deletions | additions       diff --git a/2QEnergies.tex b/2QEnergies.tex  index d003543..452c8eb 100644  --- a/2QEnergies.tex  +++ b/2QEnergies.tex 
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\begin{equation}  \ddag{\alpha}aD(\alpha)=a + \alpha  \ddag{\alpha}\adag D(\alpha)=\adag + \alpha^*  \ddag{\alpa}D(\aplha)=D(\alpha)\ddag{\alpha}=\id \ddag{\alpha}D(\alpha)=D(\alpha)\ddag{\alpha}=\id  \end{equation}    \end{document}