deletions | additions       diff --git a/RDMFT1.tex b/RDMFT1.tex  index 8f0bc3b..4ed704f 100644  --- a/RDMFT1.tex  +++ b/RDMFT1.tex 
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\begin{eqnarray}  \sum_{i=1}^{\infty}n_{i}=N.  \end{eqnarray}  Note that within the RDMFT implementation in octopus only closed-shell systems are treated at the momment.