/usr/share/doc/cadabra/properties/DiracBar.tex is in cadabra 1.39-0.2ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 | \cdbproperty{DiracBar}{}
Declares an object to be the operator which applies the Dirac bar to a
spinor, i.e.~an operator which acts according to
\begin{equation}
\bar{\psi} = i \psi^\dagger \Gamma^0\,.
\end{equation}
For more information see e.g.~\subscommand{spinorsort} or \subscommand{fierz}.
\cdbseeprop{Spinor}
\cdbseealgo{spinorsort}
\cdbseealgo{fierz}
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