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/usr/share/doc/cadabra/properties/PropertyInherit.tex is in cadabra 1.39-0.2ubuntu2.

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\cdbproperty{PropertyInherit}{}

Indicates that an object should inherit all properties of the objects
they wrap. In most cases, the use of \subsprop{Accent} is more
appropriate, since it also makes objects inherit indices.

\cdbseeprop{Accent}