deletions | additions       diff --git a/2QEnergies.tex b/2QEnergies.tex  index d629059..326ef40 100644  --- a/2QEnergies.tex  +++ b/2QEnergies.tex 
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\begin{split}  &\ddag{\alpha}aD(\alpha)=a + \alpha \\  &\ddag{\alpha}\adag D(\alpha)=\adag + \alpha^*\\  &\ddag{\alpha}D(\alpha)=D(\alpha)\ddag{\alpha}=\mathbb{1} &\ddag{\alpha}D(\alpha)=D(\alpha)\ddag{\alpha}=\id  \end{split}  \end{equation}