
...
\def\complexe{\mathbb{C}}  \def\naturale{\mathbb{N}}  \newcommand{\multime}[1]{\left\{ #1 \right\}}  \newcommand{\definitie}[1]{\textbf{#1}}  \newtheorem{definitie}{Definition}  \newtheorem{afirmatie}{Claim}